Evaluation of Early Performance Results for Massachusetts Homes in the National Grid Pilot Deep Energy Retrofit Program

In 2009, National Grid started a DER pilot program that offered technical support and financial incentives to qualified Massachusetts homeowners who planned and successfully completed a retrofit that incorporated the performance requirements and goals of the National Grid DER measures package. This DER measures package, developed through collaboration with Building Science Corporation (BSC), includes specific thermal and airtightness goals for the enclosure components as well as health, safety, durability, and indoor air quality requirements. By providing measures that can be included with common renovation activities such as roof replacement, window replacement, re-siding, basement remediation, and remodeling, this DER measures package is expected to have widespread application for existing homes in the New England area. The post-retrofit performance and cost ranges provided by this research project can provide concrete input for homeowners who are considering a DER.

Field test data available for air tightness measured using blower door test.

House 1 - Address Belchertown, MA 01007, Notes: Energy Savings: 75%, Company: Clark
House 2-1 and 2 - Address (1) Brownsberger, MA 02478 and (2) Belmont, MA 02478, Notes Energy Savings: 73%, Company: Brownsberger
House 3 - Address Millbury, MA 01527, Notes Energy Savings: 31%, Company: Tweedly
House 4 - Address Milton, MA 02186 Notes Energy Savings: 42%, Company: Koh
House 5 - Address Quincy, MA 02169, Notes Energy Savings: 57%, Company: Hall
House 6-1 and 2 - Address Arlington, MA 02476, Notes Energy Savings: 55%, Company: Venable-Hwang
House 7 - Address Newton, MA 02459, Notes Energy Savings: 42%, Company: Lavine
House 8-1, 2, and 3 - Address Jamaica Plain, MA 02130, Notes Energy Savings: 43%, Company: Buhs
House 9 - Address Northampton, MA 01060, Notes Energy Savings: 49%, Company: Wick
House 10 - Address Lancaster, MA 01523, Notes Energy Savings: 40%, Company: Habitat for Humanity of North Central Massachusetts
House 11 - Address Brookline, MA 02445, Notes Energy Savings: 27%, Company: Aquiline
House 12 - Address Westford, MA 01886, Notes Energy Savings: 30%, Company: Atkins
House 13 - Address Gloucester, MA 01930, Notes Energy Savings: 35%, Company: Cunningham