Water Heating Service Rate D5 Option 1 (Full Service Commercial)

What this tariff charges

Energy rates

The charged price is the base rate plus its adjustment. Adjustments carry fuel and rider costs and are frequently most of the bill, so a comparison built on the base rate alone is meaningless.

Energy charge

What it costs at different usage levels

Effective rate includes the fixed charge, which is why it falls as usage rises.

Rooftop solar on this tariff

A 7 kW system costing $21,000 before incentives would save between $704 and $1,252 a year on this tariff, paying back in 17–30 years . No federal tax credit is included: Section 25D ended on December 31, 2025.

no sell rate filed, but this utility reports residential net metering - the range spans no export credit to full retail netting. Compare across this state →

The utility's own description

Available to customers using hot water for sanitary purposes (other uses subject to the approval of the Company) and taking service under Residential and General Service Rate Schedules. Options I and III are also available to customers with solar assisted hot water heaters. Option I: Available to customers who desire controlled water heating service to all of the heating elements of electric water heaters, the design and method of installation of which are approved by the Company as adapted to this service, taken through a separately metered circuit to which no other load except water heating may be connected. Option II: Available to customers who desire controlled water heating service to single tank installations of 30 through 120 gallon tank capacity for residential customers, and 40 through 120 gallon tank capacity for commercial customers, the design and method of installation of which are approved by the Company as adapted to this service. This service may be taken combined with normal load through the regular meter with only the lower element controlled. NOT AVAILABLE FOR NEW INSTALLATIONS. Option III: Available to customers who desire uncontrolled water heating service to installations, the design and method of which are approved by the Company as adapted to this service, taken through a separately metered circuit to which no other load except water heating may be connected.