Wellesley Municipal Light Plant


The Wellesley Municipal Light Plant (WMLP) implements best business practices to protect the safety of both its employees and the public while conducting its affairs in a socially responsible and ethical manner with respect for its many stakeholders. WMLP delivers environmentally sustainable and highly reliable electricity and telecommunication services at competitive rates.

Energy Saving Rebates and Programs

Home Energy Assessment Free
Refrigerator $50
Clothes Washer $25
Programmable Thermostat $25
Wireless Thermostat $100
Central AC $100
Unit AC $25
Dehumidifier $50
Dishwasher $25
Ductless Mini-Split Heat Pump $150 or $300
Voluntary Renewable Energy Program Monthly surcharge

WMLP offers rebates on specific heating/cooling systems, ENERGY STAR qualified appliances, and programmable thermostats. Rebates are offered for window, ductless, and central air conditioners, dehumidifiers, refrigerators, clothes washers, and dishwashers that meet or exceed ENERGY STAR ratings. These items all reduce electricity usage during peak times. Limit is two items per account per calendar year. For items purchased in 2020, the 2020 Application must be submitted by January 30, 2021.

A photo of your receipt and the yellow Energy Guide (which shows the ENERGY STAR logo) must be attached along with the application. Both are required to receive the rebate. The application may be submitted online, or it may be printed out and mailed to:

Attn: Appliance Rebate Application
4 Municipal Way
Wellesley, MA 02481

Please allow 4 to 6 weeks for processing.


Energy New England (ENE) provides conservation services for the residential customers of its partnering utilities. ENE’s highly trained and experienced Residential Energy Advisors can examine your home and identify heating, lighting, and weatherization opportunities to be more efficient and save money on your utility bills.

To schedule your Home Energy Assessment call 888-772-4242, complete the online signup or email solutions@ene.org


It is a great time to choose renewable energy. WMLP makes it easy and affordable to reduce dependence on fossil fuels, increase energy stability in NE, and provide a healthier planet for future generations. WMLP’s Renewable Energy Program is a way to reduce your carbon footprint and support the Town of Wellesley’s goal of reducing emissions by 25% by the year 2020. Currently, WMLP offers local sources of wind, water, solar, and biomass power that are all clean, reliable, and affordable.

Bringing 100% renewable energy into your home is the equivalent of taking your car off the road for nine months. That’s how much CO2 you’ll save! By signing up, you are also helping Wellesley improve its ranking in the overall percentage of customers who choose to purchase renewable energy sources. Wellesley is currently 4th in the country for percentage of enrollees.

Aside from the obvious benefits renewable energy has on the environment, New England’s economy is boosted by utilizing local sources of renewable power as well. Local renewable energy also reduces dependence on foreign and finite sources of energy.

You can choose the percentage of energy you would like to come from local renewable sources at 4 cents per kWh more than WMLP’s already low rate.

Participation Level Monthly Surcharge:

  • 10% renewable: $3 per month
  • 25% renewable: $7.50 per month
  • 50% renewable: $15.00 per month
  • 100% renewable: $30 per month

Note: This is the approximate monthly surcharge for a typical Wellesley home using 750 kWh per month.

To sign up for WMLP’s Renewable Energy Program, please submit the Online Enrollment Form. You may cancel at any time by calling the Customer Service Department at 781-235-7600, extension 3364 or 3365.