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Heat Pump Rate

New rate option for Unitil residential electric customers in Massachusetts | Available March 1, 2025
Man with a remote control for a heat pump

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If you have a heat pump or are planning to install one, this new electric rate may benefit you! 

This new rate class gives customers using heat pumps a reduced distribution rate during the winter months (November to April). You can benefit from this rate if your monthly usage in the winter is higher than the average Standard Residential Rate (R1) customer because you are heating your home with a heat pump. Even if you are only using a heat pump to partially heat your home, you may benefit from being on the Residential Heat Pump Rate.

Ready to enroll?

Contact Customer Service at 1-888-301-7700, or complete our Contact Customer Service Form and indicate that you would like to sign up for the Heat Pump Rate.

How does the Heat Pump Rate work?

As shown below, the Heat Pump Rate has a lower distribution rate per kWh in the winter months, and the same distribution rate per kWh in the summer months and the same monthly customer charge as the Standard Residential Rate (R1).

 Residential Heat Pump Rate(R1) Standard Residential Rate
Customer Charge$8.50$8.50
Per kWh Base Distribution Charge

$0.09621 for May 1st to October 31st

$0.03435 for November 1st to April 30th

$0.09621 all months
Per kWh Supply Charge$x.xx (same as R1 Rate)$x.xx 

Find current rates

Did you know? Supply rates are separate from Distribution rates.

Rate Eligibility

To participate in Unitil's Massachusetts Residential Heat Pump Rate, you will need to affirm that you have a heat pump and commit to being on the rate for a minimum of one year.

Income Eligibility

We offer a Heat Pump Rate especially designed for income-eligible customers. These customers will receive a discount on their total bill on top of the savings offered by the heat pump rate.

High Efficiency Comfort

Are heat pumps a good fit for you?

Depending on your lifestyle, heat pumps could offer great savings.

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Ready to switch to the Heat Pump Rates?

To enroll, contact Customer Service at 1-888-301-7700, or complete our Contact Customer Service Form and indicate that you would like to sign up for the Heat Pump Rate.