Why Electricity Rates Vary by State and Year (2026 Explainer)
US electricity rates rose 22% in four years (15.04c to 18.34c, 2022-2026). Hawaii pays 3.7x North Dakota. Here is why.
+22%
Rate rise 2022-2026
3.7x
HI vs ND rate spread
+5%
YoY June 2026
What Is Inside Your Electricity Rate?
30-50%
Generation / Supply
The company that produces the electricity. Coal, gas, nuclear, solar, wind, hydro. Varies by fuel mix and competitive vs regulated structure.
10-15%
Transmission
High-voltage wires from power plants to local substations. Long-distance bulk transfer. Regulated by FERC. Relatively stable.
30-40%
Distribution / Delivery
Local wires from substation to your home. Maintained by the local utility. Includes smart meters, outage restoration, grid hardening.
Plus Fixed and Variable Surcharges
- Fixed monthly customer charge: $5-$15 regardless of usage
- State and local taxes: 3-8% of total bill
- Public benefit fees: low-income assistance, energy efficiency programs, demand response
- Riders and surcharges: fuel cost recovery, storm damage, capital recovery riders
Five Reasons States Differ
1
Fuel mix
Hawaii burns imported petroleum (80% of generation) at $0.15-$0.25/kWh fuel cost alone. North Dakota uses wind (35%) and cheap hydro (25%). The Pacific Northwest (WA, OR) runs on 60-70% hydro. Louisiana and Texas have abundant cheap natural gas from local production. Fuel is the single biggest driver of rate variation.
2
Grid isolation
Hawaii's island grids have no connection to the mainland grid. Importing power from a neighboring state is physically impossible. This forces HECO to maintain generation reserves on each island with no ability to share surplus. Maine and Vermont are similarly isolated from cheap Midcontinent wind, though they are connected to the Northeast grid.
3
Capacity prices
In ISO-NE (New England) and PJM (Mid-Atlantic), generators are paid a capacity payment in addition to the energy price - a payment for being available to run when needed. ISO-NE capacity prices have historically run $400-$1,000/MW-day, flowing into residential rates as an additional 2-4c/kWh. ERCOT (Texas) has no capacity market - generators are only paid for actual production, creating a different risk/cost profile.
4
Regulatory environment
California's CPUC requires utilities to recover billions in wildfire-mitigation investments (underground cables, grid hardening) through rates. PG&E alone is spending $20B+ over five years. Georgia Power is recovering the Vogtle nuclear plant's $35B cost overrun through rates approved by the PSC. Each state's PUC decides what utilities can recover through rates - a major driver of inter-state variation beyond fuel.
5
State taxes and renewable mandates
Massachusetts has an aggressive Renewables Portfolio Standard (35% by 2030) that requires procuring offshore wind at above-market prices, with the premium passed through to ratepayers. California's cap-and-trade program adds fuel cost. Texas has no state income tax but natural-gas fuel-cost adjustment riders can spike during winter events (Winter Storm Uri 2021). State policy choices directly appear in rates.
Why Rates Rose 5% in the Past Year
🔥
Natural gas prices
Gas stayed elevated through winter 2025-2026. As the primary marginal generation fuel in most US markets, gas price movements directly translate to electricity rate movements.
⚡
Data center + EV demand
Regional load grew 6%+ year-over-year in PJM and ERCOT footprints. AI data centers and EV charging added GW-scale load faster than generation was built, pushing capacity prices higher.
🏗️
Grid modernization
PG&E, ConEd, Eversource, and Dominion all received PUC approval for multi-billion-dollar grid modernization programs. Capital is recovered through rates over 20-40 years.
EIA Short-Term Energy Outlook (April 2026) projects continued 3-5% annual increases through 2027. Sources: EIA, FRED, American Action Forum data center analysis, utility 10-K filings.
Frequently Asked Questions
Why is electricity so expensive in Hawaii?+
Hawaii pays 52.72c/kWh - 2.9x the US average (June 2026) - because each Hawaiian island operates an isolated grid with no mainland connection. HECO generates approximately 80% of electricity from imported petroleum oil. The logistics of shipping fuel oil across the Pacific adds $0.15-$0.25/kWh in fuel cost alone. Unlike mainland grids that can import cheap hydropower from neighboring states, Hawaii's islands are entirely self-sufficient. Solar is the fastest-growing generation source and the best cost-reduction strategy for Hawaii ratepayers.
Why is electricity cheap in North Dakota and Idaho?+
North Dakota and Idaho both benefit from abundant hydro and wind power (ND), or predominantly hydro (ID at 60%). Hydroelectric power is the cheapest large-scale electricity source once the dam is built - variable operating costs are near zero. Both states also have low population density, meaning shorter transmission distances and lower transmission costs. ND's wind generation capacity is among the highest in the US per capita. Neither state has the high capacity-market costs that drive up Northeast rates.
What are the components of my electricity bill?+
Most electricity bills have three main components: (1) Generation/supply charge: the energy itself - electricity produced at power plants. In regulated states this is bundled with delivery; in deregulated states it is competitive. Roughly 30-50% of your rate. (2) Transmission charge: high-voltage wires moving electricity over long distances from generators to local substations. About 10-15% of your rate, regulated by FERC. (3) Distribution/delivery charge: the local wires from the substation to your home, maintained by your local utility. About 30-40% of your rate. Plus taxes, public benefit fees, energy efficiency program charges, and a fixed monthly customer charge ($5-$15).
Why did electricity rates rise 5% year-over-year in 2026?+
Three main drivers: (1) Natural gas prices stayed elevated through winter 2025-2026 as the primary marginal generation fuel in most US markets. When gas prices rise, electricity prices follow. (2) Data center and EV load growth ran 6%+ year-over-year in PJM (Mid-Atlantic, Midwest) and ERCOT (Texas) markets, straining generation capacity and driving capacity prices higher. (3) Major utilities filed multi-billion-dollar rate cases in 2024-2025 for grid modernization - PG&E's wildfire undergrounding, ConEd's transmission capex, Eversource's storm hardening, Dominion's offshore wind integration. These capital investments get recovered through rates over 20-40 years.
What is the difference between regulated and deregulated electricity markets?+
In regulated markets (the majority of US states), a single utility monopoly owns generation, transmission, and distribution for its territory. The state public utility commission (PUC) approves a rate that lets the utility recover its costs plus a regulated return. In deregulated markets (Texas ERCOT, parts of Pennsylvania, Ohio, etc.), generation is competitive - dozens of retail providers buy power from generators at wholesale and sell to customers at retail rates. The local utility retains the wires (transmission + distribution) as a regulated monopoly. Deregulation was intended to lower rates through competition; results have been mixed - Texas retail prices can be 10-20% below default rates, while some deregulated Northeast states have higher rates than comparable regulated ones.