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Liberty Utilities TOU rate for EV charging in NH


Supporting Member
Apr 8, 2014
New Hampshire
Liberty Utilities is now offering a TOU rate plan for EV charging.

The current rates (9/1/2020) are here: https://new-hampshire.libertyutilit...ctric 2020/Summary of Rates GSE Sept 2020.pdf

Entire tariff doc (see page 125, "rate EV") - https://new-hampshire.libertyutilit...lectric 2020/2020-08-01 GSE Tariff No. 21.pdf

Retail Delivery Service under this rate is available for uses of a customer taking service under Rate
D as a separately metered service. By choosing to participate in this Plug In Electric Vehicle rate,
the Customer agrees to pay the following charges for a minimum of two years. The charging station
shall be connected by means of an approved circuit to a separate electric vehicle charging meter.
The rates for energy (kWh) based charges are seasonal with a winter period from November 1 to
April 30 and a summer period from May 1 to October 31.
So the $11.35 charge is for a second meter for your charging circuit. You could also go on rate D-11 if you want TOU rates for your whole house, but the critical peak is not cheap ($0.304/kWh). Customers in the Powerwall battery pilot are on D-11.

Summer night time charging drops from $0.158/kWh to $0.085/kWh. The winter night rate will be higher (due to increased night heating demand), but the projected rates I saw at the PUC hearings were still less than the standard Rate D.

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