Electricity Rates by State: The Complete 2026 Guide
From Washington's 10.76 cents to Hawaii's 43.21 cents, here is what every state pays and why.
Last updated: March 15, 2026
The national average residential electricity rate is 16.72 cents per kilowatt-hour. But that single number hides massive variation. Washington pays 10.76 cents. Hawaii pays 43.21 cents. That is a 4x difference for the exact same kilowatt-hour of electricity.
This guide covers every state, what drives rate differences, and how to find your actual rate to use in our electricity cost calculator.
The 10 Cheapest States
| Rank | State | Rate (cents/kWh) | Why It Is Cheap |
|---|---|---|---|
| 1 | Washington | 10.76 | Columbia River hydroelectric dams |
| 2 | Utah | 10.87 | Local coal + growing wind and solar |
| 3 | Idaho | 10.87 | Snake River hydroelectric |
| 4 | Wyoming | 11.23 | Largest coal producer + strong wind |
| 5 | Nebraska | 11.98 | 100% public power (no shareholder profits) |
| 5 | Louisiana | 11.98 | Natural gas producing state |
| 5 | Oklahoma | 11.98 | Oil/gas production + wind growth |
| 8 | North Dakota | 11.87 | Local lignite coal + wind |
| 9 | Montana | 12.45 | Hydroelectric + local coal |
| 10 | Arkansas | 12.63 | Low-cost natural gas + nuclear |
The pattern is clear: cheap electricity comes from two sources. Hydroelectric power (Washington, Idaho, Montana) provides nearly free generation once the dams are built. Fossil fuel proximity (Wyoming, Louisiana, Oklahoma, North Dakota) keeps transportation costs low for coal and gas plants. Nebraska's unique 100% public power structure eliminates shareholder profits entirely.
The 10 Most Expensive States
| Rank | State | Rate (cents/kWh) | Why It Is Expensive |
|---|---|---|---|
| 51 | Hawaii | 43.21 | Island isolation, imported petroleum |
| 50 | California | 31.41 | Wildfire costs, clean energy mandates, high operating costs |
| 49 | Connecticut | 29.35 | Gas pipeline constraints, expensive transmission |
| 48 | Massachusetts | 28.76 | New England pipeline bottleneck, clean energy mandates |
| 47 | Rhode Island | 27.12 | No in-state generation, New England market |
| 46 | New Hampshire | 25.34 | Small state, limited generation, New England grid |
| 46 | Alaska | 25.34 | Remote geography, diesel generation, no interconnected grid |
| 45 | New York | 22.87 | NYC underground infrastructure, high demand density |
| 44 | Maine | 22.87 | New England wholesale market, volatile standard offer |
| 43 | Vermont | 21.34 | New England costs, post-Vermont Yankee nuclear closure |
The expensive states share a different pattern. New England dominates the top 10 because of constrained natural gas pipeline capacity: the region cannot get enough gas to power plants cheaply, and the bottleneck drives up wholesale prices across all six states. Hawaii and Alaska face geographic isolation that makes fuel transportation prohibitively expensive. California's costs are driven by policy choices (wildfire mitigation, clean energy mandates) layered on top of high operating costs.
What Drives Rate Differences
Generation Fuel Source
The fuel used to generate electricity is the single largest cost component (40-60% of your bill). States with cheap fuel (hydro, local coal, local gas) have cheap electricity. States dependent on imported fuel (New England importing natural gas, Hawaii importing petroleum) pay a premium.
Renewable energy (wind and solar) has near-zero fuel cost once built, which is why states like Iowa (60%+ wind) and Oklahoma (30%+ wind) have seen rates stabilize even as fossil fuel prices fluctuate.
Transmission and Distribution Infrastructure
Moving electricity from the power plant to your home costs money. Urban areas with underground wiring (like New York City) pay more for distribution than rural areas with overhead lines. States with aging infrastructure pay more for maintenance and upgrades. States investing in wildfire prevention (California, Oregon) are passing those infrastructure costs to ratepayers.
Regulatory Structure
Some states have regulated monopoly utilities where rates are set by a public utility commission. Others have deregulated markets where generation is competitive. Neither structure is inherently cheaper; the outcome depends on how well the regulatory framework works. Texas (deregulated) has rates near the national average but with high volatility. Tennessee (regulated by TVA) has consistently low rates.
Clean Energy Mandates
States with aggressive renewable energy mandates (California, Massachusetts, New York) are investing billions in wind, solar, and battery storage. These investments add near-term costs but are expected to moderate prices long-term by reducing dependence on volatile fossil fuel markets. States without clean energy mandates tend to have lower rates today but face more uncertainty about future fuel costs.
How to Find Your Actual Rate
The state averages on this page (and on our rates by state page) represent the average across all residential customers in each state. Your actual rate may be 20-40% higher or lower depending on:
- Which utility serves your address
- Which rate plan you are on (flat, tiered, or time-of-use)
- How much electricity you use (tiered rates increase with usage)
- Seasonal adjustments and fuel surcharges
The most accurate way to find your rate is to check your most recent electricity bill. Divide your total electricity charges (before taxes) by total kWh used. That gives you your effective rate per kWh. See our complete guide: How to Read Your Electricity Bill.
Once you have your rate, enter it in the electricity cost calculator for precise appliance cost estimates.
Deregulated vs. Regulated States
In deregulated states, you can shop for a competitive electricity generation rate. This does not change your distribution utility (who delivers the power), but it can lower the generation portion of your bill by 5-15%.
States with residential electricity choice: Texas, Ohio, Pennsylvania, Connecticut, Massachusetts, New York, New Jersey, Maryland, Delaware, District of Columbia, Maine, New Hampshire, Rhode Island, and Illinois.
If you are in one of these states and have never compared supplier rates, you are likely on the default rate, which is not always the cheapest option. Check your utility's website or your state's official comparison tool.
Rate Trends: Where Are Prices Headed?
Nationally, residential electricity rates have been rising about 2-4% per year. Several factors are driving increases:
- Infrastructure aging: The U.S. electrical grid is decades old in many areas and requires expensive upgrades.
- Clean energy transition: New wind, solar, and battery storage investments add capital costs that are recovered through rates over 20-30 years.
- Extreme weather: More frequent storms, wildfires, and heat waves increase both damage costs and peak demand.
- Natural gas prices: As the dominant generation fuel nationally, gas price movements directly affect electricity rates.
The silver lining: states investing heavily in wind and solar today are building generation capacity with zero ongoing fuel costs. Once these investments are paid off, the generation component of their rates should stabilize or decline. States still dependent on fossil fuels will continue to face fuel price volatility.
Use Your State's Rate in Our Calculators
Every calculator on WattCosts lets you select your state for accurate cost estimates. The state dropdown automatically loads your state's average rate. For even more precision, enter your exact per-kWh rate from your bill.
- Electricity Cost Calculator (enter any wattage)
- Appliance Cost Calculator (select from 85+ appliances)
- Electricity Bill Estimator (add multiple appliances for a total estimate)
For detailed state information including rate context, money-saving tips, and state-specific FAQs, visit your state's dedicated page from the complete list of all 51 state rate pages.
Frequently Asked Questions
Washington has the cheapest average residential electricity rate at 10.76 cents/kWh, primarily due to abundant hydroelectric power from the Columbia River dam system. Utah and Idaho are close behind at 10.87 cents each.
Hawaii has the most expensive electricity at 43.21 cents/kWh, driven by geographic isolation and dependence on imported petroleum for generation. In the continental U.S., California is the most expensive at 31.41 cents, driven by wildfire mitigation costs and clean energy mandates.
New England's six states all rank among the most expensive because they share a common problem: limited natural gas pipeline capacity. The region cannot import enough gas to meet both heating and electricity generation demand, especially in winter. This supply constraint drives up wholesale electricity prices across all six states. Expensive transmission infrastructure and clean energy mandates add to the cost.
Nationally, rates are expected to continue rising 2-4% per year due to infrastructure upgrades, the clean energy transition, and extreme weather costs. Individual states may see different trajectories: states with growing wind and solar (like Iowa and Oklahoma) are building generation with no fuel costs, which should moderate long-term rate growth. States still reliant on fossil fuels face ongoing fuel price volatility. Significant rate decreases are unlikely in any state in the near term.
All cost estimates on this page use average residential electricity rates from the U.S. Energy Information Administration (EIA) and typical appliance wattage values. Your actual costs will vary based on your specific rate, appliance, and usage patterns. See our full disclaimer.