Electric bill decoder
111utilities whose residential tariff you can decode, from the OpenEI database
Pick your utility and plan, then type the kWh and the total from one bill. The decoder prices the tariff at that use, reads each line and flags what looks off. At 1,000 kWh the main plans run from $88 (Florida Keys El Coop Assn, Inc) to $439 (Arizona Public Service Co).
Decode your bill
Loading the tariffs.
What the decoder checks
Every flag comes from a fixed rule, shown here, applied to the tariff record and the numbers you type. Nothing is sent from your browser.
| Check | Rule | How it reads |
|---|---|---|
| Bill against tariff | Within 5% of the tariff total | OK |
| Bill against tariff | 5% to 20% above | Note: riders and taxes usually explain it |
| Bill against tariff | More than 20% above | Check: ask the utility for the line list |
| Bill against tariff | More than 20% below | Check: other plan, credit or wrong kWh |
| Fixed charge | Off by more than 10% or $1 from the tariff | Check: you may be on another plan |
| Lines added up | Fixed, delivery, supply and taxes differ from the total by more than 3% or $1 | Check: a line is missing |
| State average | Your all-in price more than 30% above or below the EIA 2025 state home average | Check: low use or wrong figures |
Worked examples at 1,000 kWh
Bill totals below are made up to show the reading; the tariff column is computed from the record. They are not real customers.
| Utility | Plan | Example bill | Tariff total | Gap | Reading |
|---|---|---|---|---|---|
| Florida Keys El Coop Assn, Inc | Rate Code 1 - Residential Service | $87.63 | $87.63 | -0% | OK |
| Florida Keys El Coop Assn, Inc | Rate Code 1 - Residential Service | $103.41 | $87.63 | +18% | Note: riders and taxes |
| Austin Energy | Residential | $130.22 | $130.22 | -0% | OK |
| Austin Energy | Residential | $153.66 | $130.22 | +18% | Note: riders and taxes |
| Georgia Power Co | SCHEDULE R-30 RESIDENTIAL SERVICE | $159.95 | $159.95 | +0% | OK |
| Georgia Power Co | SCHEDULE R-30 RESIDENTIAL SERVICE | $188.74 | $159.95 | +18% | Note: riders and taxes |
What is in and what is left out
| Tariff type | Utilities | What the bill does |
|---|---|---|
| Flat | 36 | One energy rate for every kWh |
| Tiered | 51 | Rate steps up (or down) after set kWh |
| Seasonal | 13 | Rate differs by month |
| Time of use | 11 | Rate differs by hour |
The snapshot holds 846 open residential plans effective since 2023. 405 fit the model, 111 utilities have one with a plain name. Left out: 280 delivery-only tariffs, 66 with a demand charge, 75 priced per kWh per day, 16 mixing tiers and hours, and 4 with other gaps.
Every utility, with its main plan
| Utility | State | Type | Effective | Fixed | 500 kWh | 1,000 kWh | 2,000 kWh |
|---|---|---|---|---|---|---|---|
| Alabama Power Co | Alabama | tiered | 2026-01-01 | $16.00 | $89 | $159 | $297 |
| City of Huntsville | Alabama | tiered | 2026-02-01 | $17.23 | $72 | $126 | $239 |
| Arizona Public Service Co | Arizona | flat | 2026-02-01 | $11.01 | $225 | $439 | $866 |
| Mohave Electric Cooperative, Inc. | Arizona | tiered | 2023-02-23 | $24.31 | $66 | $114 | $224 |
| Salt River Project | Arizona | seasonal | 2026-01-01 | $20.00 | $79 | $138 | $257 |
| Trico Electric Cooperative Inc | Arizona | tiered | 2023-02-01 | $20.00 | $80 | $143 | $274 |
| Tucson Electric Power Co | Arizona | tiered | 2025-09-30 | $23.44 | $86 | $160 | $313 |
| Los Angeles Department of Water & Power | California | flat | 2025-01-01 | $2.30 | $114 | $225 | $448 |
| Pacific Gas & Electric Co. | California | time of use | 2026-03-27 | $24.13 | $201 | $377 | $730 |
| City of Colorado Springs | Colorado | time of use | 2025-10-01 | $19.65 | $77 | $134 | $248 |
| Mountain Parks Electric, Inc | Colorado | flat | 2025-01-01 | $38.32 | $102 | $165 | $292 |
| Public Service Co of Colorado | Colorado | seasonal | 2026-01-01 | $8.19 | $89 | $170 | $331 |
| San Miguel Power Assn, Inc | Colorado | time of use | 2026-01-01 | $33.00 | $103 | $172 | $311 |
| Groton Dept of Utilities | Connecticut | flat | 2025-04-01 | $26.50 | $95 | $163 | $299 |
| Duke Energy Florida, LLC | Florida | tiered | 2025-01-01 | $13.83 | $96 | $177 | $360 |
| Florida Keys El Coop Assn, Inc | Florida | flat | 2025-07-01 | $30.42 | $59 | $88 | $145 |
| Florida Power & Light Co | Florida | tiered | 2026-01-01 | $10.52 | $72 | $133 | $276 |
| JEA | Florida | tiered | 2025-09-30 | $19.25 | $76 | $133 | $264 |
| Orlando Utilities Comm | Florida | tiered | 2025-09-30 | $18.50 | $76 | $134 | $274 |
| City of Covington | Georgia | tiered | 2024-01-01 | $20.50 | $82 | $147 | $281 |
| City of La Grange | Georgia | tiered | 2024-07-01 | $30.00 | $67 | $103 | $183 |
| Georgia Power Co | Georgia | tiered | 2025-01-01 | $14.00 | $83 | $160 | $322 |
| Jackson Electric Member Corp | Georgia | tiered | 2026-01-01 | $31.00 | $75 | $121 | $217 |
| Sawnee Electric Membership Corporation | Georgia | tiered | 2025-01-02 | $26.85 | $65 | $102 | $167 |
| Tri-County Elec Member Corp (GA) | Georgia | tiered | 2025-03-01 | $40.00 | $93 | $145 | $266 |
| Hawaiian Electric Co Inc | Hawaii | tiered | 2026-03-01 | $15.41 | $196 | $382 | $772 |
| Kauai Island Utility Cooperative | Hawaii | flat | 2025-07-01 | $11.42 | $182 | $353 | $695 |
| Idaho Power Co | Idaho | tiered | 2025-02-01 | $15.00 | $95 | $177 | $349 |
| AES Indiana | Indiana | tiered | 2025-08-12 | $17.00 | $92 | $161 | $299 |
| Duke Energy Indiana, LLC | Indiana | tiered | 2026-01-01 | $13.70 | $98 | $168 | $293 |
| Interstate Power and Light Co | Iowa | seasonal | 2025-07-01 | $15.50 | $95 | $175 | $334 |
| Linn County REC | Iowa | time of use | 2023-04-01 | $27.00 | $80 | $133 | $240 |
| MidAmerican Energy Co | Iowa | tiered | 2024-09-27 | $8.50 | $60 | $111 | $190 |
| Evergy Kansas Central, Inc | Kansas | tiered | 2023-01-01 | $14.50 | $71 | $127 | $234 |
| Kenergy Corp | Kentucky | flat | 2026-03-01 | $22.00 | $86 | $150 | $279 |
| Kentucky Power Co | Kentucky | flat | 2025-03-31 | $21.20 | $87 | $153 | $284 |
| Kentucky Utilities Co | Kentucky | flat | 2025-03-03 | $13.69 | $123 | $231 | $449 |
| Louisville Gas & Electric Co | Kentucky | flat | 2025-12-01 | $22.81 | $75 | $127 | $230 |
| Cleco Power LLC | Louisiana | tiered | 2025-07-01 | $16.00 | $84 | $152 | $301 |
| Entergy Louisiana LLC | Louisiana | flat | 2026-03-02 | $11.99 | $52 | $93 | $173 |
| Entergy New Orleans, LLC | Louisiana | tiered | 2025-06-01 | $8.07 | $60 | $110 | $205 |
| Southwestern Electric Power Co | Louisiana | tiered | 2025-10-30 | $9.42 | $68 | $125 | $237 |
| ALLETE, Inc. | Minnesota | flat | 2025-03-01 | $9.00 | $66 | $123 | $237 |
| Northern States Power Co - Minnesota | Minnesota | seasonal | 2025-01-01 | $6.00 | $87 | $168 | $330 |
| Rochester Public Utilities | Minnesota | time of use | 2023-01-01 | $20.50 | $70 | $119 | $218 |
| Entergy Mississippi LLC | Mississippi | tiered | 2025-07-01 | $31.82 | $82 | $127 | $219 |
| Mississippi Power Co | Mississippi | tiered | 2026-01-13 | $253.68 | $306 | $366 | $494 |
| Cuivre River Electric Coop Inc | Missouri | tiered | 2025-01-01 | $27.38 | $79 | $127 | $212 |
| Evergy Metro | Missouri | seasonal | 2026-02-01 | $14.25 | $63 | $112 | $209 |
| Evergy Missouri West | Missouri | tiered | 2025-08-01 | $12.90 | $73 | $127 | $235 |
| Ozark Border Electric Coop | Missouri | flat | 2025-04-01 | $39.09 | $86 | $134 | $228 |
| Union Electric Co | Missouri | tiered | 2024-09-30 | $9.00 | $67 | $120 | $215 |
| Missoula Electric Coop, Inc | Montana | time of use | 2023-03-01 | $28.00 | $81 | $135 | $242 |
| Lincoln Electric System | Nebraska | seasonal | 2025-01-01 | $47.00 | $77 | $106 | $166 |
| Omaha Public Power District | Nebraska | tiered | 2025-01-01 | $30.00 | $81 | $131 | $230 |
| Nevada Power Co | Nevada | flat | 2025-01-01 | $18.50 | $166 | $314 | $610 |
| Sierra Pacific Power Co | Nevada | flat | 2025-09-30 | $18.50 | $72 | $125 | $231 |
| Valley Electric Assn, Inc | Nevada | flat | 2024-01-01 | $35.00 | $108 | $180 | $325 |
| City of Vineland | New Jersey | tiered | 2023-01-01 | $7.00 | $93 | $168 | $318 |
| Public Service Co of NM | New Mexico | tiered | 2025-11-15 | $12.79 | $83 | $177 | $397 |
| Blue Ridge Elec Member Corp | North Carolina | seasonal | 2024-10-02 | $30.00 | $86 | $141 | $252 |
| Brunswick Electric Member Corp | North Carolina | time of use | 2025-11-01 | $35.00 | $85 | $134 | $234 |
| City of Concord | North Carolina | flat | 2025-06-30 | $18.00 | $67 | $116 | $214 |
| Duke Energy Carolinas, LLC | North Carolina | tiered | 2026-02-01 | $11.78 | $88 | $162 | $308 |
| EnergyUnited Elec Member Corp | North Carolina | seasonal | 2025-01-01 | $60.00 | $97 | $135 | $210 |
| Jones-Onslow Elec Member Corp | North Carolina | flat | 2025-04-22 | $26.00 | $77 | $129 | $232 |
| Randolph Electric Member Corp | North Carolina | tiered | 2025-05-01 | $37.50 | $101 | $164 | $287 |
| Roanoke Electric Member Corp | North Carolina | flat | 2025-01-01 | $45.00 | $119 | $194 | $342 |
| Oklahoma Gas & Electric Co | Oklahoma | seasonal | 2025-03-01 | $13.23 | $59 | $106 | $198 |
| Central Electric Coop Inc | Oregon | seasonal | 2023-01-01 | $28.16 | $64 | $100 | $172 |
| Aiken Electric Coop Inc | South Carolina | tiered | 2025-01-01 | $41.06 | $100 | $154 | $264 |
| Berkeley Electric Coop Inc | South Carolina | flat | 2025-01-01 | $45.62 | $85 | $124 | $203 |
| Dominion Energy South Carolina, Inc | South Carolina | tiered | 2024-09-01 | $9.50 | $98 | $187 | $366 |
| South Carolina Public Service Authority | South Carolina | time of use | 2025-04-01 | $20.00 | $94 | $168 | $316 |
| NorthWestern Energy | South Dakota | tiered | 2025-05-01 | $7.00 | $94 | $178 | $284 |
| City of Cleveland | Tennessee | flat | 2026-02-01 | $28.89 | $90 | $151 | $274 |
| City of Memphis | Tennessee | time of use | 2026-03-04 | $15.10 | $82 | $149 | $284 |
| Middle Tennessee E M C | Tennessee | flat | 2025-04-01 | $21.81 | $78 | $133 | $245 |
| Nashville Electric Service | Tennessee | seasonal | 2026-03-01 | $44.58 | $110 | $174 | $304 |
| Austin Energy | Texas | tiered | 2025-05-01 | $15.00 | $70 | $130 | $270 |
| City of San Antonio | Texas | tiered | 2024-02-01 | $9.50 | $54 | $102 | $198 |
| Denton County Elec Coop, Inc | Texas | flat | 2025-10-31 | $15.00 | $74 | $134 | $253 |
| El Paso Electric Co | Texas | tiered | 2025-01-01 | $9.25 | $71 | $135 | $262 |
| Entergy Texas Inc. | Texas | tiered | 2025-01-02 | $14.00 | $78 | $142 | $259 |
| Hamilton County Elec Coop Assn | Texas | flat | 2023-08-01 | $15.00 | $55 | $96 | $176 |
| Southwestern Public Service Co | Texas | seasonal | 2026-01-01 | $11.20 | $63 | $115 | $219 |
| City of Bountiful | Utah | tiered | 2025-06-30 | $15.37 | $69 | $135 | $266 |
| Lehi City Corporation | Utah | tiered | 2023-02-01 | $2.50 | $55 | $107 | $217 |
| PacifiCorp | Utah | tiered | 2025-06-01 | $12.16 | $68 | $137 | $274 |
| Green Mountain Power Corp | Vermont | flat | 2024-09-30 | $19.04 | $132 | $245 | $470 |
| Northern Virginia Elec Coop | Virginia | flat | 2025-01-01 | $21.30 | $73 | $124 | $227 |
| Rappahannock Electric Coop | Virginia | tiered | 2024-10-02 | $16.50 | $91 | $164 | $319 |
| Shenandoah Valley Elec Coop | Virginia | tiered | 2025-06-01 | $30.00 | $89 | $150 | $278 |
| Virginia Electric & Power Co | Virginia | tiered | 2026-01-01 | $7.58 | $89 | $169 | $322 |
| Avista Corp | Washington | tiered | 2026-01-01 | $10.00 | $73 | $140 | $296 |
| City of Seattle | Washington | flat | 2025-01-01 | $12.48 | $82 | $152 | $291 |
| City of Tacoma | Washington | flat | 2025-04-01 | $28.30 | $72 | $116 | $203 |
| Orcas Power & Light Coop | Washington | tiered | 2025-01-01 | $59.99 | $128 | $195 | $330 |
| PUD No 1 of Cowlitz County | Washington | flat | 2025-09-30 | $24.64 | $63 | $101 | $178 |
| PUD No 1 of Snohomish County | Washington | flat | 2025-03-31 | $14.90 | $66 | $118 | $220 |
| PUD No 3 of Mason County | Washington | flat | 2025-03-01 | $53.23 | $98 | $143 | $232 |
| Peninsula Light Company | Washington | tiered | 2025-04-01 | $37.00 | $76 | $117 | $199 |
| Puget Sound Energy Inc | Washington | tiered | 2025-02-01 | $7.49 | $80 | $159 | $323 |
| Monongahela Power Co | West Virginia | flat | 2025-07-15 | $6.00 | $72 | $137 | $269 |
| Northern States Power Co | Wisconsin | seasonal | 2024-01-01 | $15.00 | $85 | $156 | $296 |
| Superior Water and Light Co | Wisconsin | time of use | 2025-01-01 | $12.00 | $64 | $117 | $222 |
| Village of Waunakee | Wisconsin | flat | 2025-01-01 | $11.66 | $101 | $191 | $371 |
| Wisconsin Electric Power Co | Wisconsin | flat | 2025-05-31 | $15.00 | $113 | $211 | $407 |
| Wisconsin Power & Light Co | Wisconsin | flat | 2025-01-01 | $15.00 | $97 | $179 | $344 |
| Wisconsin Public Service Corp | Wisconsin | flat | 2025-01-01 | $17.92 | $89 | $161 | $304 |
| High West Energy, Inc | Wyoming | time of use | 2025-01-01 | $44.00 | $87 | $130 | $216 |
Sources and limits
- Tariffs: OpenEI Utility Rate Database, snapshot of 17 April 2026 (CC BY 4.0). Plans effective 2023 or later only; each page shows the date.
- State averages: EIA, home sector, 2025.
- Downloads: decode_tariffs.csv, decode_tariff_lines.csv, decode-plans.json.
The bill model: energy by tier or by hour share (weekday 5/7, weekend 2/7), plus the fixed charge, floored at the minimum bill. The month on your bill picks the season; without it the tool averages 12 months. A tariff can change after the snapshot, so confirm on the utility site.
Keep going
- Bill terms glossary
- State-level bill decoder
- All bill tools
- Time-of-use and tiered plans by utility
Questions
What do I type into the decoder?
The kWh used and the total due from one bill, and optionally the fixed charge, the delivery and supply lines and the taxes. The month on the bill sets the season.
Why is my bill higher than the tariff total?
Fuel adjustments, riders, taxes and fees are mostly outside the rate table. A gap of 5% to 20% is common, and the decoder says so; more than 20% is worth a call to the utility.
How many utilities does it cover?
111 utilities have a residential tariff effective 2023 or later that fits the bill model, out of 111 utilities counted among them; 405 plans in all.
How current are the tariffs?
The OpenEI snapshot is from 17 April 2026. Each plan shows its effective date, and the oldest here starts in 2023, so rates may have moved since.
Does the decoder store my numbers?
No. The calculation runs in your browser. The only request is the tariff file, which holds no personal data.