Is electricity expensive in Washington?

Washington's residential average of 14.4¢/kWh is 24% below the U.S. average of 18.8¢/kWh, ranking 11 of 51 jurisdictions (1 = cheapest).

What's the cheapest dishwasher to run in Washington?

Among currently certified models, the Loch L1126 costs the least at about $11 a year at Washington rates (80 kWh/yr).

How does Washington compare with other states?

The same median dishwasher costs $30 a year in North Dakota (the cheapest state) and $111 in Hawaii (the priciest). Washington sits at $34.

Data through April 2026

Cost to run · Washington · 14.4¢/kWh residential average

How much does it cost to run a dishwasher in Washington?

$34/yr · median certified model

Residential electricity in Washington runs 14.4¢/kWh — 24% under the U.S. average — putting the median certified dishwasher at about $34 a year, versus $45 nationally.

Washington ranks 11 of 51 jurisdictions for dishwasher running costs — solidly mid-table. Model choice matters as much as geography: at Washington rates the most efficient certified model (Loch L1126) costs $11 a year while the most power-hungry (Amana ADFS2524R) costs $34 — a spread of $23 every year. For reference, the national extremes are North Dakota (12.3¢/kWh) and Hawaii (46.6¢/kWh); the same median dishwasher would cost $30 and $111 a year there.

Washington

$34

US average

$45

North Dakota

$30

Hawaii

$111

Median certified dishwasher (239 kWh/yr) per year, at each rate

The cheapest dishwashers to run at Washington rates

Top 10 by certified kWh, priced at 14.4¢/kWh
#	Model	kWh/yr	$/yr in WA
1	Loch L1126	80	$11
2	Fisher & Paykel DD24STX6I1	114	$16
3	Fisher & Paykel DD24STX6PX1	114	$16
4	Fisher & Paykel DD24SAX9	134	$19
5	Fisher & Paykel DD24SCTX9	134	$19
6	Fisher & Paykel DD24SDFTX9	134	$19
7	Fisher & Paykel DD24SI9	134	$19
8	Fisher & Paykel DD24STI9	134	$19
9	Fisher & Paykel DD24SV2T9	134	$19
10	BLACK+DECKER BCD6SD	155	$22

Price any model at Washington rates

Your rate, your numbers

Annual use (kWh)

Electricity rate

Per day: 9¢
Per month: $2.86
Per year: $34

239 kWh/yr × 14.4¢/kWh = $34/yr

Prefilled with the median certified dishwasher (239 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 a dishwasher in Washington?: About $34 a year for the median ENERGY STAR certified dishwasher, at Washington's average residential rate of 14.4¢/kWh — that's $2.86 a month.
Is electricity expensive in Washington?: Washington's residential average of 14.4¢/kWh is 24% below the U.S. average of 18.8¢/kWh, ranking 11 of 51 jurisdictions (1 = cheapest).
What's the cheapest dishwasher to run in Washington?: Among currently certified models, the Loch L1126 costs the least at about $11 a year at Washington rates (80 kWh/yr).
How does Washington compare with other states?: The same median dishwasher costs $30 a year in North Dakota (the cheapest state) and $111 in Hawaii (the priciest). Washington sits at $34.

Keep digging

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