Full service
35.91¢
per kWh, 2025 average revenue
$295.26 / month at 822 kWh
Price +2.3% from 2024
Investor Owned · 12,966 residential customers · Massachusetts
Why is my Nantucket Electric electric bill so high?
EIA respondent: Nantucket Electric Co. Reviewed October 14, 2026. Also searched as National Grid.
Nantucket Electric did not have one residential price in 2025. EIA keeps the service types separate. 2,215 full service customers averaged 35.91¢ per kWh and $295.26 a month; 10,751 delivery only customers averaged 20.75¢ per kWh and $178.82 a month. A blended average would describe neither bill. The legal name in the filing is Nantucket Electric Co.
Massachusetts's 2025 statewide residential average was 30.41¢. July 2026 was 30.49¢, versus 30.07¢ in July 2025 (+1.4%). Compare each Nantucket Electric service type with those figures on its own.
From 2024 to 2025, the average monthly bill for full service changed +4.4%. Average use changed +2.0% and average price changed +2.3%. Holding the 2024 price fixed, the usage change accounts for $5.74 a month. The price change, applied to 2025 usage, accounts for $6.60.
EIA Form 861, 2025 final · Reviewed October 14, 2026
EIA Electric Power Monthly, Table 5.6.A · Reviewed October 14, 2026
Delivery only
20.75¢
per kWh, 2025 average revenue
$178.82 / month at 862 kWh
Price +14.8% from 2024
The rate on the record
Investor-owned base rates are usually set in a state docket. Riders can change outside a full rate case. Average revenue per kilowatt-hour is total residential revenue divided by residential sales. It is not a tariff schedule.
| Service | Customers | Price | Monthly use | Monthly bill | Vs 2024 price |
|---|---|---|---|---|---|
| Full service | 2,215 | 35.91¢ | 822 kWh | $295.26 | +2.3% |
| Delivery only | 10,751 | 20.75¢ | 862 kWh | $178.82 | +14.8% |
EIA-861 sales to ultimate customers, 2025 final, compared with 2024 · Reviewed October 14, 2026
By state
| State | Service | Customers | Price | Monthly bill |
|---|---|---|---|---|
| MA | Full service | 2,215 | 35.91¢ | $295.26 |
| MA | Delivery only | 10,751 | 20.75¢ | $178.82 |
Audit the full service average
Revenue 7,847.9 thousand dollars. Sales 21,853 MWh. Customers 2,215. Cents per kWh = revenue ÷ megawatt-hours × 100. Monthly bill = revenue × 1,000 ÷ customers ÷ 12.
Audit the delivery only average
Revenue 23,070.2 thousand dollars. Sales 111,174 MWh. Customers 10,751. Cents per kWh = revenue ÷ megawatt-hours × 100. Monthly bill = revenue × 1,000 ÷ customers ÷ 12.
Why the bill spikes
Season
The 2025 monthly average in Massachusetts was 596 kWh. A hot or cold month can sit far from that. Compare kilowatt-hours with the same month last year before you blame the rate.
EIA-861 average bill file, 2025 · Reviewed October 14, 2026
A rate change
The delivery only average moved +14.8% from 2024. That is not the same thing as a new commission order. Massachusetts Department of Public Utilities is the public docket desk.
Massachusetts Department of Public Utilities · Reviewed October 14, 2026
Fuel and rider charges
Retail prices bundle generation, delivery, and other costs. A fuel adjustment or rider can move the total without a new base-rate case. The rider names on a Nantucket Electric bill need verification.
EIA, prices and factors affecting electricity prices · Reviewed October 14, 2026
Time of use
No residential dynamic-pricing enrollment was reported for 2025. A time-of-use plan on your account still needs verification.
EIA-861 dynamic pricing, 2025 · Reviewed October 14, 2026
Estimated reads
Needs verification If the statement says the read is estimated, the next actual read can true the account up or down. The rule is in the utility's tariff, which is not stored here.
Data-center load
National demand is rising, and EIA points to large computing facilities. There is no published dollar line that isolates data centers on a Nantucket Electric residential bill. Needs verification
EIA press release, January 13, 2026 · Reviewed October 14, 2026
Rate cases and hikes
Needs verification No rate case for Nantucket Electric has been reviewed for this page. Orders and pending dockets are public at Massachusetts Department of Public Utilities. Investor-owned base rates are usually set in a public docket. Municipal and cooperative rates may be set by a city or a co-op board instead. Which body sets this utility's rates needs verification.
Massachusetts Department of Public Utilities · Reviewed October 14, 2026
Assistance
LIHEAP helps with home energy bills. Start with the federal program page and the state contact list. A Nantucket Electric discount, budget-billing plan, or medical baseline needs verification.
LIHEAP · Reviewed October 14, 2026
How to lower the bill
- Read kilowatt-hours first. If use is up, the dollar total can rise on an unchanged rate.
- Check whether the read is actual or estimated. The true-up rule needs verification in the tariff.
- Add the supply charge and the delivery charge before comparing plans. This page keeps those EIA rows apart.
- Ask about budget billing and an income-qualified discount. Eligibility needs verification.
- If you are on time-of-use, move flexible load out of the expensive window. Confirm the window on the tariff.
Full service at the 2025 average price
| Monthly use | Estimated bill |
|---|---|
| 500 kWh | $179.55 |
| 750 kWh | $269.33 |
| 1,000 kWh | $359.10 |
| 1,500 kWh | $538.65 |
| 2,000 kWh | $718.20 |
Usage times the average price. At very low use, a real bill is often higher because a fixed customer charge does not shrink. The tariff needs verification.
Delivery only at the 2025 average price
| Monthly use | Estimated bill |
|---|---|
| 500 kWh | $103.75 |
| 750 kWh | $155.63 |
| 1,000 kWh | $207.50 |
| 1,500 kWh | $311.25 |
| 2,000 kWh | $415.00 |
Usage times the average price. At very low use, a real bill is often higher because a fixed customer charge does not shrink. The tariff needs verification.
Questions people ask
Why is my Nantucket Electric electric bill so high?
Nantucket Electric did not have one residential price in 2025. EIA keeps the service types separate. 2,215 full service customers averaged 35.91¢ per kWh and $295.26 a month; 10,751 delivery only customers averaged 20.75¢ per kWh and $178.82 a month. A blended average would describe neither bill. The legal name in the filing is Nantucket Electric Co. Massachusetts's 2025 statewide residential average was 30.41¢. July 2026 was 30.49¢, versus 30.07¢ in July 2025 (+1.4%). Compare each Nantucket Electric service type with those figures on its own. From 2024 to 2025, the average monthly bill for full service changed +4.4%. Average use changed +2.0% and average price changed +2.3%. Holding the 2024 price fixed, the usage change accounts for $5.74 a month. The price change, applied to 2025 usage, accounts for $6.60.
What was Nantucket Electric's average residential rate?
Using 2025 EIA-861 revenue and sales, the delivery only average was 20.75¢ per kWh. Average use was 862 kWh a month and the average bill was $178.82. This folds in whatever customer charges and riders the utility reported. It is not the marginal rate on your tariff.
Did Nantucket Electric raise rates?
The delivery only average price changed +14.8% from 2024 to 2025, from 18.08¢ to 20.75¢. That is average revenue per kilowatt-hour, not a commission order. No 2025–2026 order for this utility was retrieved for this page. A separate rider can still move a single month.
What bill assistance can Nantucket Electric customers ask about?
LIHEAP is the federal program for home energy bills (https://www.acf.hhs.gov/ocs/programs/liheap). Nantucket Electric may also offer an income-qualified discount, budget billing, or a medical baseline. The current offer, income cutoff, and how to apply need verification with the state LIHEAP office and Massachusetts Department of Public Utilities.
Are data centers why this bill went up?
Large computing load is raising U.S. electricity demand, and regulators can later recover new generation and wires costs from customers. EIA has not published a dollar line that isolates data centers on this utility's residential bill. That pass-through needs verification.