Lake Mills Light & Water Electricity Rate per kWh (2024 EIA Data)
Municipal|EIA utility 10605|Wisconsin|Bundled
In 2024, Lake Mills Light & Water's residential customers paid an average of 13.86 cents per kWh: $4.2 million of revenue over 30,030 MWh of sales across 4,124 bundled residential customers, as reported to EIA on Form 861.
How the 13.86c figure is calculated
13.86c/kWh = $4,163k revenue / 30,030 MWh x 100. This is EIA's average realised price for 2024: everything Lake Mills Light & Water billed its residential customers (energy, delivery, fuel and rider charges, fixed charges) divided by the kilowatt-hours it sold. It is not a tariff rate, and a 2024 annual average will differ from a current bill. For a 1,000 kWh month at this average, the energy cost works out to about $139 before taxes.
About Lake Mills Light & Water's 2024 electricity prices
Lake Mills Light & Water is a municipally owned electric utility that reports to the U.S. Energy Information Administration under utility number 10605. In 2024 it served 4,124 bundled residential customers in Wisconsin, and its average realised residential price was 13.86 cents per kWh: $4.2 million of residential revenue divided by 30,030 MWh of residential sales.
Across the other sectors, Lake Mills Light & Water's 2024 average prices were 12.03 cents for commercial customers (456 accounts).
Within Wisconsin, Lake Mills Light & Water ranked number 37 of 66 utilities with bundled or delivery service by residential accounts served (4,124) and accounted for 0.14% of the state's residential electricity sales in 2024, measured in MWh sold or delivered rather than in customers. The state-wide average realised residential price in 2024, computed from the same EIA file, was 17.18 cents per kWh, so Lake Mills Light & Water's customers paid 3.32 cents below the Wisconsin average (-19.3%). For context, EIA's latest monthly figure for Wisconsin is 19.56 cents per kWh (June 2026, Electric Power Monthly); that is a different, more recent measure across all utilities and is not directly comparable with a 2024 annual average.
EIA's service-territory file places Lake Mills Light & Water in 1 Wisconsin county: Jefferson. On the grid side it operates in the MISO NERC region and the MISO market, and reported distribution as its activities. Balancing authority code: MISO.
Lake Mills Light & Water is not among the utilities included in EIA's preliminary 2025 early release, so the 2024 final data is the most recent figure available for it.
The nearest other utilities in Wisconsin by service-territory centroid are Jefferson Utilities (0 miles away, 11.87 cents), Waterloo Light & Water Comm (0 miles away, 13.92 cents), Oconomowoc Utilities (23.7 miles away, 13.75 cents), City of Stoughton (WI) (25.9 miles away, 12.60 cents), and Hustisford Utilities (29 miles away, 13.82 cents).
| Sector | Customers | Sales (MWh) | Revenue ($k) | Avg c/kWh |
|---|---|---|---|---|
| Residential | 4,124 | 30,030 | 4,163 | 13.86 |
| Commercial | 456 | 32,955 | 3,964 | 12.03 |
Counties served in Wisconsin (1)
From the EIA-861 Service Territory file; a listed county can be served in part only.
Nearby and comparable utilities in Wisconsin
- EIA utility number
- 10605
- Ownership type
- Municipal
- Data year
- 2024 final (EIA-861)
- Primary state
- Wisconsin
- Service type
- Bundled (Part A)
- Bundled residential customers (WI, price basis)
- 4,124
- Residential accounts served (WI)
- 4,124
- All accounts, all sectors (WI)
- 4,580
- Residential price, 2024
- 13.86 c/kWh
- Commercial price, 2024
- 12.03 c/kWh
- Residential sales
- 30,030 MWh
- Residential revenue
- $4.2 million
- Rank in Wisconsin by residential accounts served
- 37 of 66
- Share of Wisconsin residential sales (MWh, not customers)
- 0.14%
- Wisconsin average, 2024
- 17.18 c/kWh
- Counties served (WI)
- 1
- NERC region
- MISO
- RTO / ISO
- MISO
- Balancing authority
- MISO
- Reported activities
- Distribution
- Registry status
- Reported on Form EIA-861 for 2024
Realised price times usage; fixed charges are already inside the average. Bill calculator ->
Annual averages hide seasonal and tariff differences. Diagnose a high bill or model time-of-use pricing.
Bill Diagnostic ->Time-of-Use Guide ->Source: U.S. Energy Information Administration, Form EIA-861 Annual, 2024 final data (public domain), retrieved 28 August 2026; prices are average realised revenue per kWh, not tariffs. Final 2024 file f8612024.zip (released 3 December 2025) from the EIA-861 detailed data files. Preliminary 2025 figures come from the early-release file f8612025er.zip (4 August 2026), which EIA has not yet validated; they are labelled as such wherever shown and never mixed into a final figure.
Method: cents per kWh = revenue (thousand dollars) divided by sales (megawatthours), times 100. Customer counts, sales and revenue are the utility's own annual survey responses by state and sector. Bundled = energy plus delivery from one utility; delivery-only = the wires charge for customers who buy energy from a competitive supplier; energy-only = a competitive supplier's energy charge without delivery. County lists come from the EIA-861 Service Territory file; territory centroids used for "nearby utilities" are unweighted means of Census 2023 county centroids. EIA content is in the public domain (EIA copyright and reuse statement); the EIA logo is not used. Corrections: [email protected].