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Public Sector


In the US, GreenGen is an active partner with numerous public sector entities, including federal and municipal agencies. Click here for recent examples of GreenGen’s public sector projects.

GreenGen has a GSA Schedule 84 contract (Contract # GS-07F-143BA), which provides all federal agencies, as well as some state and local, with a vehicle to procure services from GreenGen on both a paid-for and performance-contract model.

GreenGen’s Schedule 84 SIN 246-53 is specifically for the GSA’s new and highly competitive ESPC ENABLE program. GreenGen is one of only 21 contractors in the US approved by the GSA under this schedule to support this program. In addition, GreenGen is on the US Department of Energy’s Qualified List of ESCOs.

The Federal Energy Management Program's (FEMP) Energy Savings Performance Contract (ESPC) ENABLE provides a standardized and streamlined process for small, Federal facilities to install targeted, energy conservation measures (ECMs) in six months or less. Projects are administered through the General Services Administration (GSA) Federal Supply Schedule 84, Special Identification Number (SIN) 246-53 using a set of pre-established procurement and technical tools. The program allows sites an opportunity to implement specific ECMs including lighting, water, simple HVAC controls, HVAC system replacement, and solar photovoltaic.

ESPC ENABLE offers the same benefits as a conventional ESPC while at the same time, taking advantage of the GSA Schedule and its set of pre-qualified vendors and pre-negotiated pricing. This allows for a faster selection process so that a project can be designed and installed quickly. Other traditional ESPC benefits include:

  • Zero upfront capital costs to the agency
  • Guaranteed energy cost savings that exceed annual payment
  • Prescribed measurement and verification to ensure savings are achieved
  • Standard tools and contract templates to ensure consistency and project replication
  • Qualified energy service companies
  • Extensive project assistance and technical support from the Federal Energy Management Program (FEMP) experts to ensure success.

Through the ESPC ENABLE program, smaller Federal facilities now have the opportunity not only to upgrade their old equipment, but also to contribute to a number of sustainability initiatives and enhance their ability to fulfill their stated mission.

Recent examples of GreenGen’s projects in the public sector include:

  • US Department of Agriculture – GreenGen is currently working with the US Department of Agriculture to implement an ESPC under the ESPC ENABLE program to help reduce the energy costs for a portfolio of more than 70 buildings. This assignment was competitively secured under the GSA Schedule 84 SIN 246-53 contract.
  • Federal Bureau of Investigation – GreenGen has completed energy efficiency retrofits and recommissioning on multiple leased FBI facilities. The scope of work has included lighting, mechanical systems, building envelope, controls, and behavior/data visualization.
  • City of Washington, DC – GreenGen has performed retrocommissioning work on behalf of the DC Department of General Services.
  • DC Water Authority – GreenGen has performed an energy assessment of DC Water’s portfolio of facilities, as well as provided submetering and energy efficiency work to select buildings.
  • State of Maryland – GreenGen is currently under contract to provide metering and data analytics to Maryland-based manufacturers in support of the State’s goal of making industry more competitive.
  • City of Montevideo, Uruguay – GreenGen designed and implemented a submetering and data analytics program for the City of Montevideo, Uruguay. This program included the assessment of a dozen public facilities and the implementation of submeters. Each building’s data was placed on a web-based portal to provide city officials and engineers access to consumption data, allowing them to make significant reductions based on changes to equipment, schedules, and controls.
  • CBP Yuma – GreenGen has performed an energy assessment of light poles for retrofit at the in a high security seven-mile border fence to develop optimal LED fixture design to replace existing 1000w Metal Halide fixtures on 60 foot poles
  • GSA Michigan – GreenGen has performed an energy assessment of seven GSA buildings for upgrade and installation of equipment related to water conservation, HVAC replacements. HVAC controls, and solar photovoltaic (PV), and a strong focus on interior/exterior lighting systems.


Recent examples of GreenGen UK partner BRE’s projects in the public sector include:

  • London Borough of Brent – BRE is currently working with Brent Council to provide support in delivering the RE:FIT programme for six corporate buildings and nine schools in North West London. The programme has seven distinct stages and BRE has worked in close partnership with the Council through five of these to date with investment grade proposals now complete and awaiting approval. BRE’s input has included developing the business case, project brief and invitation to tender, energy audits and producing detailed building profiles.  
  • Greater London Authority – BRE has provided energy engineering consultancy services to the Greater London Authority on a continuous basis since 2006. The service requires the team to assess energy statements produced by developers to ensure compliance with the London Plan energy policies. Due to London’s great scale and density, it is particularly suited to district heating and, hence, the policies in the London Plan have a particular emphasis on district heating with combined heat and power (CHP). 
  • Low Carbon Refurbishment – BRE conducted a survey of fourteen buildings to analyse the refurbishment opportunities and potential energy and carbon savings that could be achieved through implementation of a number of measures. The analysis considered the extent to which the energy use could be reduced, and the costs of doing so.
  • London Borough of Redbridge – BRE provided technical support for developing a highly sustainable refurbishment standard and carried out dwelling performance monitoring of 19 properties, both pre and post refurbishment.
  • Letchworth Heritage Foundation – BRE is currently working with Letchworth to implement a series of energy efficiency measures to ‘Hard to Treat’ properties in the town.
  • Northamptonshire County Council – BRE is currently working with Northamptonshire Council to review use of Building Energy Management Systems and control strategies in a number of schools in order to reduce energy use.

Recent examples of GreenGen’s work in Europe includes:

  • Swedish Township – One of GreenGen’s global PE clients owns a town, and GreenGen assessed all assets, including office, parking, retail, hotel, schools, and courthouses. A comprehensive energy plan was developed and is being implemented.
  • Belgium Hotel – GreenGen assessed a full-service hotel on behalf of a global opportunity fund. The solution included occupancy-based thermostats, enhanced controls, interior and exterior LED lighting, and low-flow water fixtures.
  • European Hotel Portfolio – GreenGen’s client acquired a portfolio of full-service hotels across the EU. The solution included upgraded mechanical systems, controls, lighting, and building envelope across more than 3,000 rooms.
  • British Science Park – GreenGen is working with the local operating partner to reduce energy related operating costs by more than 30%. Main solutions included better scheduling and controls, optimization of existing equipment, retrocommissioning of the building, and upgrading the interior lighting to LED.


Recent examples of GreenGen’s work in Japan includes:

  • Multifamily portfolio, Tokyo – GreenGen has performed energy assessments of numerous multifamily assets on behalf of its global opportunity client with a focus on LED lighting equipment and controls.
  • Class A Office, Tokyo – GreenGen conducted an assessment of prominent Class A office building with a focus on aligning energy consumption and operating hours. The solution has a heavy controls function, as well as lighting, mechanical, and VFDs.
  • Manufacturing Facility, Sendai – One of GreenGen’s global PE clients owns a company with a manufacturing facility in Sendai. GreenGen Japan is engineering comprehensive energy solutions focused on reducing energy related operating costs. Both supply-side and demand-side measures are included.
  • Industrial Flexspace, Tokyo – GreenGen has performed an energy assessment of this flex-industrial space used by a leading Japanese-listed company to house an engineering and support business unit. The solution includes lighting, mechanical, and controls.


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