A new 3.6 kW PV array part and a Deep Energy Retrofit (part of National Grid DER Pilot Program) give a 100 year old farm house an energy efficiency make-over.

EnergySage Customer
Quick Facts
Energy Needs Met

75% to 99%

of electricity

Net Investment


Return on Investment


What You Need to Know


Sunpower 3.6 kW PV system includes super efficient panels that allowed for maximized use of small roof space.

Other Benefits:

PV expandable to second roof should we get a plug in car or need to increase system size. Installation included conduit and potential for expansion.

Efficiency or Sustainability Improvements:

Deep energy retrofit of the house (see separate project lisitng) included adding 4" rigid foam to exterior walls, 5.5" foam on exterior of roof and 3-4" of spray foam at the foundation. Also replaced windows with triple-glazed low e windows, and air-sealed house to reach .08 cfm/SF @ 50 PA, to minimize heat loss from air infiltration. Low VOC paints and finishes used on floors/walls/cabinetry.

My Motivation:

#1 Goal: Lower our carbon footprint and use significantly less fossil fuels in an attempt to live more sustainably.


Consider your building envelope first, before looking adding renewable energy.

Experience with Installer:

PV Squared was terrific. From the initial assessment to the final walk through, they made the process simple and efficient. They were extremely professional and delivered what they promised.

Open House Info:

Open House Saturday, October 13, 2012 from 10:00 - 1:00. Address is 24 Hampden St. (Off South St/Rte 10) in Northampton.

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