Open Data — US Energy & EV Datasets
These are the datasets our calculators actually run on, published as CSV and JSON. Free to use, including commercially — credit us and link back. No signup, no key, no rate limit.
Licence
- Published under CC BY 4.0 — use, redistribute, and modify freely, commercially or not.
- Attribution is the one condition. Each dataset below gives the citation line to use.
- Figures sourced from US federal agencies (EIA, EPA) are public domain at origin. The licence covers our compilation of them.
US residential electricity rates by state
Average residential electricity price in dollars per kWh for all 50 states and the District of Columbia.
- Rows
- 51
- Period
- 2024 annual average
- Updated
- 2026-06-18
| state | abbr | slug | rate_per_kwh | data_period |
|---|---|---|---|---|
| Alabama | AL | alabama | 0.1518 | EIA, 2024 annual avg |
| Alaska | AK | alaska | 0.2482 | EIA, 2024 annual avg |
| Arizona | AZ | arizona | 0.1491 | EIA, 2024 annual avg |
| Arkansas | AR | arkansas | 0.1232 | EIA, 2024 annual avg |
| California | CA | california | 0.3197 | EIA, 2024 annual avg |
First 5 of 51 rows.
Field descriptions
- state
- State or district name
- abbr
- USPS two-letter code
- slug
- URL segment used on this site
- rate_per_kwh
- Average residential price, USD per kWh
- data_period
- Period the figure covers
Cite it like this
WattSimple, “US residential electricity rates by state” (2024 annual average). Source: US Energy Information Administration. https://wattsimple.com/data/state-electricity-ratesAverage monthly electric bill by state
Average residential monthly electricity consumption and bill for each US state, with the matching per-kWh rate.
- Rows
- 51
- Period
- 2024 annual average
- Updated
- 2026-06-18
| state | abbr | monthly_kwh | monthly_bill_usd | rate_per_kwh | bill_rank |
|---|---|---|---|---|---|
| Hawaii | HI | 495 | 212.12 | 0.4286 | 1 |
| Connecticut | CT | 695 | 199.66 | 0.2875 | 2 |
| Alabama | AL | 1143 | 173.5 | 0.1518 | 3 |
| Massachusetts | MA | 570 | 167.2 | 0.2935 | 4 |
| Maryland | MD | 929 | 165.87 | 0.1786 | 5 |
First 5 of 51 rows.
Field descriptions
- state
- State or district name
- abbr
- USPS two-letter code
- monthly_kwh
- Average residential consumption, kWh per month
- monthly_bill_usd
- Average residential bill, USD per month
- rate_per_kwh
- Average residential price, USD per kWh
- bill_rank
- Rank by monthly bill, 1 = highest
Cite it like this
WattSimple, “Average monthly electric bill by state” (2024 annual average). Source: US Energy Information Administration. https://wattsimple.com/data/average-electric-billsResidential electricity rates by utility
Residential price, average monthly bill, and customer count for the largest US electric utilities, broken out by the state each utility serves.
- Rows
- 354
- Period
- EIA-861, 2024
- Updated
- 2026-07-01
| utility | eia_id | ownership | state | rate_per_kwh | avg_monthly_bill_usd | residential_customers | slug |
|---|---|---|---|---|---|---|---|
| Florida Power & Light | 6452 | Investor Owned | FL | 0.1371 | 154.7 | 5236277 | florida-power-and-light |
| Southern California Edison | 17609 | Investor Owned | CA | 0.3243 | 164.02 | 3219520 | southern-california-edison |
| Commonwealth Edison | 4110 | Investor Owned | IL | 0.1522 | 88.72 | 2922223 | commonwealth-edison |
| Consolidated Edison Co-NY | 4226 | Investor Owned | NY | 0.3566 | 130.14 | 2715069 | consolidated-edison-co-ny |
| Virginia Electric & Power | 19876 | Investor Owned | VA | 0.1409 | 141.63 | 2383548 | virginia-electric-and-power |
First 5 of 354 rows.
Field descriptions
- utility
- Utility name as filed with EIA
- eia_id
- EIA utility identifier
- ownership
- Investor Owned, Cooperative, Municipal, and so on
- state
- USPS two-letter code for the served state
- rate_per_kwh
- Residential price, USD per kWh (revenue ÷ sales)
- avg_monthly_bill_usd
- Residential revenue ÷ customers ÷ 12
- residential_customers
- Residential customer count
- slug
- URL segment used on this site
Cite it like this
WattSimple, “Residential electricity rates by utility” (EIA-861, 2024). Source: US Energy Information Administration, Form EIA-861. https://wattsimple.com/data/utility-residential-ratesHousehold appliance wattage reference
Typical running and starting (surge) wattage for common household appliances, with a typical daily run time for cost estimates.
- Rows
- 143
- Period
- Typical values, not a measured survey
- Updated
- 2026-07-16
| appliance | category | running_watts | starting_watts | typical_hours_per_day |
|---|---|---|---|---|
| Refrigerator | Kitchen | 150 | 800 | 24 |
| Chest freezer | Kitchen | 100 | 600 | 24 |
| Microwave | Kitchen | 1000 | 1000 | 0.5 |
| Dishwasher | Kitchen | 1800 | 1800 | 1 |
| Electric range/oven | Kitchen | 3000 | 3000 | 1 |
First 5 of 143 rows.
Field descriptions
- appliance
- Appliance name
- category
- Room or function grouping
- running_watts
- Typical steady-state draw, watts
- starting_watts
- Startup surge, watts — equals running for resistive loads
- typical_hours_per_day
- Default run time used for cost estimates
Cite it like this
WattSimple, “Household appliance wattage reference” (Typical values, not a measured survey). Source: WattSimple, compiled from manufacturer specifications and DOE Energy Saver figures. https://wattsimple.com/data/appliance-wattageEV battery, range, and efficiency specs
Usable battery capacity, EPA range, efficiency in miles per kWh, and charging speeds for current US-market electric vehicles.
- Rows
- 73
- Period
- Current US model years
- Updated
- 2026-06-21
| make | model | trim | year | body_style | battery_kwh | epa_range_mi | efficiency_mi_per_kwh | dc_peak_kw | ac_onboard_kw | slug |
|---|---|---|---|---|---|---|---|---|---|---|
| Tesla | Model 3 | RWD | 2024 | Sedan | 57.5 | 272 | 4.7 | 170 | 11 | tesla-model-3 |
| Tesla | Model 3 | Long Range AWD | 2024 | Sedan | 75 | 341 | 4.5 | 250 | 11 | tesla-model-3-long-range |
| Tesla | Model Y | Long Range AWD | 2024 | SUV | 75 | 310 | 4.1 | 250 | 11 | tesla-model-y |
| Tesla | Model Y | RWD | 2024 | SUV | 60 | 260 | 4.3 | 170 | 11 | tesla-model-y-rwd |
| Tesla | Model Y | Performance AWD | 2024 | SUV | 75 | 279 | 3.7 | 250 | 11 | tesla-model-y-performance |
First 5 of 73 rows.
Field descriptions
- make
- Manufacturer
- model
- Model name
- trim
- Trim or variant, where it changes the specs
- year
- Model year the figures describe
- body_style
- Sedan, SUV, truck, and so on
- battery_kwh
- Usable battery capacity, kWh
- epa_range_mi
- EPA combined range, miles
- efficiency_mi_per_kwh
- EPA combined efficiency, miles per kWh
- dc_peak_kw
- Peak DC fast-charging power, kW
- ac_onboard_kw
- Onboard AC charger power, kW
- slug
- URL segment used on this site
Cite it like this
WattSimple, “EV battery, range, and efficiency specs” (Current US model years). Source: US EPA fuel economy ratings and manufacturer specifications. https://wattsimple.com/data/ev-efficiencyUS residential electricity prices by state, 1990 onward
Average annual residential electricity price for every state and DC since 1990, in nominal cents per kWh and in inflation-adjusted dollars of the latest year.
- Rows
- 1,820
- Period
- 1990–2024 annual
- Updated
- 2026-08-17
| abbr | year | nominal_cents_per_kwh | real_cents_per_kwh |
|---|---|---|---|
| AK | 1990 | 10.11 | 24.26 |
| AK | 1991 | 10.67 | 24.57 |
| AK | 1992 | 10.82 | 24.19 |
| AK | 1993 | 11.15 | 24.21 |
| AK | 1994 | 11.32 | 23.96 |
First 5 of 1,820 rows.
Field descriptions
- abbr
- USPS two-letter code, or US for the national average
- year
- Calendar year the price covers
- nominal_cents_per_kwh
- Average residential price that year, cents per kWh, as published by EIA
- real_cents_per_kwh
- Same price restated in 2024 dollars using the BLS CPI-U annual average
Cite it like this
WattSimple, “US residential electricity prices by state, 1990 onward” (1990–2024 annual). Source: US Energy Information Administration (Form EIA-861), deflated with US Bureau of Labor Statistics CPI-U. https://wattsimple.com/data/electricity-price-historyWhat we deliberately don't publish
The NEC ampacity, breaker, and conduit-fill tables that several of our reference pages are built on are absent here on purpose. NFPA holds copyright on the National Electrical Code, and packaging its tables as a redistributable dataset is a different act from citing them on a page. Read our NEC-derived reference pages here; get the tables themselves from NFPA.