- Option One: Purchase Equipment & Apply for Rebate
Review the Eligibility Tab. Purchase an eligible ENERGY STAR® certified room air conditioner. To receive a rebate, apply online or print and mail your rebate form and required documentation. - Option Two: Get Instant Rebates on the Mass Save Marketplace
If you already have an account, log in to the Mass Save Marketplace to explore instant discounts on available room air conditioners. If creating a new account, you will need to link your electric account to the Marketplace to qualify for instant discounts. - Option Three: Get Instant Rebates from a Participating Retailer
The Sponsors of Mass Save are partnering with retailers to offer residents instant, in-store discounts on ENERGY STAR® certified room air conditioner. To receive the discount, visit the instant rebates portal to validate your eligibility and receive a code. You will need to have your electric account number on hand. Present the code at the register, and an instant rebate will be applied to the purchase price.
Room Air Conditioners
Purchase an ENERGY STAR® certified room air conditioner—and get a $40 rebate.
ENERGY STAR® certified room air conditioners help keep your home cool and save energy.
Room air conditioning units come in window and portable versions. ENERGY STAR® certified room air conditioners now save even more energy and money with better sealing and insulation materials that keep you cool and comfortable.
Paired with weatherization upgrades (insulation and air sealing), upgrading heating and cooling equipment is one of the most effective ways to lower your energy use.
Greater discounts and no-cost options are also available to income-qualifying customers .
- This offer is only open to Massachusetts residential electric customers of Cape Light Compact JPE, Eversource, National Grid, or Unitil
- Limit two room air conditioner rebates per account per calendar year
- The rebate is good for purchases made from January 1, 2026, through December 31, 2026
- Applications for 2026 rebates and all necessary materials must be postmarked or submitted online by February 28, 2027
Case Study: Westhampton Upgrades
Homeowners in Westhampton participated in a no-cost energy assessment to find ways to make their home more comfortable. By making insulation improvements and installing LED lightbulbs and advanced power strips, the homeowners are expected to save $486 annually in energy costs.
Case Study: Shelburne Falls Addition
To make a new addition more comfortable, Angel and her husband took advantage of incentives to increase the insulation levels, install a high-efficiency mini-split heat pump, add a new fan vent, and make LED lighting upgrades.