Lake Mills Light & Water electricity rates
Municipal utility · Wisconsin · MISO region · MISO
Lake Mills Light & Water is a city-owned municipal utility, governed locally rather than by the state commission, serving 4,134 homes in Wisconsin. Its residential customers pay an average of 15.00¢/kWh including fixed and delivery charges, 17% 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.
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Lake Mills Light & Water bill estimates
| Monthly use | At average all-in rate | Base tariff charges* |
|---|---|---|
| 500 kWh | $75.00 | $79.25 |
| 1,000 kWh | $150.00 | $141.50 |
| 1,500 kWh | $225.00 | $203.75 |
| 2,000 kWh | $300.00 | $266.00 |
*Rg-1 Residential Service Three Phase (effective 2015-07-01, $17.00/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.
Lake Mills Light & Water residential rate plans
| Plan | Effective | Customer charge | Energy charges |
|---|---|---|---|
| Rg-1 Residential Service Three Phase | 2015-07-01 | $17.00 | 12.45¢ |
| Rg-2 Residential Service Optional Time-of-Day Single Phase 8am-8pmtime-of-use | 2015-07-01 | $10.00 | 17.5¢ (8am–8pm) · 8.8¢ (12am–8am, 8pm–12am) — summer weekdays |
| Rg-2 Residential Service Optional Time-of-Day Three Phase 7am-7pmtime-of-use | 2015-07-01 | $17.00 | 17.5¢ (7am–7pm) · 8.8¢ (12am–7am, 7pm–12am) — summer weekdays |
| Rg-2 Residential Service Optional Time-of-Day Three Phase 8am-8pmtime-of-use | 2015-07-01 | $17.00 | 17.5¢ (8am–8pm) · 8.8¢ (12am–8am, 8pm–12am) — summer weekdays |
| Rg-2 Residential Service Optional Time-of-Day Three Phase 9am-9pmtime-of-use | 2015-07-01 | $17.00 | 17.5¢ (9am–9pm) · 8.8¢ (12am–9am, 9pm–12am) — summer weekdays |
| Rg-2 Residential Service Optional Time-of-Day Single Phase 7am-7pmtime-of-use | 2015-07-01 | $10.00 | 17.5¢ (7am–7pm) · 8.8¢ (12am–7am, 7pm–12am) — summer weekdays |
| Rg-2 Residential Service Optional Time-of-Day Single Phase 9am-9pmtime-of-use | 2015-07-01 | $10.00 | 17.5¢ (9am–9pm) · 8.8¢ (12am–9am, 9pm–12am) — summer weekdays |
| Rg-1 Residential Service Single Phase | 2015-07-01 | $10.00 | 12.45¢ |
Source: OpenEI U.S. Utility Rate Database. Rates change. Check the linked tariff or your bill for current figures.
Lake Mills Light & Water rate history
2015–2025: +7% change in the average residential rate (13.61¢ → 14.54¢). Annual EIA-861 data.
Outages & reliability
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Reliability history
Lake Mills Light & Water 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 Lake Mills Light & Water's counties, customers averaged 5 hr 22 min without power.
| County | Outage min/customer | Days with outages | Peak customers out | Worst day |
|---|---|---|---|---|
| Jefferson | 322 | 42 | 7,953 | 2025-03-15 |
Lake Mills Light & Water service area
Lake Mills Light & Water serves Jefferson County in Wisconsin and 1 ZIP codes.
Jefferson
Cities: Lake Mills, Aztalan, Milford
Programs, smart meters & solar
| Smart meters (AMI) for homes | 99% |
| Customers with daily usage data online | 4,089 |
| Time-based rate programs | Time-of-use rates |
| Homes on time-based rates | 12 |
| Net-metered solar homes | 32 |
Lake Mills Light & Water at a glance
| Ownership | Municipal utility |
| Services | Distribution |
| Commercial rate | 13.09¢/kWh |
| Retail revenue (2025) | $8,652,500 |
| Electricity sold (2025) | 63,667 MWh |
| Peak demand | 17 MW summer · 10 MW winter |
| Line losses | 4.6% |
| Balancing authority | MISO |
| EIA utility ID | 10605 |
Other utilities in Wisconsin
Frequently asked questions
What is Lake Mills Light & Water's electricity rate?
Lake Mills Light & Water residential customers pay an average of 15.00¢ 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 20% below the Wisconsin average of 18.74¢ and 17% below the U.S. average.
What is the average Lake Mills Light & Water electric bill?
About $94 a month. The average Lake Mills Light & Water home uses 625 kWh a month. At 1,000 kWh the bill would be about $150.
How many customers does Lake Mills Light & Water have?
Lake Mills Light & Water serves 4,134 residential customers and 4,618 customers in total in Wisconsin, across 1 county.
Does Lake Mills Light & Water offer time-of-use rates?
Yes. The OpenEI rate database lists 6 time-of-use residential plans, including Rg-2 Residential Service Optional Time-of-Day Single Phase 8am-8pm. Running big appliances off-peak can cut their cost. Pick the plan in the calculator above to see by how much.
Does Lake Mills Light & Water offer net metering for solar?
Lake Mills Light & Water had 32 residential net-metered customers in 2025 with 0.2 MW of capacity. Estimate solar savings at this utility's rate.
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 Lake Mills Light & Water before making decisions.