This Garrison Colonial home in Melrose, MA is undergoing a radical transformation as a participant in the National Grid DER pilot, and is the first home to receive preliminary approval for the Zero Net Energy incentive, an exciting achievement. 

Mike Duclos of the DEAP  Energy Group assisted this project with design consulting, computer modeling, and certification services for this Zero Net Energy Deep Energy Retrofit. With reasonably careful use, this home should be able to produce more energy than it uses for all purposes. 

Advanced technologies such as nanoporus insulation, drainwater heat recovery, high performance ventilation air heat recovery, an air source heat pump hot water heater, and air source heat pump space heating cooling and dehumidification in combination with an excellent thermal envelope, European style tilt and turn windows with high performance glazing, and a micro-inverter basd PV array are combined to reach the Zero Net Energy goal and to provide an extraordinary level of thermal comfort. 

A National Grid flyer on this project is available here:

This home was a finalist in the NESEA  Zero Net Energy Building Award, having operated for two consecutive years producing more energy than it consumed for all purposes. The owner gave this presentation the home at the NESEA Building Energy Conference at the Seaport Hotel on March 4. The owner has created this poster of the project.

A report from the owner in the middle of February, 2015:

"It’s -4 degF outside and very comfortable here in the kitchen at 1:40 AM.  The TED 1001 monitor says the mini-splits used 2.8 kWh in an hour and 40 min.  Hence the average power is 1.68 kW for the mini-splits together or 840 Watts apiece.  Our kitchen toaster is 950 W so each mini-split is drawing less than a toaster’s worth to heat the entire house. Mother nature is certainly giving them a severe test.  I did shovel around the deck today to make sure some air was flowing to the heat pumps underneath through the lattice.  We’ve got snow piled up now on the deck above the railings and roughly a 3rd of the way up on the glass of the Schuco windows.  So far the DER and the heating system are working very well. “

In Wicked Local: Residents upgrade home for energy efficiency