Greenbelt Homes, Inc. Pilot Retrofit Project

In fall 2010, Greenbelt Homes, Inc. (GHI) a 1,566-home cooperative of circa 1930–1940 homes in Greenbelt, Maryland, undertook a multiyear pilot energyefficiency retrofit project. GHI established this pilot project as a basis for decision making for the rollout of a decade-long community-wide upgrade program that will incorporate energy-efficiency improvements to the building envelopes and mechanical equipment. The community upgrade is fully funded by the cooperative through its membership with no outside subsidies. This project thus presents a unique opportunity to evaluate and prioritize the wide range of benefits of high-performance retrofits based on member experience with—and acceptance of—the retrofit measures implemented during the pilot project. Addressing the complex interactions between benefits, tradeoffs, construction methods, project management implications, realistic upfront costs, financing, and other considerations provides a case study for energy retrofit projects to include high-performance technologies based on the long-term value to the homeowner.

Data and Resources

Additional Info

Field Value
Author Paul Norton
Maintainer Paul Norton
Last Updated August 27, 2018, 16:18 (Etc/UTC)
Created July 21, 2016, 21:21 (Etc/UTC)
Construction Type Retrofit
Evaluation Level Community Scale
Climate Mixed - Humid
City Greenbelt
State MD
Zip Code 20770
Phase 2010 to 2015
Project Start Date 2010-01-01
Project Estimated End Date 2014-12-31
Project Actual End Date 2014-12-31
Completed House Count 28
Expected House Count 28
Energy Savings Percentage 20
Average Estimated Pre-Retrofit Annual Source Energy (MMBtu) 1
Average Estimated Annual Source Energy (MMBtu) 1
Average Measured Pre-Retrofit Annual Source Energy (MMBtu) 1
Average Measured Annual Source Energy (MMBtu) 1
Average Conditioned Floor Area (sqft) 1000

Dataset extent

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