H-D Electric Co-op electricity rates
Electric cooperative · South Dakota
H-D Electric Co-op is a member-owned electric cooperative, so its customers own it and elect its board, serving 0 homes in South Dakota. Its residential customers pay an average of 11.63¢/kWh including fixed and delivery charges, 35% 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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H-D Electric Co-op bill estimates
| Monthly use | At average all-in rate | Base tariff charges* |
|---|---|---|
| 500 kWh | $58.15 | -$13.90 |
| 1,000 kWh | $116.30 | -$27.80 |
| 1,500 kWh | $174.45 | -$41.70 |
| 2,000 kWh | $232.60 | -$55.60 |
*Electric Heat Rate (effective 2012-06-01), 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.
H-D Electric Co-op residential rate plans
| Plan | Effective | Customer charge | Energy charges |
|---|---|---|---|
| Electric Heat Rate | 2012-06-01 | — | -2.78¢ |
| General Service | 2012-06-01 | $21.00 | 10.50¢ first 1,000 kWh, 7.50¢ after |
Source: OpenEI U.S. Utility Rate Database. Rates change. Check the linked tariff or your bill for current figures.
H-D Electric Co-op rate history
2015–2025: +2% change in the average residential rate (10.72¢ → 10.96¢). Annual EIA-861 data.
Outages & reliability
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Reliability history
| 2019 | H-D Electric Co-op | South Dakota avg | U.S. avg |
|---|---|---|---|
| Outage minutes per customer (SAIDI) | 60 | 257 | 266 |
| Outages per customer (SAIFI) | 1.02 | 1.24 | 1.34 |
| Average restoration time (CAIDI) | 59 min | — | — |
| Outage minutes excluding major storms | 60 | 63 | 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 H-D Electric Co-op's counties, customers averaged 73 min without power.
| County | Outage min/customer | Days with outages | Peak customers out | Worst day |
|---|---|---|---|---|
| Clark | 468 | 11 | 1,953 | 2025-06-11 |
| Deuel | 376 | 23 | 1,039 | 2025-02-13 |
| Grant | 312 | 13 | 1,916 | 2025-04-07 |
| Hamlin | 174 | 14 | 930 | 2025-06-28 |
| Brookings | 49 | 14 | 434 | 2025-11-18 |
| Codington | 7 | 6 | 330 | 2025-12-10 |
H-D Electric Co-op service area
H-D Electric Co-op serves 6 counties in South Dakota and 10 ZIP codes.
Brookings, Clark, Codington, Deuel, Grant, Hamlin
Cities: Clark
Programs, smart meters & solar
| Smart meters (AMI) for homes | 100% |
| Time-based rate programs | None reported |
| Net-metered solar homes | 0 reported |
H-D Electric Co-op at a glance
| Ownership | Electric cooperative |
| Services | — |
| Retail revenue (2025) | $16,032,000 |
| Electricity sold (2025) | 146,213 MWh |
| Balancing authority | SWPP |
| EIA utility ID | 7870 |
Other utilities in South Dakota
Frequently asked questions
What is H-D Electric Co-op's electricity rate?
H-D Electric Co-op residential customers pay an average of 11.63¢ 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 18% below the South Dakota average of 14.20¢ and 35% below the U.S. average.
What is the average H-D Electric Co-op electric bill?
EIA doesn't publish residential sales for H-D Electric Co-op.
How many customers does H-D Electric Co-op have?
H-D Electric Co-op serves 0 residential customers and 3,873 customers in total in South Dakota, across 6 counties.
How reliable is H-D Electric Co-op?
In 2019, the average H-D Electric Co-op customer was without power for 60 min (SAIDI) over 1.02 interruptions (SAIFI), including major storms. Excluding major event days it was 60 min. The South Dakota average was 4 hr 17 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 H-D Electric Co-op before making decisions.