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National Grid Deep Energy Pilot program renovation and expansion of a single family dwelling.

What You Need to Know


Deep energy retrofit (R60 roof, R40 wall, R30 foundation, R10 basement floor, R5 windows/doors); extremely low air leakage rate (< 200 CFM50, expected) premium efficiency forced hot water heating (Bosch Greenstar/Grundfoss Alpha), 4-zone air source heat pumps (Mitsubishi M series); heat recovery ventilation system

Efficiency or Sustainability Improvements:

5.76 kW solar electric system


review general contractor experience carefully

Open House Info:

Please come to 61 Oakwood Avenue, Sudbury, MA. Wall and roof sections will be displayed, and detailed information on all systems will be available!

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