City of Groton electricity rates
Municipal utility · South Dakota
City of Groton is a city-owned municipal utility, governed locally rather than by the state commission, serving 737 homes in South Dakota. Its residential customers pay an average of 10.62¢/kWh including fixed and delivery charges, 41% 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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City of Groton bill estimates
| Monthly use | At average all-in rate | Base tariff charges* |
|---|---|---|
| 500 kWh | $53.10 | $70.00 |
| 1,000 kWh | $106.20 | $115.00 |
| 1,500 kWh | $159.30 | $160.00 |
| 2,000 kWh | $212.40 | $205.00 |
*Schedule A - Load Management Participating Residential Rates (effective 2013-01-16, $25.00/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.
City of Groton residential rate plans
| Plan | Effective | Customer charge | Energy charges |
|---|---|---|---|
| Schedule A - Load Management Participating Residential Rates | 2013-01-16 | $25.00 | 9.00¢ |
| Schedule B - Interruptible Power (House meter) (Dual Heat & Heat Storage Units) Rates | 2016-01-16 | $25.00 | 9.00¢ |
| Schedule C - HOUSE METER Geothermal/Heat Pump Rates | 2013-01-16 | $25.00 | 9.00¢ |
| Schedule C - HEAT METER Geothermal/Heat Pump Rates | 2013-01-16 | $25.00 | 8.00¢ |
| Schedule B - Interruptible Power (Heat meter) (Dual Heat & Heat Storage Units) Rates | 2013-01-16 | $25.00 | 5.00¢ |
Source: OpenEI U.S. Utility Rate Database. Rates change. Check the linked tariff or your bill for current figures.
City of Groton rate history
2015–2025: +23% change in the average residential rate (8.15¢ → 10.02¢). Annual EIA-861 data.
Outages & reliability
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Reliability history
City of Groton doesn't report reliability metrics to EIA (common for small utilities).
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 City of Groton's counties, customers averaged 112 min without power.
| County | Outage min/customer | Days with outages | Peak customers out | Worst day |
|---|---|---|---|---|
| Brown | 112 | 16 | 1,838 | 2025-10-29 |
City of Groton service area
City of Groton serves Brown County in South Dakota and 1 ZIP codes.
Brown
Cities: Aberdeen
Programs, smart meters & solar
| Smart meters (AMI) for homes | 100% |
| Time-based rate programs | None reported |
| Net-metered solar homes | 0 reported |
City of Groton at a glance
| Ownership | Municipal utility |
| Services | — |
| Retail revenue (2025) | $1,598,800 |
| Electricity sold (2025) | 15,963 MWh |
| Balancing authority | SWPP |
| EIA utility ID | 7712 |
Other utilities in South Dakota
Frequently asked questions
What is City of Groton's electricity rate?
City of Groton residential customers pay an average of 10.62¢ 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 25% below the South Dakota average of 14.20¢ and 41% below the U.S. average.
What is the average City of Groton electric bill?
About $192 a month. The average City of Groton home uses 1,805 kWh a month. At 1,000 kWh the bill would be about $106.
How many customers does City of Groton have?
City of Groton serves 737 residential customers in South Dakota, across 1 county.
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 City of Groton before making decisions.