Grundy County Rural Electric Co-op electricity rates
Electric cooperative · Iowa
Grundy County Rural Electric Co-op is a member-owned electric cooperative, so its customers own it and elect its board, serving 0 homes in Iowa. Its residential customers pay an average of 10.80¢/kWh including fixed and delivery charges, 40% less than the U.S. average.
Rate basis: EIA-861 2025 annual data, adjusted to the 12 months ending 2026-07 using the state's price trend. This utility files EIA's short form, which reports total sales only, so the rate covers all customer classes.
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Grundy County Rural Electric Co-op bill estimates
| Monthly use | At average all-in rate | Base tariff charges* |
|---|---|---|
| 500 kWh | $54.00 | $94.70 |
| 1,000 kWh | $108.00 | $153.24 |
| 1,500 kWh | $162.00 | $201.04 |
| 2,000 kWh | $216.00 | $248.84 |
*Single Phase Farm and Residential (effective 2013-01-01, $29.00/month customer charge), energy and fixed charges from the OpenEI Utility Rate Database. Riders, fuel adjustments and taxes are often billed separately, so real bills usually land closer to the all-in column. Calculate your bill.
Grundy County Rural Electric Co-op residential rate plans
| Plan | Effective | Customer charge | Energy charges |
|---|---|---|---|
| Single Phase Farm and Residential | 2013-01-01 | $29.00 | 13.14¢ first 800 kWh, 9.56¢ after |
Source: OpenEI U.S. Utility Rate Database. Rates change. Check the linked tariff or your bill for current figures.
Grundy County Rural Electric Co-op rate history
2015–2025: -22% change in the average residential rate (13.53¢ → 10.49¢). Annual EIA-861 data.
Outages & reliability
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Reliability history
| 2019 | Grundy County Rural Electric Co-op | Iowa avg | U.S. avg |
|---|---|---|---|
| Outage minutes per customer (SAIDI) | 62 | 149 | 266 |
| Outages per customer (SAIFI) | 0.86 | 1.03 | 1.34 |
| Average restoration time (CAIDI) | 73 min | — | — |
| Outage minutes excluding major storms | 62 | 78 | 121 |
Outages in counties served (2025)
From ORNL EAGLE-I, which tracks customers without power every 15 minutes. These counts cover every utility in each county. Weighted across Grundy County Rural Electric Co-op's counties, customers averaged 3 hr 51 min without power.
| County | Outage min/customer | Days with outages | Peak customers out | Worst day |
|---|---|---|---|---|
| Butler | 845 | 18 | 3,840 | 2025-07-29 |
| Marshall | 315 | 40 | 5,131 | 2025-03-17 |
| Grundy | 258 | 19 | 613 | 2025-06-20 |
| Hardin | 220 | 12 | 3,393 | 2025-08-15 |
| Tama | 202 | 31 | 1,403 | 2025-09-23 |
| Black Hawk | 160 | 29 | 12,895 | 2025-07-30 |
Grundy County Rural Electric Co-op service area
Grundy County Rural Electric Co-op serves 6 counties in Iowa.
Black Hawk, Butler, Grundy, Hardin, Marshall, Tama
Programs, smart meters & solar
| Smart meters (AMI) for homes | 100% |
| Time-based rate programs | None reported |
| Net-metered solar homes | 0 reported |
Grundy County Rural Electric Co-op at a glance
| Ownership | Electric cooperative |
| Services | — |
| Retail revenue (2025) | $9,703,000 |
| Electricity sold (2025) | 92,500 MWh |
| Balancing authority | MISO |
| EIA utility ID | 7864 |
Other utilities in Iowa
Frequently asked questions
What is Grundy County Rural Electric Co-op's electricity rate?
Grundy County Rural Electric Co-op residential customers pay an average of 10.80¢ per kWh, all charges included (EIA-861 2025 annual data, adjusted to the 12 months ending 2026-07 using the state's price trend). That's 24% below the Iowa average of 14.13¢ and 40% below the U.S. average.
What is the average Grundy County Rural Electric Co-op electric bill?
EIA doesn't publish residential sales for Grundy County Rural Electric Co-op.
How many customers does Grundy County Rural Electric Co-op have?
Grundy County Rural Electric Co-op serves 0 residential customers and 2,265 customers in total in Iowa, across 6 counties.
How reliable is Grundy County Rural Electric Co-op?
In 2019, the average Grundy County Rural Electric Co-op customer was without power for 62 min (SAIDI) over 0.86 interruptions (SAIFI), including major storms. Excluding major event days it was 62 min. The Iowa average was 2 hr 29 min and the U.S. average 4 hr 26 min.
Sources: EIA-861 2025 and EIA-861M (through July 2026), OpenEI URDB, ORNL EAGLE-I, U.S. Census. Methodology. Spot an error? Rates change often, so confirm with Grundy County Rural Electric Co-op before making decisions.