Cooperative utility · · WI
Rock Energy Cooperative
In 2025, the average Rock Energy Cooperative customer in Illinois was without power for 16 minutes (16 min).
Outage minutes per customer 16min 2025, including major storms
Excluding major storm days 15min The everyday reliability of the network
Outages per customer a year 0.40 SAIFI, 2025
Residential price 14.9¢/kWh 2025
Reliability
Minutes in the dark, year by year
Average minutes without power per customer in Illinois (SAIDI), with and without major event days, against the median Illinois utility.
Price
Residential cents per kWh
Revenue from full-service residential customers divided by their sales, as reported to the EIA.
Source: U.S. Energy Information Administration, Form EIA-861, 2018–2025. Reliability uses the IEEE 1366 standard where the utility reports it. Residential customers in 2025: 16,830.