Is electricity expensive in New Hampshire?

New Hampshire's residential average of 27.2¢/kWh is 45% above the U.S. average of 18.8¢/kWh, ranking 43 of 51 jurisdictions (1 = cheapest).

What's the cheapest electric water heater to run in New Hampshire?

Among currently certified models, the Friedrich PROH40 T2 FD400-15 costs the least at about $175 a year at New Hampshire rates (643 kWh/yr).

How does New Hampshire compare with other states?

The same median electric water heater costs $134 a year in North Dakota (the cheapest state) and $504 in Hawaii (the priciest). New Hampshire sits at $295.

Data through April 2026

Cost to run · New Hampshire · 27.2¢/kWh residential average

How much does it cost to run an electric water heater in New Hampshire?

$295/yr · median certified model

At 27.2¢/kWh, New Hampshire ranks among the priciest states for power. The typical certified electric water heater runs about $295 annually here, which makes choosing an efficient model worth actual dollars, not rounding error.

In the national ranking, New Hampshire lands at 43 of 51 for what an electric water heater costs to run. Model choice matters as much as geography: at New Hampshire rates the most efficient certified model (Friedrich PROH40 T2 FD400-15) costs $175 a year while the most power-hungry (Smart Solar SSG2-ES 120) costs $474 — a spread of $299 every year. For reference, the national extremes are North Dakota (12.3¢/kWh) and Hawaii (46.6¢/kWh); the same median electric water heater would cost $134 and $504 a year there.

New Hampshire

$295

US average

$204

North Dakota

$134

Hawaii

$504

Median certified electric water heater (1,082 kWh/yr) per year, at each rate

The cheapest water heaters (electric) to run at New Hampshire rates

Top 10 by certified kWh, priced at 27.2¢/kWh
#	Model	kWh/yr	$/yr in NH
1	Friedrich PROH40 T2 FD400-15	643	$175
2	Rheem PROPH40 T2 RH375-15	643	$175
3	Rheem PROPH40 T2 RH400-15	643	$175
4	Rheem XE40T10H22U0	643	$175
5	Rheem XE40T10H22U1	643	$175
6	Richmond 10E40-HP515	643	$175
7	Richmond 10E40-HP5U15	643	$175
8	Ruud PROUH40 T2 RU375-15	643	$175
9	Ruud PROUH40 T2 RU400-15	643	$175
10	Eco-Logical OMNI-50HP1-1A	681	$186

Price any model at New Hampshire rates

Your rate, your numbers

Annual use (kWh)

Electricity rate

Per day: 81¢
Per month: $24.56
Per year: $295

1,082 kWh/yr × 27.2¢/kWh = $295/yr

Prefilled with the median certified electric water heater (1,082 kWh/yr). Every model page on this site carries its exact certified figure.

Questions, answered with the data

How much does it cost to run an electric water heater in New Hampshire?: About $295 a year for the median ENERGY STAR certified electric water heater, at New Hampshire's average residential rate of 27.2¢/kWh — that's $24.56 a month.
Is electricity expensive in New Hampshire?: New Hampshire's residential average of 27.2¢/kWh is 45% above the U.S. average of 18.8¢/kWh, ranking 43 of 51 jurisdictions (1 = cheapest).
What's the cheapest electric water heater to run in New Hampshire?: Among currently certified models, the Friedrich PROH40 T2 FD400-15 costs the least at about $175 a year at New Hampshire rates (643 kWh/yr).
How does New Hampshire compare with other states?: The same median electric water heater costs $134 a year in North Dakota (the cheapest state) and $504 in Hawaii (the priciest). New Hampshire sits at $295.

Keep digging

Rate source: US EIA, average residential price of electricity, see methodology.