Energy supply
19.78¢
per kWh, 2025 average revenue
$149.58 / month at 756 kWh
Price +11.1% from 2024
Retail Power Marketer · 11,455 residential customers · Pennsylvania
Why is my NTHERM electric bill so high?
EIA respondent: NTHERM, LLC. Reviewed October 14, 2026.
In 2025, NTHERM reported 11,455 residential energy supply customers under the EIA name NTHERM, LLC. Average revenue was 19.78¢ per kWh. The average monthly bill in that filing was $149.58 for 756 kWh.
19.78¢ is about even with Pennsylvania's 2025 statewide residential average of 19.29¢. In July 2026 the state residential price was 21.72¢, versus 19.51¢ a year earlier (+11.3%). The utility number is a 2025 annual average. The state number is one later month. They answer different questions.
From 2024 to 2025, the average monthly bill for energy supply changed +10.1%. Average use changed −0.9% and average price changed +11.1%. Holding the 2024 price fixed, the usage change accounts for −$1.21 a month. The price change, applied to 2025 usage, accounts for $14.97.
EIA Form 861, 2025 final · Reviewed October 14, 2026
EIA Electric Power Monthly, Table 5.6.A · Reviewed October 14, 2026
The rate on the record
EIA classifies this respondent as a retail power marketer. 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 |
|---|---|---|---|---|---|
| Energy supply | 11,455 | 19.78¢ | 756 kWh | $149.58 | +11.1% |
EIA-861 sales to ultimate customers, 2025 final, compared with 2024 · Reviewed October 14, 2026
By state
| State | Service | Customers | Price | Monthly bill |
|---|---|---|---|---|
| PA | Energy supply | 8,061 | 20.70¢ | $162.38 |
| OH | Energy supply | 3,394 | 17.29¢ | $119.18 |
Audit the energy supply average
Revenue 20,561.4 thousand dollars. Sales 103,951 MWh. Customers 11,455. Cents per kWh = revenue ÷ megawatt-hours × 100. Monthly bill = revenue × 1,000 ÷ customers ÷ 12.
Why the bill spikes
Season
The 2025 monthly average in Pennsylvania was 839 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 energy supply average moved +11.1% from 2024. That is not the same thing as a new commission order. Pennsylvania Public Utility Commission is the public docket desk.
Pennsylvania Public Utility Commission · 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 NTHERM 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 NTHERM residential bill. Needs verification
EIA press release, January 13, 2026 · Reviewed October 14, 2026
Rate cases and hikes
Needs verification No rate case for NTHERM has been reviewed for this page. Orders and pending dockets are public at Pennsylvania Public Utility Commission. 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.
Pennsylvania Public Utility Commission · Reviewed October 14, 2026
Assistance
LIHEAP helps with home energy bills. Start with the federal program page and the state contact list. A NTHERM 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.
- If a supplier or aggregator is also on the account, add that charge to the utility charge.
- 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.
Energy supply at the 2025 average price
| Monthly use | Estimated bill |
|---|---|
| 500 kWh | $98.90 |
| 750 kWh | $148.35 |
| 1,000 kWh | $197.80 |
| 1,500 kWh | $296.70 |
| 2,000 kWh | $395.60 |
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 NTHERM electric bill so high?
In 2025, NTHERM reported 11,455 residential energy supply customers under the EIA name NTHERM, LLC. Average revenue was 19.78¢ per kWh. The average monthly bill in that filing was $149.58 for 756 kWh. 19.78¢ is about even with Pennsylvania's 2025 statewide residential average of 19.29¢. In July 2026 the state residential price was 21.72¢, versus 19.51¢ a year earlier (+11.3%). The utility number is a 2025 annual average. The state number is one later month. They answer different questions. From 2024 to 2025, the average monthly bill for energy supply changed +10.1%. Average use changed −0.9% and average price changed +11.1%. Holding the 2024 price fixed, the usage change accounts for −$1.21 a month. The price change, applied to 2025 usage, accounts for $14.97.
What was NTHERM's average residential rate?
Using 2025 EIA-861 revenue and sales, the energy supply average was 19.78¢ per kWh. Average use was 756 kWh a month and the average bill was $149.58. This folds in whatever customer charges and riders the utility reported. It is not the marginal rate on your tariff.
Did NTHERM raise rates?
The energy supply average price changed +11.1% from 2024 to 2025, from 17.80¢ to 19.78¢. 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 NTHERM customers ask about?
LIHEAP is the federal program for home energy bills (https://www.acf.hhs.gov/ocs/programs/liheap). NTHERM 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 Pennsylvania Public Utility Commission.
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.