Interstate Power and Light Co electricity rate plans
6 residential rate plans from Interstate Power and Light Co. Each page breaks down peak hours, off-peak windows, and per-kWh prices. 4 are time-of-use plans.
| Plan | Type | Peak hours | Peak / off-peak |
|---|---|---|---|
| Electric Residential Service Optional Demand - 507 | Time-of-use | 7 a.m.–8 p.m. | 13¢ / 9¢ |
| Electric Residential Service Usage - 400 | Tiered | — | 18¢ |
| Electric Residential Service Usage - 400 [Net Metering Pilot] | Tiered | — | 17¢ |
| Electric Residential Service Usage Time of Day - 407 | Time-of-use | 7 a.m.–8 p.m. | 23¢ / 12¢ |
| Optional Residential Service Demand Rate Rd-1 (Wisconsin) | Time-of-use | 5 p.m.–9 p.m. | 16¢ / 7¢ |
| Optional Residential Time of Use Rg-5 (Wisconsin) | Time-of-use | 5 p.m.–9 p.m. | 18¢ / 7¢ |
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Data last updated June 18, 2026. Compiled by Energy Advisor from published utility tariffs.