HomeWattCost

Louisville Gas and Electric rates

LG&E has 2 residential plans modelled here. For a typical Kentucky home using 1,107 kWh a month, the cheapest is RTOD-Energy, at about $142 a month.

Investor-owned 384,902 residential customers (EIA-861, 2024) Tariffs checked September 28, 2026

Typical all-in priceRTOD-Energy

01234567890123456789.0123456789¢/kWh
RS$144/mo
RTOD-Energy$142/mo

Residential plans

PlanTypeFixed/moJuly pricesJanuary pricesJuly weekday windows
RS
Residential Service
Flat $14.54 11.7¢ all hours 11.7¢ all hours None
RTOD-Energy
Residential Time-of-Day Energy
Time-of-use $14.54 Off-peak 9.5¢ · Peak 19.4¢ Off-peak 9.5¢ · Peak 19.4¢ Peak 2 pm–6 pm

RTOD-Energy: price by hour

July weekday. Summer pricing Apr–Oct; winter Nov–Feb.

Off-peakPeak
9.5¢19.4¢9.5¢12a3a6a9a12p3p6p9p12a

Charging an EV on LG&E

1,000 miles a month in a Tesla Model Y Long Range AWD (275 kWh from the wall, EPA 27.5 kWh/100 mi) at 7.2 kW, added to a typical Kentucky home’s use, on each plan’s cheapest start hour versus plugging in at 6 pm. Averaged over the year.

PlanBest startCharging, best startCharging from 6 pmWhole bill with EV
RSAny$32/mo$32/mo$176/mo
RTOD-Energy12 am$26/mo$33/mo$168/mo

With an EV charged at its best hour, the cheapest plan overall is RTOD-Energy. Compare plans on your own usage.

How LG&E’s plans work

RS (Residential Service). One price per kWh at every hour, all year: 11.7¢. Shifting use to other hours changes nothing on this plan; using less is the only lever. Fixed charge: $14.54 a month.

RTOD-Energy (Residential Time-of-Day Energy). Peak 2 pm–6 pm on July weekdays; 4 of 24 hours carry the top price of 19.4¢. The cheapest July weekday hour costs 9.5¢, so moving 1 kWh out of the top hours saves 9.9¢. January weekdays range from 9.5¢ to 19.4¢. Weekends follow a different schedule from weekdays. Fixed charge: $14.54 a month.

Prices on this page are all-in per kWh, before taxes: base rates, supply and every per-kWh rider in the utility’s current tariff sheets. Your bill shows them as separate lines, and riders can change between tariff revisions.

As a cross-check, LG&E billed its residential customers an average of 12.28¢ per kWh in 2024 (revenue ÷ sales, EIA-861). A plan taken from URDB is shown only if its all-in price is consistent with that figure, adjusted for Kentucky’s price change since.

Sources for each plan

PlanEffectiveSeasonsSolar exportsSource and status
RS
Transcribed from the utility’s tariff
August 31, 2026 Same pricing all year Not recorded in URDB Checked September 28, 2026
LG&E P.S.C. Electric No. 14 tariff (eff. 2/16/2026, Case 2025-00114), Sheets 5, 83-93 · LG&E 2026 Electric Monthly Billing Adjustments (Sep-26) · LG&E PGR report, Aug 2026 expense month · KY PSC press release 2/16/2026 (typical bill)
RTOD-Energy
Transcribed from the utility’s tariff
August 31, 2026 Summer pricing Apr–Oct; winter Nov–Feb Not recorded in URDB Checked September 28, 2026
LG&E P.S.C. Electric No. 14 tariff (eff. 2/16/2026, Case 2025-00114), Sheets 6-6.2, 83-93 · LG&E 2026 Electric Monthly Billing Adjustments (Sep-26) · LG&E PGR report, Aug 2026 expense month

Plans marked “Checked” were transcribed from the utility’s current tariff and rider sheets, all charges included, and are re-checked on the date shown in each file. Other plans come from the OpenEI U.S. Utility Rate Database (CC BY 4.0) and have not yet been checked line by line against the utility’s tariff. Always confirm the current rates on your utility’s website before switching plans.

Run the numbers on LG&E