A9 Green / Total Green Energy Solution, LLC - Efficiency Standards
A9 Green / Total Green Energy Solution, LLC - Save Energy, Save the Earth!        (781) 357-2454
We are proud to provide rating services to qualify new homes and additions of at least 500 square feet for the ENERGY STAR® label. ENERGY STAR qualified new homes are more energy efficient than homes built to the minimum code requirements. Even in states with more rigorous energy codes, the U.S. EPA ensures that ENERGY STAR remains the symbol for truly energy-efficient performance. These homes are good for businesses, consumers, and the environment.

Benefits of owning an ENERGY STAR qualified new home include:
A Label Backed by the Government
All ENERGY STAR qualified new homes are certified to meet EPA’s strict guidelines for energy efficiency. This exemplary performance is verified by an independent third party.
Lower Utility Costs
Compared with standard homes, ENERGY STAR qualified new use substantially less energy for heating, cooling, and hot water heating. Homeowners can expect to save about $200–$400 annually on their utility bills.
More Comfortable/Quieter Homes
The energy-efficient features of ENERGY STAR qualified new keep out excessive heat, cold, and noise, and also ensure consistent temperatures between and across rooms-making these homes more comfortable to live in.
Helping to Create a Better Future
By purchasing an ENERGY STAR qualified new home, you are joining millions of consumers who have switched to ENERGY STAR, helping our nation reduce our energy needs and building a cleaner environment for the future.
ENERGY STAR systems include:
  • Effective Insulation — Properly installed insulation that meets or exceeds national code requirements helps achieve even temperatures throughout the house while using less energy. The result is lower utility costs and a quieter, more comfortable home.
  • High-Performance Windows — Advanced window coatings help keep heat in during winter and out during summer. They also block damaging ultraviolet sunlight that can discolor carpets and furniture.
  • Tight Construction and Tight Ducts — Attention to detail by sealing all holes, cracks, and seams in ducts and construction assemblies helps eliminate drafts, moisture, dust, pests, and pollen. This improves comfort and the quality of indoor while lowering maintenance costs.
  • Energy-Efficient Heating and Cooling Equipment — More efficient and properly sized heating and cooling systems use less energy, which reduces utility bills. These systems also turn on and off less frequently, removing more humidity and providing better comfort.

Learn more about ENERGY STAR qualified new homes at http://www.energystar.gov/.

Stretch Code
The Stretch Energy Code, or “stretch code”, is an alternative energy code for Massachusetts towns looking to be more energy efficient. As of May 10, 2017, 199 Massachusetts communities have adopted the Stretch Code.

Stretch Code Map     05-15-17

Stretch Code is Mandatory for ·      
* New residential buildings 4 stories or less
* Home additions and renovations requiring a building permit  

To Meet the Stretch Code you Must ·      
* Hire Home Energy Rating System (HERS) Rater ·      
* Meet the energy efficiency requirements for the property (ask your HERS Rater for details)   

ENERGY STAR can help ·      
Ask if your home can qualify for Home Performance with ENERGY STAR incentives.  

Who to Call
A9 Green / Total Green Energy Solution is your Lexington-based RESNET certified Rater. Expertise in software engineering, architecture, and the science of optimization help us maximize home energy performance while saving you time and money. We help Greater Boston builders, architects, and homeowners with their Stretch Code and ENERGY STAR projects while enhancing comfort and protecting the Earth.


Residential Energy Services Network (RESNET) is an industry not-for-profit membership corporation and a national standards making body for the building of energy efficiency rating systems.

The provisions of the RESNET standard are intended to define a framework for a home energy audit process. An accredited provider or a program may apply this standard to improve the energy performance of existing homes through uniform, comprehensive home energy audits for existing residential buildings. This standard is intended to result in investments by building owners that produce the following outcomes:

  • Increase the energy efficiency of homes;
  • Increase the comfort of homes;
  • Increase the durability of homes;
  • Ensure that energy improvement recommendations are portrayed with reasonable and consistent projections of energy savings;
  • Reduce the risk that energy improvement recommendations will contribute to health, safety, or building durability problems; and
  • Reduce waste and pollution, protecting the environment.

Who Recognizes RESNET Standards?

  • Mortgage industry for capitalizing energy efficiency in mortgages
  • Financial industry for certification of "white tags"
  • Federal government for verification of building energy performance for:
    • Federal tax credit qualification
    • EPA ENERGY STAR labeled homes
    • U.S. Department of Energy Building America program

Learn more about RESNET at http://www.resnet.us/

A9 Green / Total Green Energy Solution, LLC
(781) 357-2454

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