Louisville Gas and Electric Company

LG&E's voluntary residential Time-of-Day Energy rate, called RTOD-Energy, is the main tool for EV owners who want to cut charging costs. It is an opt-in alternative to the standard residential Rate RS. On-peak hours change across five seasonal periods, not two: winter (January through the 2nd Saturday in March, and the 1st Sunday in November through December) runs weekdays 6 am to 10 am and 6 pm to 10 pm; the spring and fall DST-transition weeks (2nd Sunday in March through March 31, and November 1 through the 1st Saturday in November) shift to weekdays 7 am to 11 am and 7 pm to 11 pm; and summer proper (April through October) narrows to a single weekday window of 2 pm to 6 pm. All weekend hours are off-peak year-round. Charging an EV overnight, or midday during the summer season, lands in the off-peak window, which is the point of the rate. The program is capped at 500 participants combined across LG&E and KU, accepted first-come, first-served, and is best suited to drivers who can shift most charging out of whichever peak window applies for the current season.

LG&E does not pay a rebate for purchasing or installing a home Level 2 charger; its residential ENERGY STAR rebates cover HVAC equipment, not EV chargers. The EV-specific incentive is the Optimized EV Charging managed-charging program, which pays $25 at enrollment and $5 per month to residential customers who let the utility optimize charging through a qualifying Level 2 smart charger or compatible EV. The RTOD-Energy rate and the Optimized EV Charging program can be used independently. LG&E's commercial EV offering is a turnkey hosting arrangement where the business pays installation and monthly hosting fees, not a rebate.

LG&E is an integrated investor-owned utility in a traditionally regulated state; the Kentucky PSC sets its rates through contested rate cases rather than through a competitive retail market. LG&E and its sibling utility KU share the lge-ku.com site and nearly identical program designs, but they file separately: LG&E's current rates come from PSC Case No. 2025-00114, settled in February 2026 and effective January 1, 2026. LG&E serves the Louisville metro and nearby counties, while KU serves other parts of Kentucky.