CEG Solutions partnered with OPM to modernize buildings through three phases of ESPC projects, delivering deep energy retrofits that cut utility costs, boosted resiliency, and set a new benchmark for sustainable federal facilities.
industry
Federal Government
location
Washington, D.C. | Charlottesville, Virginia
Solutions
Deep Energy Retrofit, Electrification & Carbon Reduction, Energy & Operational Efficiency, Energy Audits, Financial Structuring, Performance Assurance, Performance Contracting, Resiliency
Annual Savings
$1.7MM
Annual Energy Savings
24,100 MMBtu, 6.2MM gallons water
Achieved Deep Energy Retrofit status (40%+ energy savings) in the one or more buildings:
-
44% energy reduction
across total site
Overview
In 2014, OPM awarded CEG an $11M ESPC to modernize its 10-story, ~1M GSF Theodore Roosevelt Building and the Federal Executive Institute. Despite prior upgrades, CEG identified significant opportunities to improve efficiency through integrated ECMs. A subsequent $27M Phase II project expanded the approach, achieving deep energy savings and extending system life. Together, Phases I–II cut electricity use by 52% and overall energy use by 44%. Phase III, supported by $1.5M in DOE AFFECT grant funds, is now enhancing resiliency through data center and infrastructure renewal, expected to deliver an additional 14% reduction.
Solutions
Across three phases, CEG deployed a comprehensive retrofit strategy. Phase I introduced lighting, controls, and chiller upgrades. Phase II expanded the effort, converting steam systems to hot water, modernizing chillers, retrofitting AHUs, and deploying advanced controls. Phase III adds resiliency measures, cooling system retrofits, retrocommissioning, and solar PV replacement. Each phase leveraged detailed whole-building energy modeling to capture interactive effects and maximize performance.
Results
Phases I–II cut energy consumption by 37,670 MMBtu and reduced utility costs by $2.3M annually, Phase III is projected to further lower consumption by 14% while strengthening data center resiliency and modernizing core infrastructure. The combined approach has reduced plant capacities by 25%+, improved comfort, and supported OPM’s long-term sustainability commitments.
Project Highlights
- Replaced outdated steam infrastructure with a new hot-water boiler plant
- N+1 redundant heating system, a 2N redundant domestic hot water system & emergency power interconnection to improve resiliency
- 58% energy reduction
- $1.7M in annual savings
- 24,100 MMBtu saved annually
- 6.2M gallons of water savings per year
- $2.3M in utility cost savings from Phase I–II
- $1.5M DOE AFFECT grant leveraged for Phase III resiliency upgrades
Energy Conservation Measures
- High-efficiency condensing heating & domestic hot water plant
- LED lighting retrofits & advanced lighting controls (incl. daylight harvesting)
- Airside retrocommissioning
- High-efficiency AHUs with variable speed fan walls
- Air distribution upgrades & VAV conversions
- Cooling tower controls upgrade
- Kitchen appliance replacement
- Chiller plant modernization & right-sizing
- Variable speed pumping upgrades
- Demand-control ventilation
- Utility rate adjustments
- Irrigation controls & upgrades
- Domestic water fixture replacements
Related Projects
Let’s Build Together
CEG Solutions helps public and private clients modernize infrastructure, achieve deep savings, and enhance energy and operational efficiency — without disrupting mission-critical operations. Let’s talk about what we can achieve together.
Or call us 703-294-5600
"*" indicates required fields