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Home Energy Assessment

Cape Light Compact’s Home Energy Assessment utilizes a “whole house” approach to help identify energy efficient upgrades that will reduce energy bills, increase year-round comfort, and create a healthier environment.  Plus, we cover at least 75% of the cost up to $4,000 to install recommended insulation.  Please call (800) 797-6699 to schedule your free home energy assessment today! (NOTE: You must have an active NSTAR electric account in order to qualify for an energy assessment).

To learn more about our Home Energy Assessment Buddy Program with Elder Services, please click here or call 800-244-4630 x524.

The home energy assessment includes installation of instant savings measures at no additional cost, including:

  • Compact fluorescent light bulbs
  • Light emitting diode (LED) bulbs
  • Low-flow shower head and faucet aerators (when applicable)
  • Air sealing

Overview of Home Energy Assessment

What to Expect from Your Home Energy Asssessment

What to Expect from Your Insulation Installation After Your Assessment



  • Cape Light Compact covers at least 75% of the cost up to $4,000 to install recommended insulation
  • You are eligible for the available Home Energy Assessment incentives once every calendar year, so you can implement the recommended energy efficient measures from your personalized energy assessment report over time
  • You may qualify for a zero percent interest loan for energy efficient home improvements through the Mass Save® HEAT Loan Program.  The loans are available up-to $25,000 with terms up-to 7 years. To apply for the loan, the customer must own and reside in a 1 to 4 family residence and obtain a Home Energy Assessment through Cape Light Compact.  Click on the link below for more information:
  • If you purchase energy efficient products or renewable systems for your home, you may be eligible for federal tax credits.  Click on the link below for more information:
  • Please visit the RESIDENTIAL REBATES page on this website for additional savings opportunities on energy efficient products


FREE Compact Fluorescent Light Bulbs (CFLs)

  • An Energy Star® qualified CFL will save about $30 over its lifetime and pay for itself in about 6 months
  • It uses 75% less energy and lasts about 10 times longer than an incandescent bulb
  • If every American home replaced just one light with an Energy Star® light, we would save enough energy to light more than 3 million homes for a year, about $700 million in annual energy costs, and prevent 9 billion pounds of greenhouse gas emissions per year, equivalent to the emissions of about 800,000 cars

Air Sealing

Sealing a home’s envelope—its exterior walls, ceiling, and floors—is an important step in controlling the indoor environment and lowering energy bills. In typical homes, air leaks are often found at cracks, small holes, and penetrations for plumbing, wiring, lighting, and duct work.

Air sealing benefits include:

  • Improved Comfort:  A properly sealed house has fewer drafts and less noise
  • Lower Utility Bills:  Air leakage and improperly installed insulation can waste 20% or more of the energy used to heat or cool a home
  • Improved Indoor Air Quality:  A properly sealed home reduces the amount of humidity, dust, pollen, and pests that can enter the home
  • Increased Durability:  Reducing air leakage helps minimize moisture problems and increase the home’s durability

Duct Sealing

  • Leaky ducts can reduce heating and cooling system efficiency by as much as 20%
  • Sealing and insulating ducts increases efficiency, lowers your energy bills, and can often pay for itself in energy savings
  • Sealing ducts can also help improve indoor air quality by reducing the risk of pollutants entering ducts and circulating through your home
  • A properly sealed house has fewer drafts and less noise


  • The EPA estimates that homeowners can typically save up to 20% of heating and cooling costs (or up to 10% of total energy costs) by air sealing their homes and adding insulation in attics, floors over crawl spaces, and accessible basement rim joists
  • Insulation keeps your home warm in the winter and cool in the summer
  • There are several common types of insulation — fiberglass (in both batt and blown forms), cellulose, rigid foam board, and spray foam. When correctly installed with air sealing, each type of insulation can deliver comfort and lower energy bills during the hottest and coldest times of the year
  • Insulation performance is measured by R-value — its ability to resist heat flow
  • Higher R-values mean more insulating power. Different R-values are recommended for walls, attics, basements and crawlspaces
  • Insulation works best when air is not moving through or around it, so it is very important to seal air leaks before installing insulation to ensure that you get the best performance from the insulation


  • Cape Light Compact offers a $150 rebate toward a refrigerator replacement if your old model is determined to be highly inefficient during your Home Energy Assessment


Cape Light Compact is offering an incentive of $250 towards an electrician’s confirmation that knob and tube is not active in home and $300 towards resolving combustion safety issues to meet Building Performance Institute’s (BPI’s) protocols. These incentives are only eligible if these issues are identified at the time of the audit and resolved with a sign-off form. The incentive will be applied to the contract for weatherization.

© 2014 Cape Light Compact
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Cape Light Compact
P.O. Box 427/SCH Barnstable, MA 02630
1-800-797-6699 | Fax: 508-362-4136
Administered by: Barnstable County Seal