Illinois · Retail Power Marketer
Spark Energy, LP
19.60¢ per kWh, energy only, EIA-861 2025. Average bill $107.65 at 549.3 kWh a month, across 12,842 customers on that row.
Illinois averaged 17.67¢/kWh and $126.59 a month. The United States averaged 17.23¢/kWh and $150.68. State and national figures come from EIA's Average Bill file.
Revenue divided by sales, EIA-861 Sales to Ultimate Customers, 2025, released October 7, 2026. Texas wires utilities come from the Delivery Companies file. The price and bill use energy only service. Customer count: 12,842, the largest residential count across service types.
Estimate a bill
The figure below is this utility's 2025 EIA residential average.
2025 EIA average
$196.00
19.60¢/kWh × 1,000 kWh. Energy only residential average, EIA-861 2025. The customer charge is already folded into this average, so it stands beside a tariff total rather than being added to it.
Annual history
| Year | ¢/kWh | Avg. bill | Avg. kWh | Customers |
|---|---|---|---|---|
| 2015 | 10.56¢ | $57.04 | 539.9 | 48,355 |
| 2016 | 10.77¢ | $62.77 | 582.9 | 37,405 |
| 2017 | 11.22¢ | $68.91 | 614.1 | 31,653 |
| 2018 | 13.58¢ | $91.84 | 676.3 | 32,106 |
| 2019 | 14.26¢ | $81.67 | 572.9 | 49,230 |
| 2020 | 14.08¢ | $80.39 | 570.9 | 41,599 |
| 2021 | 14.67¢ | $79.33 | 540.7 | 32,380 |
| 2022 | 17.64¢ | $107.68 | 610.3 | 21,472 |
| 2023 | 18.73¢ | $95.75 | 511.2 | 18,592 |
| 2024 | 19.20¢ | $102.86 | 535.7 | 15,356 |
| 2025 | 19.60¢ | $107.65 | 549.3 | 12,842 |
EIA-861, 2015–2025, using the same service type as the 2025 figure. A blank year means that service was not in the file.
Counties
EIA's 2025 service-territory file does not list counties for this utility.
EIA-861 Service Territory, 2025. A listed county is the county EIA recorded. It does not mean every address in the county is served. Open this utility in the bill calculator · Rate history tool