
Retro-Commissioning
What is Retro-Commissioning?
Retro-commissioning is a systematic process of improving the performance of existing building systems. This process addresses problems that have developed throughout a building’s life because of issues such as aging equipment, lack of maintenance, or changes in how occupants use spaces. Retro-commissioning should occur regularly and be part of a long-term operations and maintenance strategy for your building.
How Does the Process Work
Planning
Knowing how to plan is the first step! It's important that Cx providers and owners are on the same page and discuss known issues. We'll also do a walkthrough inspection of the facility in this phase.
- Owner selects the Commissioning Agent (CxA).
- Retro-commissioning (RCx) team members are assigned – owner designates an RCx team leader, leader assigns additional responsibilities to staff to support the RCx process.
- CxA performs a walkthrough inspection.
- Owner provides basic building information (project documentation, equipment list, energy bills, etc.).
- The owner team is interviewed and provides a list of known issues.
- Development of the Current Facilities Requirements (CFR) – this document will be continuously updated.
- CxA develops an RCx plan.
Investigation
The investigative phase is where we uncover deficiencies and decide which fixes and energy conservation measures to use.
- CxA presents RCx Plan.
- CxA reviews all project documentation – equipment list, nameplate information, drawings/specs, as-builts, previous commissioning reports, energy studies, etc.
- CxA reviews the Building Automation System (BAS) and any energy management system to collect trend data and review controls programming, setpoints, graphics, etc.
- CxA develops and witnesses functional testing of equipment specified in RCx plan.
- CxA identifies, describes, and prioritizes energy conservation measures (ECMs), including energy savings calculations and simple payback analysis in an RCx Investigation Report.
Implementation
This is where we take action! After our careful planning and deliberate investigations, we figure out the best way to apply fixes, install new equipment and get energy conservation measures running.
- Create an implementation plan.
- Develop actionable scopes of work for each ECM, including verification/performance requirements.
- Implement scope of work – replace sensors and actuators, replace worn belts, implement new SOO, change equipment schedules, etc.
Verification
As they say, trust but verify. This is the homestretch where we verify that ECMs are working as intended through functional testing. We also train facilities staff on proper maintenance and provide a final Cx report where owners can see the entire process and solutions.
- CxA verifies the successful ECM implementation – functional testing after implementation and collecting data via benchmarking, utility data, and trend data.
- Facilities team gets adequate training to ensure changes are maintained to maximize performance and energy savings.
- CxA develops persistence strategies – ongoing commissioning or recommissioning activities.
- CxA provides a final report.
When You Should Consider It
Retro-commissioning may be suitable for your business if you are:
- Establishing a baseline of your energy performance.
- Looking for energy-saving opportunities for your building and existing equipment.
- If you are having issues heating and cooling your building effectively.
- Managing a building where the occupancy or work function has changed.
- Are experiencing issues with equipment and system performance.
- Noticing unexpected increases in your building’s energy costs and use.
- You are trying to obtain or improve a green building certification for your building.
Benefits of Retro-Commissioning
From a study of 100+ retro-commissioning projects in buildings ranging from 10,000 SF – to 1,000,000 SF by the Lawrence Berkely National Lab (LBNL):
- Electric Savings: 5-15%
- Gas Savings: 1-23%
- Payback Period: 0.2 to 2.1 years
- Median Savings: 45,000 per building
- Max Savings:1.8 million
- Value of Energy Saving: $0.11 – $0.72/SF
- Value of Non-Energy Saving:$0.10 - $0.45/SF
Our Lady of La Vang Parish Hall Cx
Santa Ana, CA
- 10,500 SF
- $3.5 Million Construction Cost
- Completed 2023
The newly constructed Parish Hall was completed in the third phase of the expansion and renovation improvements undertaken by the Our Lady of La Vang Church. The hall is a single-story edifice that stands independently of the surrounding Pastoral offices and comprises a spacious assembly area that can be segregated into six smaller sections, a fully equipped kitchen, and restrooms. Our team provided 2016 Title 24 nonresidential commissioning services and adhered to the CalGreen Code and the 2016 California Building Codes. The commissioning process encompassed the heating, ventilation, HVAC and controls, indoor and outdoor lighting and controls, as well as domestic hot water and controls.
CSU Fullerton, Student Housing Phase 4 MSR
Fullerton, CA
- 185,505 SF
- $99.1 Million Construction Cost
- Completed 2022
The student housing is a 3-building complex with each building having 6 stories. Floors 2-6 host student dorm suites, RA rooms, lounges, study rooms, and kitchens while the first floor holds several offices, administration suites, and multipurpose rooms. Our Cx team provided 2019 Title 24 nonresidential commissioning services and adhered to the CSU set of specifications for energy-efficient building commissioning in modern residential buildings. We provided design reviews, testing throughout the construction phase, and post-occupancy commissioning services. The project scope included the newly installed mechanical systems, plumbing systems, and electrical systems, throughout the building's interior and exterior.

CSU Fullerton, Baseball/Softball Upgrade MSR & Cx
Fullerton, CA
- 28,853 SF
- $15.1 Million Construction Cost
- Completed 2023
The Baseball and Softball Clubhouse project consists of one new 2-story baseball facility (12,439 SF), a new 2-story softball addition (10,714 SF), one new 1-story pre-engineered building covered batting cage (4,200 SF), and one new 1-story pre-engineered storage building (1,500 SF). Both baseball buildings and softball buildings have ticketing areas, video and storage spaces, locker rooms, offices, and supporting facility spaces. The Cx team provided 2019 Title 24 nonresidential commissioning services and adhered to the CSU set of specifications for energy-efficient building commissioning. The scope of our work included the mechanical HVAC, lighting control, and building automation systems on the project.
Mission College, Child Development Center Cx
Santa Clara, CA
- 9,080 SF
- Completed 2023
The Child Development Center is a one-story renovation project. The building consists of classrooms, observation rooms, offices, kitchens, storage, etc. P2S commissioning provided services per Title 24 for systems including the Heating, Ventilation, and Air Conditioning Systems, Building Automation Systems, Lighting, Lighting Controls, Domestic Hot Water Systems, Irrigation Systems, Low Voltage Distribution, and Fire Alarm/Protection System.
JWA, M1A4 IT Equipment Cabinets Ventilation Enhancements Cx
Santa Ana, CA
- Completed 2020
The M1A4 IT Equipment Cabinets Ventilation Enhancements Project improved the air conditioning for the IT equipment at various locations within John Wayne Airport. These improvements were made for server cabinets in the boarding gate cabinets, baggage/IDF rooms at Terminal A and B baggage claims, IDF ATO IT room shared with the wireless vendor, and freestanding server cabinets located in parking garages adjacent to parking entry gates. John Wayne Airport required the equipment cabinet's ventilation enhancements to comply with the 2019 California Energy Code and Cal Green. The systems commissioned for this project included Server Cabinet Air Conditioning Units, Gate Cabinet Fans, VAV Terminal units, and Mini Split System.

JWA, Operations Center Cx
Santa Ana, CA
- 3,500 SF
- Completed 2021
The John Wayne Airport Operation Center project consisted of several improvements to the existing Thomas F. Riley, Terminal A. The improvements included upgrading data server rooms and adjoining spaces that had never been upgraded since first being installed in 1990. The existing server rooms were also renovated to provide code-compliant sources for power redundancy, fire suppression, and heating, ventilating, and air conditioning capabilities. Equipment such as computer room air conditioning units, fan coil units, variable air volume terminal units, exhaust fans, and chilled water pumps were installed as part of the modernization process. P2S was brought on to the project at the beginning of the construction phase and commissioned the Fire Suppression, HVAC, Electrical Power Distribution and Lighting Controls, Communications, and Electronic Safety and Security systems.
Palo Alto USD, El Carmelo Elementary School Cx
Palo Alto, CA
- 11,000 SF
- $8 Million Construction Cost
- Completed Est. 2024
The project includes a new single-story building (Building 1) and a renovated single-story building (Building C). Building 1 consists of workrooms, labs, and multi-purpose rooms while building C consists of classrooms and workrooms. P2S is providing commissioning services for systems including the building energy management and control (EMS), HVAC, indoor and exterior lighting and controls, domestic water, and landscape irrigation.
The Boeing Company, B89 Cx
Seal Beach, CA
- 24,451 SF
- Completed 2019
This project is a full renovation of building 89 which holds office spaces and a data center. The commissioned HVAC systems included computer room air conditioning units, chillers, boilers, cooling towers, exhaust fans, air handlers, VAVs, makeup water systems, and the BAS. Electrical systems that were commissioned included lighting controls, unit substations for UPS and mechanical loads, uninterrupted power supply, and power distribution units.
The Boeing Company, B80-4 Server Room Cx
Seal Beach, CA
- 33,094 SF
- Completed Est. 2024
The Boeing Company is renovating the 4th-floor computer lab and UPS room in building 80 to satisfy its server requirements. The renovated rooms shall house the new computer equipment and incorporate new chilled water HVAC equipment and supply ductwork to maintain the room environment. The project includes adding eight new computer room units, two new CAV boxes, installing new chilled water piping from the air handler room, new floor tiles, new supply & transfer ductwork, and a new exhaust fan to enhance exhaust from the UPS room. In addition, a new BMS system will be added, and new electrical work will consist of a new uninterruptible power system, a new power distribution system, and new interior lighting controls.
The Boeing Company, B81-3 Flight Simulator Lab Cx
Seal Beach, CA
- 2,708 SF Roof Area
- Completed 2023
The project consists of installing new computer room units in the Boeing B81 3rd-floor flight simulator lab. In addition to the units listed, the renovation plan will include chilled water piping toured from the 1st-floor mezzanine with its associated valves, sensors, gauges, and more as well as floor tiles, a CAV terminal unit, VAV terminal units, interior lighting, and lighting controls. The scope also includes all-new graphics, control points, alarms, user overrides, sequence of operations, and setpoints on the BMS for the above units.
The Boeing Company, B22 AHU-4 & 6 Cx
Huntington Beach, CA
- 3,400 SF Roof Area
- Completed 2023
The Boeing Company intends to replace Building 22’s AHU-4 and AHU-6 located at the Huntington Beach facility. The replacements include air handlers, heating hot water piping, chilled water piping, supply ductwork, return ductwork, fire-smoke dampers, and temporary cooling. The scope also includes all newly installed dampers, controls, valves, and a custom-programmed sequence of operations.
Judicial Council of California, Alhambra Courthouse Upgrades Cx
Alhambra, CA
- 100,175 SF
- Completed Est. 2024
The Judicial Council of California is fully upgrading the DDC Building Management System for the HVAC systems. The upgraded BMS scope includes replacing the existing AHUs’ pneumatic control valves and dampers with new motorized control valves and dampers. The AHUs’ existing supply fans and motors will be replaced with new fan wall array technology and motor overload panels. The existing heating hot water, chilled water, and condensing water pumps will be replaced with new pumps. The existing condensing water supply and return pneumatic control valves at the cooling towers will be replaced with new motorized control valves. The AHUs are being provided with new hydronic coils. In addition, Chiller #2 will be replaced with a new chiller. The existing pneumatic isolation valves will be replaced with new motorized isolation valves.

Kindeva, LADBS Retro Cx
Northridge, CA
- 2-Buildings, 58,000 SF
- Completed 2023
Under Los Angeles Municipal Code Division 97, the LA Department of Building & Safety requires buildings over 20,000 SF to provide an Audit and Retro-Commissioning report. Under Kindeva’s planning, the P2S commissioning team is providing an ASHRAE Level II audit and retro-commissioning program for Building #09 (est. 22,000 SF) and the west half of Building #12 (est. 36,000 SF), which are fed from the same electric meter.
Northrop Gruman, Space Park Campus Boiler Replacement Cx
Redondo Beach, CA
- Multiple Mechanical Rooms
- Completed 2022
This was a bid-build project that demoed and replaced the boiler systems at the following buildings: 150A 154, 202, O2, APC, and E2. The project was built in compliance with all local building and safety codes and under the current versions of NG Design Requirements and NG Design Requirement Sections. The boiler systems commissioned for each building consisted of new boilers, boiler pumps, hot water pumps, VFDs, flow meters, and gas pressure regulators (except buildings APC & E2). Additionally, all new associated BMS controls and new lighting and lighting controls were commissioned.
Apple Inc., Beats Building CU09 Cx
Culver City, CA
- 59,000 SF
- Completed 2019
P2S Cx authorities verified that the building systems in Apple Inc’s 2-story, office tenant improvement project operated as designed. The renovated space, located at 5500 W. Jefferson Blvd., has lab and office spaces, conference rooms, a kitchen lounge, and IT rooms. Commissioning services for this project were conducted under Title 24, Part 6, and Title 24 CALGreen requirements. Our team tested the HVAC; lighting and lighting controls; domestic hot water system; building control system; emergency power systems; fire and life safety systems; and the methane detection system. Our team provided functional performance testing as well as reviewed Operations and Maintenance training to make sure it was developed following project specifications.
Northrop Gruman, M3 & M7 Reto-Cx
Redondo Beach, CA
- Completed 2023
Northrop Grumman is looking to reduce energy consumption by retro-commissioning existing mechanical equipment in Buildings M3 and M7. This project intends to optimize equipment operations for the current use of the buildings. P2S is tasked to compile an investigation report including an overview of mechanical systems, field observations, and suggested energy savings opportunities to improve the efficiency of these systems with minimum disruption to the buildings. Systems included in Building M3 are six chilled water air handling units and four DX air handling units with air-cooled condensing units. In Building M7 are nine chilled water air handling units, three water-cooled chillers, two cooling towers, three hot water boilers, two steam boilers, two air compressors, one air dryer, and two vacuum pumps.
Los Angeles County, Convention Center Facilities Condition Assessment
Los Angeles, CA
- South Hall: 346,890 SF, West Hall: 210,685 SF
- $ Million Construction Cost
- Completed 2020
P2S was tasked with identifying the current condition of the systems and equipment within the West Hall, Bridge, and South Hall portions of the Los Angeles Convention Center. The project’s objectives were to inform the operations maintenance and life-cycle pricing efforts as well as the systems and equipment that will need to be refreshed as part of the initial expansion project. P2S developed a ROM cost estimate along with an Assessment report to summarize the findings. Along with our subcontractor EMCOR, we performed a series of field investigations to determine current building and equipment conditions.

Apple Inc., Beats by Dre Tenant Improvements Cx
Culver City, CA
- 29,332 SF
- Completed 2018
Commissioning services for Apple’s 8500 Higuera St. office adhered to Title 24 standards as well as the most respected commissioning standards from ASHRAE, BCxA, and ACG. Our team provided pre-functional checklists via CxAlloy® for subcontractors who had the equipment to be commissioned. Commissioned systems were tested separately and then tested as an integrated system. P2S Cx provided functional performance testing for HVAC; lighting and lighting controls; domestic hot water; building control systems; emergency power systems; and fire and life safety systems.
Apple Inc., Beats Building CU09 Cx
Culver City, CA
- 59,000 SF
- Completed 2019
P2S Cx authorities verified that the building systems in Apple Inc’s 2-story, office tenant improvement project operated as designed. The renovated space, located at 5500 W. Jefferson Blvd., has lab and office spaces, conference rooms, a kitchen lounge, and IT rooms. Commissioning services for this project were conducted under Title 24, Part 6, and Title 24 CALGreen requirements. Our team tested the HVAC; lighting and lighting controls; domestic hot water system; building control system; emergency power systems; fire and life safety systems; and the methane detection system. Our team provided functional performance testing as well as reviewed Operations and Maintenance training to make sure it was developed following project specifications.
CSU Long Beach, Housing Expansion Phase 1 MSR & Cx
Long Beach, CA
- 127,000 SF
- $97 Million Construction Cost
- Completed 2022
- LEED Platinum Certified
Parkside Housing North is a 4-story building with 432 beds, common study areas, and lounges. P2S provided commissioning service for the project to comply with the requirements of LEED Platinum Version 4 Fundamental Commissioning and Enhanced Commissioning Option 1 Path 2: Enhanced and Monitoring-Based Commissioning and Option 2: Envelope Commissioning. The project is LEED Platinum certified and is also projected to receive the Net Zero Energy rating through the Living Building Challenge. Commissioning scope started in the schematic design phase and commissioning involvement continued into construction, occupancy, and post-occupancy commissioning services.

San Bernardino City USD, Bonnie Oehl & Emmerton Elementary Schools Cx
San Bernardino, CA
- 2-Schools, 73,239 SF
- Completed Est. 2024
San Bernardino City USD upgraded mechanical systems to two elementary schools: Bonnie Oehl (37,099 SF) and Emmerton (36, 140 SF). The existing mechanical central plant system was removed and replaced. The new source of cooling and heating is an electric chiller heat pump with new hydronic pumps and associated components. The existing multi-zone AHUs with pneumatic controls were also replaced with custom AHUs and VAVs with new Direct Digital Controls. P2S was contracted to perform commissioning to meet the design specifications, as related to Title 24 and CALgreen.
City of Long Beach, New Civic Center Independent Building Expert
Long Beach, CA
- 3-Buildings, 603,000 SF
- $520 Million Construction Cost
- Completed 2019
- LEED Gold Certified
The Civic Center is a 15.8-acre redevelopment in the heart of historic downtown Long Beach that includes a new city hall (270,000 SF), a new POLB HQ (240,000 SF), a new main library (92,000 SF), and a new Lincoln Park. This project is structured as a Public Private Partnership to design, build, finance, operate, and maintain the new Campus. The three buildings were listed with the USGBC as separate LEED projects which were commissioned to LEED v3.0 Fundamental and Enhanced Cx requirements. P2S Cx reviewed the design of the MEP systems, landscape irrigation system, building envelope, photovoltaic panels and batteries, and emergency power systems.

CSU Chico, Science Building Cx
Chico, CA
- 110,200 SF
- $101 Million Construction Cost
- Completed 2022
- LEED Silver Certified
P2S provided commissioning services for the new four-story Science Building which includes space for chemistry, physics, geological science, and science education labs, as well as classrooms, graduate research studios, a dean’s suite, faculty offices, and administrative support areas. The commissioned systems included building management and control, all HVAC, landscape irrigation, interior and exterior lighting controls, emergency power generator and transfer switches, uninterruptable power supply, photovoltaic, witness and document electrical systems testing, testing of domestic water, compressed air, and vacuum, RO/DI, and domestic water booster. Our team performed reviews starting at the schematic design phase through the construction document phase.

Big Lots, Project Jupiter Distribution Center Cx
Apple Valley, CA
- 1.3 Million SF
- $120 Million Construction Cost
- Completed 2020
The building is a one-story storage warehouse with mezzanines. On the east side, there is a one-story main office and on the south side, there is a two-story receiving/shipping office. P2S provided commissioning for the building energy management and control systems, HVAC and controls, indoor and outdoor lighting and controls, water heating, renewable energy, and landscape irrigation systems. Commissioning has been provided to comply with the requirements of LEED Version 3 under Fundamental Commissioning and Enhanced Commissioning. BAS and local package unit control setup were challenging issues to resolve, but the construction team, owner, and commissioning agent worked together to resolve all the issues to the Owner’s satisfaction.

US Navy, NAWSCL Earthquake Recovery MILCON Projects
Naval Air Weapons Station China Lake, CA
- $2 Billion Construction Cost
- Completed Est. 2024
The purpose of this ongoing design-build project is to build a replacement for existing facilities rendered unsafe by the 2019 Ridgecrest Earthquake. As an independent QA/QC Commissioning specialist, P2S provided quality assurance and quality control Cx services for 15 projects to meet Total Building Commissioning and UFC 1-200-02 High Performance and Sustainable Building Requirements. The commissioned systems include HVAC&R, building automation, lighting, service water heating, plumbing, natural gas, and propane, water pumping and mixing, energy and water utility metering, and sub-meters, building security, building envelopes. The project is pursuing certification through Guiding Principles for Sustainable Federal Buildings.
Clark County, Public Transportation, 65th Ave. Cx
Vancouver, WA
- 2-Buildings, 36,470 SF
- Completed Est. 2024
P2S is providing Cx services to Clark County Transit at the 65th Ave Campus Redevelopment. The project includes the commissioning of the 14,000 SF Maintenance Building, the 22,470 SF Operations Building, and the North Yard lighting controls. P2S is providing design phase, construction phase, acceptance phase, and post-acceptance phase services to meet Washington State Energy Code section C408. Systems commissioned include HVAC, Domestic Hot Water, Lighting Controls, Emergency Power, and Building Automation Systems.
San Diego State University, New Student Residence Hall Cx
San Diego, CA
- 171,000 SF
- $75 Million Construction Cost
- Completed 2020
- LEED Gold Certified
The Student Residence (Huaxyacac Hall) is a new two-story facility located on the west side of the campus on Parking Lot 9. The housing facility shall accommodate 850 total beds and contain a Community Food Service/Social Space, which will also serve the existing Chapultepec high rise (includes a lounge, food court, market, etc). P2S Inc provided commissioning service for the New Student Residence Hall project to comply with the requirements of LEED Version 4 Fundamental Commissioning and Enhanced Commissioning. This included design, construction, occupancy, and post-occupancy services.

San Diego State University, Zura Hall Housing Refresh MSR Cx
San Diego, CA
- 141,000 SF
- $20 Million Construction Cost
- Completed 2015
- LEED Silver Certified
The Zura Hall student housing complex underwent renovations to improve the residential experience. Our Cx team provided LEED Fundamental and Enhanced commissioning services. We provided phase reviews, construction phase testing, and post-occupancy services. The project scope included renovations to the building’s interior, and exterior, individual dorm rooms, hallways and lobbies, mechanical and electrical systems, and elevators. The building has three wings and is nine stories tall with spaces including dorms, lounges, study rooms, kitchens, laundry room and offices.

San Diego State University, South Campus Plaza MSR Cx
San Diego, CA
- 350,000 SF
- $143 Million Construction Cost
- Completed 2017
- LEED Silver Certified
San Diego State’s South Campus Plaza is the university’s first mixed-used dormitory complex. The two, 6-story buildings have room for 600 students, ground-level retail space, and an adjacent parking lot. Our Cx team commissioned the building systems to make sure they were operating at the appropriate standards for which they were designed. Our team used CxAlloy as the standard project communication and documentation management tool. This software allowed for ease and flexibility as we conducted phase reviews, construction phase testing, and post-occupancy services.

CSU San Bernardino, Student Housing & Dining Commons Cx
San Bernardino, CA
- 3-Buildings, 155,000 SF
- $78 Million Construction Cost
- Completed 2018
- LEED Gold Certified
The new Coyote Village and dining commons consists of two 4-story buildings (North 55,000 SF and South 51,700 SF) and a one-story dining hall (48,300) with a mezzanine. The systems under the commissioning scope included the energy management and control system, HVAC, kitchen exhaust, base building refrigeration, domestic hot water, indoor and outdoor lighting controls, landscape irrigation controls, emergency power generators and transfer switches, uninterruptable power supply, and data and communications.

CSU Chico, Central Plant Expansion Cx
Chico, CA
- $13.4 Million Construction Cost
- Completed 2018
P2S provided services for the new Central Plant Improvement Project which included a new chiller and two new steam boilers that were housed in addition to the plant building. A new cooling tower and a new thermal storage tank were also added to the site. The systems that were commissioned were all the new chilled water equipment including chiller, cooling tower, pumps, TES tank, and controls; new steam production equipment including boilers, deaerator, and controls; interface of new equipment with existing equipment; refrigerant monitoring and exhaust system, energy management and control systems.

CSU San Bernardino, Student Union Expansion Cx
San Bernardino, CA
- 111,225 SF
- $50 Million Construction Cost
- Completed 2022
- LEED Gold Certified
Student Union Expansion is a three-floor building with retail spaces, entertainment space, an event center, offices, a board room, and support spaces, located near the existing student union building and library building on Coyote Walk. Mechanical, electrical, plumbing, irrigation, and metering systems are commissioned by P2S in compliance to LEED BD+C v4 Fundamental and Enhanced Commissioning. Main issues discovered, investigated, and provided with solutions and analysis during the commissioning process include a low chilled water flow issue, low outside air flow issues for AHUs, and building pressure balance issues.

City of Santa Clarita, New Canyon Community Center MBCx & BECx
Santa Clarita, CA
- 24,000 SF
- $26.9 Million Construction Cost
- Completed 2021
- LEED Silver Certified
P2S provided MEPT design, LEED certification, LEED V4 Enhanced Commissioning, Building Envelope Commissioning, and Monitored-based Commissioning for the new community center. P2S designed and commissioned the following: twelve packaged rooftop HVAC air-handling units, exhaust fans, and air distribution systems; a direct digital control system; building automation and energy management system with legacy equipment compatibility; energy-efficient lighting fixtures and automatic daylighting/demand control system; emergency power and fire protection systems adhering to current code and regulations; plumbing fixtures, domestic water distribution, sanitary sewer, waste, vent, storm, and drainage; telecommunication systems to support voice, data, wireless communications, security, and AV.

Cal Poly Pomona, Administration Replacement MSR & Cx
Pomona, CA
- 138,400 SF
- $79 Million Construction Cost
- Completed 2019
- LEED Platinum Certified
The complex is home to numerous services, replacing the once-iconic Classroom/Laboratory/Administration complex. P2S commissioned the Energy Management and Controls Systems, HVAC, and electrical systems including lighting controls, emergency power generator and ATS, and UPS systems, and witnessed operational tests of electrical equipment during initial energization. The data and communications systems included telecom rooms infrastructure equipment and telecom backbone. Metering Cx was performed to verify the calibration of gas, water, flow, and electric meters, as well as to verify the interface of meters with EMS. Plumbing systems include domestic water heating systems and domestic water pumping and distribution, as well as site irrigation systems.

Orange USD, Canyon High School New Science Building Cx
Anaheim, CA
- 61,000 SF
- $45 Million Construction Cost
- Completed 2021
Our team commissioned the building and energy management system and control strategies, mechanical and HVAC systems, plumbing systems, landscape irrigation systems, and interior and exterior lighting systems. P2S Cx developed the owner project requirements, reviewed the basis of design documents, and reviewed control sequences of operations in the bid document. During the project’s construction phases, our team performed functional testing and maintained a commission issues log. For the post-occupancy phase, our Cx agents provided deferred testing as required, conducted a trend review, prepared CALGreen/Title 24 submissions, and developed a systems manual for OUSD facilities personnel.

Orange USD, El Modena High School New Science Building Cx
Orange, CA
- 41,000 SF
- $40 Million Construction Cost
- Completed 2021
Our team commissioned the building and energy management system and control strategies, mechanical and HVAC systems, plumbing systems, landscape irrigation systems, and interior and exterior lighting systems. P2S Cx developed the owner project requirements, reviewed the basis of design documents, and reviewed control sequences of operations in the bid document. During the project’s construction phases, our team performed functional testing and maintained a commission issues log. For the post-occupancy phase, our Cx agents provided deferred testing as required, conducted a trend review, prepared CALGreen/Title 24 submissions, and developed a systems manual for OUSD facilities personnel.

Orange USD, Orange High School New Science Building Cx
Orange, CA
- 49,000 SF
- $52 Million Construction Cost
- Completed 2021
Our team commissioned the building and energy management system and control strategies, mechanical and HVAC systems, plumbing systems, landscape irrigation systems, and interior and exterior lighting systems. P2S Cx developed the owner project requirements, reviewed the basis of design documents, and reviewed control sequences of operations in the bid document. During the project’s construction phases, our team performed functional testing and maintained a commission issues log. For the post-occupancy phase, our Cx agents provided deferred testing as required, conducted a trend review, prepared CALGreen/Title 24 submissions, and developed a systems manual for OUSD facilities personnel.

Orange USD, Villa Park High School New Science Building Cx
Orange, CA
- 45,000 SF
- $45 Million Construction Cost
- Completed 2021
Our team commissioned the building and energy management system and control strategies, mechanical and HVAC systems, plumbing systems, landscape irrigation systems, and interior and exterior lighting systems. P2S Cx developed the owner project requirements, reviewed the basis of design documents, and reviewed control sequences of operations in the bid document. During the project’s construction phases, our team performed functional testing and maintained a commission issues log. For the post-occupancy phase, our Cx agents provided deferred testing as required, conducted a trend review, prepared CALGreen/Title 24 submissions, and developed a systems manual for OUSD facilities personnel.

Santa Monica College, Academy of Entertainment & Technology Satellite Campus Cx
Santa Monica, CA
- 114,000 SF
- $62 Million Construction Cost
- Completed 2014
Santa Monica College’s Academy of Entertainment & Technology (AET) is a collaboration of entertainment industry employers that prepare students for media careers. The campus is located away from the main SMC campus, in the center of the Westside’s entertainment production district. Our Cx team provided mechanical, electrical, plumbing, and LEED Commissioning to three buildings: the KCRW Building; the existing AET Building; and the new AET Building.

Cerritos College, Math Building Cx
Norwalk, CA
- 33,000 SF
- $22 Million Construction Cost
- Completed 2017
Cerritos College Math building is a 2-story building of approximately 33,000 square feet. The building possesses faculty offices, classrooms, information labs, and a study center. The commissioning process was completed under the 2010 California Green Building Code for energy efficiency. The systems included in the scope were the HVAC systems, plumbing systems, and electrical systems.

Cerritos College, Health & Wellness Complex Cx
Norwalk, CA
- 88,314 SF
- $51 Million Construction Cost
- Completed 2019
- LEED Silver Certified
P2S Cx provided LEED Enhanced Commissioning services for Cerritos College’s new Health and Wellness Center and separate Field House. The centrally located athletics and recreation facility will replace the school’s former PE building and will contain space for lecture rooms, PE labs, and athletics facilities. The new building will also feature a Health Services area with a reception, treatment rooms, laboratories, triage room, nurse offices, counseling, and meeting rooms. The field house will be a new building located near the athletic fields and will include locker rooms, a laundry room, a ticketing room, storage, and offices. Our team commissioned the HVAC, plumbing, and electrical systems. P2S conducted functional performance testing, with trade and controls contractors.

Cerritos College, Fine Arts Building Cx
Norwalk, CA
- 2-Buildings, 91,000 SF
- $37.5 Million Construction Cost
- Completed 2017
For both buildings, commissioning services were performed on the mechanical systems and associated controls, the lighting controls, select electrical equipment, and the plumbing system including the domestic hot water system and the associated pumps. The commissioning agent was on hand to monitor trends, observe equipment performance, weigh in on issues that may come up during the warranty period, and work with the College to resolve the few outstanding issues. P2S Cx identified 16 outstanding issues as of the end of functional testing and was able to close all the issues based on the comments provided by the Construction Manager and verified the issues during the warranty period.

San Bernardino Valley College, Central Plant Retro Cx
San Bernardino, CA
- Various Buildings on Campus
- Completed Est. 2024
San Bernardino Valley College is looking to reduce energy consumption by retro-commissioning existing mechanical equipment in all buildings tied to the central plant. These buildings include the Administration and Student Services, Art and Gallery, Auditorium, Business Building, Campus Center, Health and Life Science, Library building, Chemistry and Physical Science, North Hall building, Media Communications, Planetarium, and Gymnasium. The P2S Cx services will result in an investigation report including an overview of mechanical systems, field observations, and suggested energy savings opportunities to improve the efficiency of these systems with minimum disruption to the buildings. The retro-commissioning services are based on ASHRAE Guideline 0.2-2015.

Chapman University, Alton Building Renovation Cx
Irvine, CA
- 52,000 SF
- Completed 2023
The project transformed the Alton Building into a hub for student service functions at the Rinker Health Science graduate campus. Modifications were made to the existing two-story office building which included the build-out of 46,000 SF for student service functions and a roughly 5,000 SF expansion of the existing Brain Institute. The lighting control systems included occupancy sensors, daylighting sensors, dimmer switches, and touchscreen switches for multi-zone control. The entire system was networked and integrated into the campus’s existing building control system. Commissioning for this project was provided following California Title-24 and LEED v4 equivalent Commissioning services as well as the most respected standards from ASHRAE, BcxA, and ACG.
Chapman University, Killefer Lab Cx
Orange, CA
- 17,130 SF
- $18 Million Construction Cost
- Completed Est. 2025
The Killefer Renovation project will rehabilitate the 1931 Lydia D. Killefer Elementary School building and adapt it for new use as Chapman University’s Institute for Quantum Studies. The scope of work will demolish the 1980 and 1981 classroom buildings located north and south of the 1931 building; construct a new, two-story laboratory building north of the 1931 School building to house the Advanced Physics Lab; and re-landscape the Project Site to create outdoor communal spaces and a flexible event space in the main courtyard. P2S is providing LEED v4 equivalent commissioning services pursuant of LEED Fundamental Commissioning and Enhanced Commissioning with the intent of achieving LEED Gold Certification.
San Jose-Evergreen Community College, Maintenance & Operations Building Cx
San Jose, CA
- 15,482 SF
- Completed 2023
The Maintenance and Operations Building and Emergency Operations Center is a two-story new construction project, and consists of offices, conference rooms, carpenter shops, warehouses, etc. The P2S commissioning team provided services for systems including the heating, ventilation, and air conditioning (HVAC) Systems, building automation system, domestic water system, lighting and associated controls, low voltage distribution, emergency power, fire alarm, access control, security, building envelope and irrigation system & associated controls.
Peckham Federal Building & Courthouse Cx
San Jose, CA
- 2-Buildings, 269,340 SF
- $15 Million Construction Cost
- Completed 2021
This project includes HVAC building system upgrades; AV electrical infrastructure upgrades to nine (9) Courtrooms (3 District, 3 Magistrate, and 3 Bankruptcy); and ABA accessibility improvements to Courtrooms 1 and 10. This project integrated and implemented sustainable design principles and energy efficiency efforts into the design and construction process within the scope and budget for future LEED certification. The basement of the courthouse contains a parking area with 22 structured parking spaces and 75 outside parking spaces.

LAX, American Airlines Terminal 4/5 Modernization
Los Angeles, CA
- 796,474 SF
- $1.5 Million Construction Cost
- Completed Est. 2028
- Targeting LEED Silver Certification
The Modernization Program is intended to unify Terminals 4 and 5 which will have significant functional improvements while addressing building infrastructure. The project is being constructed in three phases and will continue alongside the current T4.5 Core construction. P2S is providing commissioning services from the design phase to the occupancy phase that also satisfy LEED Fundamental and Enhanced Commissioning requirements.
LAX, CONRAC
Los Angeles, CA
- 489,576 SF
- $2 Billion Construction Cost
- Completed 2023
- LEED Gold Certified
As the largest rental car facility in the world, ConRac is designed to reduce congestion while improving the experience of travelers who utilize rental car operations at LAX. The facility includes parking stalls with ready/return spaces, idle vehicle storage spaces, rental car employee spaces, fueling dispensers, pick-up/drop-off areas, a Customer Service Building, and a multi-level Quick Turn-Around facility for on-site fueling, washing, oil changes, and light maintenance of rental car vehicles. P2S was trusted to be the exclusive commissioning subcontractor to PCL Construction providing LEED enhanced commissioning under LEED v4 for multiple building areas with various equipment and systems. As a critical element of the LAMP, the ConRAC is set to accommodate the growth of and entry into the LAX market by independent operators. The consolidated rent-a-car facility will be directly connected to the Automated People Mover, which will operate 24/7 and be free for all users.

LAX, American Airlines Terminal 4.5 APM Core Project
Los Angeles, CA
- 88,024 SF
- $1.5 Billion Construction Cost
- Completed 2023
- LEED Gold Certified
P2S provided LEED Enhanced Commissioning services for the new American Airlines Terminal 4.5 Core, which serves to connect the APM passengers to Terminals 4 and 5. This project is comprised of a 5-story mixed-use air passenger terminal to provide efficient circulation with clear direction for passengers. The mechanical, electrical, plumbing, technology, fire life safety, and building automation systems were commissioned under LEED v4.
LAX, Southwest Airlines Terminal 1.5 Cx
Los Angeles, CA
- 193,963 SF
- $490 Million Construction Cost
- Completed 2021
- LEED Silver Certified
P2S commissioning inspected design intent, functional operation, and maintenance accessibility for mechanical, electrical, plumbing, fire life safety, and building envelope systems. Issues throughout the design phases were identified and adjustments were made to the LEED points pursued, technical specifications, and drawings set to better meet the owner’s design intent saving them issues later in the construction phase.

LAX, Technical Operations Center Cx
Los Angeles, CA
- 3 Buildings - 392,967 SF
- $352 Million Construction Cost
- Completed 2021
- LEED Gold Certified
P2S provided LEED Enhanced Commissioning and Monitoring-Based Commissioning services for the new center. The project is comprised of a 2-story, 173,679 SF Aircraft Maintenance Complex, a 160,000 SF Hangar, and a 59,288 SF Ground Service Equipment and Facility Maintenance Complex. P2S Cx overcame several challenges, including facilitating coordination within a large team and coordinating with strict security measures. Our team identified 435 issues throughout the commissioning process and is still working with the entire construction team to find resolutions to the remaining issues with confidence that the project can close out with 0 issues outstanding.

SDIA, Retro Cx Investigational Study
San Diego, CA
- Completed 2020
The commissioning team at P2S identified a powerful solution to achieve maximum energy savings, by using a demand flow optimization strategy to reduce energy consumption helping SDIA target central maintenance services and plant operation. Our services include remote and on-site monitoring with weekly analysis of system metrics. These diagnostic services will optimize the CUP allowing for more cost-effective management. P2S identified numerous issues related to the sequence of operations and made several recommendations for improving chiller systems efficiency. P2S also adjusted chiller staging based on cooling demand and chiller efficiency.

Christ Cathedral Renovation Cx
Garden Grove, CA
- 79,010 SF
- Completed 2019
The renovated Christ Cathedral features high-efficiency MEP systems and the latest communications, audiovisual, and acoustics systems. These new features ensured that the glass cathedral met the latest California Energy Standards. P2S commissioned mechanical, electrical, plumbing, and building management control systems. We used CxAlloy, a cloud-based commissioning software platform during the process, which tracks all commissioning activities. This project adhered to Title 24-2016 Part 6 commissioning requirements and also followed ASHRAE Guideline 0-2013 along with the AABC Commissioning Group and Building Commissioning Association’s best practices standards.

Compton USD, Compton High School Reconstruction Cx
Compton, CA
- 3-Buildings, 196,000 SF
- $100 Million Construction Cost
- Completed Est. 2025
P2S is providing Cx for the two-story 128,056 SF Academic Building, one-story, 33,600 SF Gymnasium/Pool Building, and one-story, 35,307 SF Performing Arts Center. Our team has completed the design phase commissioning services and will continue to provide services throughout the construction and post-operation phases. Commissioning is being performed to ensure compliance with the 2019 California Energy Code, Cal Green requirements, and requirements of the Collaborative for High-Performance Schools. The systems commissioned include the Building Energy Management and Control, HVAC, indoor and exterior lighting and controls, landscape irrigation, and domestic hot water.
Riverside County, New Menifee Justice Center Cx
Menifee, CA
- 89,690 SF
- $95 Million Construction Cost
- Completed Est. 2024
- Targeting LEED Silver Certification
The new trial court facility is comprised of nine courtrooms, accommodating approximately 150 judges and court support staff, and will have three above-grade, with no below-grade floors. P2S is providing commissioning services to fulfill the LEED v4 Fundamental Commissioning and Verification prerequisite and Enhanced Commissioning Credit. P2S’ scope began in the design phase and will continue through the warranty period for this project. The systems commissioned include HVAC and associated controls; building automation; Lighting Controls; Domestic Hot Water; Electronic Security; Communications; Uninterruptible Power Supply; Electric Vehicle Chargers and Building Enclosure.

US Navy, NAVFAC SW Paint Complex Exp. Cx
Coronado Island Naval Base, CA
- 51,785 SF
- Completed 2022
P2S is providing quality assurance of the total Building Commissioning Process for Buildings and Systems of the Paint and finishing Hangar and Corrosion Control facilities based on ASHRAE Guideline 0-2019 The Commissioning Process, ASHRAE 202-2019 Commissioning Process for Buildings and Systems, UFGS for Total Building Commissioning, Unified Facilities Criteria Design Criteria and the Whole Building Design Guide. P2S provided a full and independent review of the design submittals, issued comments, and coordinated solutions. We provided reports on any issues related to the commissioning of the mechanical/electrical systems, industrial equipment and systems, and constructability of the design with recommended resolutions for successful commissioning results.
Stanislaus County, Modesto Court Building Cx
Modesto, CA
- 308,954 SF
- $351 Million Construction Cost
- Completed Est. 2025
- Targeting LEED Silver Certification
The new trial court facility is comprised of twenty-seven courtrooms, accommodating approximately 350 judges and court support staff. The building will have eight above-grade and one below-grade level. P2S is providing LEED Fundamental and Enhanced Commissioning for the HVAC and controls, building automation, lighting, and domestic water systems. Commissioning will also be performed on the electronic security, communication, uninterpretable power supply, and emergency power generation systems.

US Navy, SFL PADS & PCAS
Naval Air Weapons Station China Lake, CA
- $2 Billion Construction Cost
- Completed Est. 2024
The purpose of this ongoing design-build project is to build a replacement for existing facilities rendered unsafe by the 2019 Ridgecrest Earthquake. P2S is providing quality assurance and quality control commissioning services for 15 projects to meet Total Building Commissioning and UFC 1-200-02 High Performance and Sustainable Building Requirements. The commissioned systems include HVAC&R, building automation, lighting, service water heating, plumbing, natural gas and propane, water pumping and mixing, energy and water utility metering, sub-meters, building security, and building envelope. The project is pursuing certification through Guiding Principles for Sustainable Federal Buildings.
VA American Lake, Building 18 Renovation Cx
Lakewood, WA
- 19,000 SF
- Completed 2019
P2S Cx served as the Commissioning Specialist for the renovation of Building 18 on the American Lake Campus. The building underwent upgrades to its HVAC and lighting systems for improved indoor air quality and energy efficiency. Our team provided expertise in MEP systems and oversaw commissioning to ensure compliance with code regulations and quality assurance. One challenge was closely monitoring the commissioning progress and tracking outstanding items until resolution, which we accomplished using a cloud-based platform. Our team coordinated upcoming commissioning activities to ensure on-time project delivery.

Kaiser Permanente Orchard, MOB HVAC Upgrades Cx
Downey, CA
- Building A: 16,568 SF, Building C: 44,302 SF
- Completed 2023
P2S commissioning was hired by Kaiser Permanente to provide services for the AC replacements. Six air handling units in total were replaced within Medical Office Buildings A and C. The commissioning process began at the design phase to ensure the Owner’s Project Requirements were met. P2S completed design reviews, reviewed the Basis of Design, and ensured project acceptance criteria were incorporated in the design documents. Throughout the construction and acceptance phases of the project, our team worked closely with the project management team, Kaiser Engineering and Facilities team, and the construction team. P2S led the functional performance testing of the air handling units, reviewed trend data to confirm system performance and coordinated and assisted with issue resolution for the project followed by a warranty phase service.
US Navy, Naval Base Ventura County Cx BEQ 1517
Port Hueneme, CA
- 29,600 SF
- Completed Est. 2024
This design-build project will renovate a three-story building: BEQ 1517. The mechanical scope includes replacing the exhaust fans in the bathrooms with multi-centralized roof exhausters to allow for continuous ventilation and providing new exhaust fans for each janitor’s closet and electrical room. 72 packaged terminal heat pump units with fresh air intakes replaced the radiant heaters in each living space and are controlled by zone thermostats. All lighting systems were replaced with new LED lighting and automatic controls. The existing solar domestic hot water system will also be replaced with a new system equipped with redundant hot and cold-water boosters. Commissioning requirements are identified in the UFGS section 01 91 00.15 20 Total Building Commissioning and UFC 1-200-02 High Performance and Sustainable Building Requirements.
VA Southern Arizona, Boiler Plant Cx
Tuscan, AZ
- 4,764 SF
- Completed 2022
The existing boiler plant at the Southern Arizona Veterans Administration Healthcare System went through upgrades to support the operation of the existing equipment. Upgrades were performed on several ancillary systems, including a remodel of the interior plant, replacement of the boiler feedwater pumps, installation of a new water tempering system for the existing boiler blowoff tank, and replacement of the existing fuel oil tanks, pumps, and filtering system. P2S was brought onto the project in the construction phase and worked to ensure all systems were installed, started up, programmed, and operated as required per contract documents. Our team worked closely with the subcontractors to verify the equipment's performance and assisted in the resolution of all issues observed throughout the construction phase of the project.

Kaiser Permanente Medical Center, Pharmacy Remodel Cx
Downey & Anaheim, CA
- 1,000-2,000 SF Per Project
- Completed 2020
The P2S Cx team provided services for ten inpatient pharmacy remodeling projects. The commissioning process was designed to achieve OSHPD 3 requirements and Kaiser standards. The process started in the design development phase through project turnover to meet the Owner’s Project Requirements. During the construction phase, we performed site inspections to verify equipment installation and TAB verification before the functional performance test to ensure the system was properly balanced to achieve the pressurization and ACH requirements. Trend review and analysis were also performed to verify operation acceptance criteria and USP 797/800 requirements on temperature, pressure, relative humidity, and air change per hour are met. The systems commissioned included a two-pipe Fan Coil Unit, Outside Air Valve, Return Air Valves, Supply Air Valves, Exhaust Air Valves, Exhaust Fans, VFDs, Critical Room Control System, BMS Control System.
Long Beach City College, Liberal Arts Campus, Building V Retro Cx
Long Beach, CA
- 73,650 SF
- Completed 2023
P2S provided Retro-Commissioning services for the Culinary Arts, Building V at the Liberal Arts Campus for LBCC. The building was approximately six years old and had numerous operational issues. This project was recommended to be completed in two phases. The first stage consists of evaluating and diagnosing the various issues in the building. A report will be developed with the findings and recommendations. This phase will also include evaluating existing documents to identify potential design issues. The scope of the second stage will consist of producing construction documents for recommended upgrades/modifications.

Recent Retro-Commissioning Projects
Kindeva LADBS Retro Cx
Under Los Angeles Municipal Code Division 97, the LA Department of Building & Safety requires buildings over 20,000 SF to provide an Audit and Retro-Commissioning report. Under Kindeva’s planning, the P2S commissioning team is providing an ASHRAE Level II audit and retro-commissioning program for Building #09 (est. 22,000 SF) and the west half of Building #12 (est. 36,000 SF), which are fed from the same electric meter.
LBCC Liberal Arts Campus Bldg V RCx
P2S provided Retro-Commissioning services for the Culinary Arts Building V at the Liberal Arts Campus for LBCC. The building was approximately six years old and had numerous operational issues. This project was recommended to be completed in two phases. The first stage consists of evaluating and diagnosing the various issues in the building. A report will be developed with the findings and recommendations. This phase will also include evaluating existing documents to identify potential design issues. The scope of the second stage will consist of producing construction documents for recommended upgrades/modifications.
SBVC Retro Commissioning
San Bernardino Valley College is looking to reduce energy consumption by retro-commissioning existing mechanical equipment in all buildings tied to the central plant. The P2S Cx services will result in an investigation report including an overview of mechanical systems, field observations, and suggested energy savings opportunities to improve the efficiency of these systems with minimum disruption to the buildings. The retro-commissioning services are based on ASHRAE Guideline 0.2-2015.
M3 & M7 Retro-Commissioning
Northrop Grumman is looking to reduce energy consumption by retro-commissioning existing mechanical equipment in Buildings M3 and M7. This project intends to optimize equipment operations for the current use of the buildings. P2S is tasked to compile an investigation report including an overview of mechanical systems, field observations, and suggested energy savings opportunities to improve the efficiency of these systems with minimum disruption to the buildings.