U.S. residential electricity EIA data: July 2026 US average 18.3¢/kWh Updated
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Kitchen · Louisiana

How Much Does It Cost to Run a Dishwasher in Louisiana?

The short answer

A typical dishwasher uses about 1.50 kWh per load, which costs $0.19 per load in Louisiana — about $4.15 a month at 5 loads a week.

The estimate uses Louisiana’s average residential electricity price of 12.7¢/kWh from EIA (July 2026) — 31% below the national average.

Source: U.S. EIA, July 2026 data · Updated

Dishwasher cost by number of loads in Louisiana

Cost at 12.7¢/kWh, the Louisiana average (EIA, Jul 2026)
UsagekWh/monthPer dayPer monthPer year
1 load/week 6.5 $0.03 $0.83 $9.95
3 loads/week 19.6 $0.08 $2.49 $29.85
5 loads/week 32.6 $0.14 $4.15 $49.74
7 loads/week 45.6 $0.19 $5.80 $69.64
10 loads/week 65.2 $0.27 $8.29 $99.49
14 loads/week 91.3 $0.38 $11.61 $139

Louisiana vs other states

Louisiana has the cheapest electricity in the country — the same dishwasher would cost $138 more a year in Hawaii.

Louisiana has the cheapest residential electricity of the 50 states and DC. Louisiana electricity rates · all states ranked

Electricity price trend in Louisiana

12.7¢/kWh in July 2026 — ▼ −3.0% from a year earlier.

How to lower the cost of running a dishwasher

Most of a dishwasher's electricity goes into heating water and running the heated-dry cycle; the pump and motor use comparatively little. A typical load uses around 1–2 kWh. ENERGY STAR models and eco cycles use less water and lower temperatures, and skipping heated dry can save around 15% per load. Running a full dishwasher generally uses less energy and water than washing the same dishes by hand.

  • Only run it when it's full, and use the eco or energy-saver cycle.
  • Turn off heated dry and let dishes air-dry with the door cracked open.
  • Scrape instead of pre-rinsing under hot water.

Questions

Frequently asked questions

How much does it cost per load to run a dishwasher in Louisiana?

A typical load uses about 1.50 kWh, which costs $0.19 at Louisiana’s average rate of 12.7¢/kWh. An efficient model can cost as little as $0.11 per load.

How many kWh does a dishwasher use per month?

At 5 loads a week, a typical dishwasher uses about 32.6 kWh a month. In Louisiana that costs $4.15.

Is it expensive to run a dishwasher in Louisiana?

Louisiana has the cheapest residential electricity of the 50 states and DC at 12.7¢/kWh — one of the cheapest. Running a dishwasher here costs about $49.74 a year at typical use, compared with $71.61 at the national average rate.

What is the electricity rate in Louisiana right now?

The average residential electricity rate in Louisiana was 12.7¢ per kWh in July 2026, according to the latest EIA data — down 3.0% from a year earlier.

Is it cheaper to use a dishwasher or wash by hand?

A full, efficient dishwasher typically uses less hot water — and therefore less energy — than washing the same load by hand under a running tap.

Dishwasher costs in nearby states

Cheapest and priciest states

Sources & method