Quick answer
FPL's optional time-of-use rate charges about 26 cents per kWh on peak and around 9 cents off peak, by FPL's estimate. From April through October, peak hours are weekdays noon to 9 p.m.; in winter, 6 to 10 a.m. and 6 to 10 p.m. It needs a one-year commitment. With solar, a battery can cover evening peak hours, but the savings are modest.
What are FPL's time-of-use hours?
| Season | On-peak (weekdays) | Off-peak |
|---|---|---|
| April 1 to October 31 | Noon to 9 p.m. | All other hours |
| November 1 to March 31 | 6 to 10 a.m. and 6 to 10 p.m. | All other hours |
Weekends and six named holidays are off-peak all day.
How much does FPL charge on and off peak?
FPL's own estimate is about 26 cents per kWh on peak and around 9 cents off peak, and it notes prices may vary by location. In the tariff, those are adjustments to the standard residential rate: in 2026, the base energy charge rises 14.410 cents per kWh on peak and falls 6.157 cents off peak, with a small fuel adjustment each way. The monthly base charge and $30 minimum bill stay the same.
Compare that with the standard rate in why your FPL bill is so high.
- On peak
- 26¢/kWh
- Off peak
- 9¢/kWh
What are the rules for FPL's time-of-use rate?
- It's optional and available across FPL's service area, with no extra charge to join.
- It needs a new meter, takes about three months to set up and has a one-year minimum term.
- You can't combine it with Budget Billing, the On Call program or FPL EVolution Home charging.
Does time-of-use work with solar and a battery?
Solar makes most of its power around midday, while FPL's summer peak runs until 9 p.m., so panels alone don't cover the expensive evening hours. A battery can: it can run the house from late afternoon through 9 p.m. FPL's net metering guidelines say battery energy is for your own use and can't be sent back to the grid.
Florida's net metering rule credits extra solar by the kWh each month and doesn't mention time-of-use periods. Ask FPL how credits apply on its time-of-use rate before you switch, and check that a year of your bills would actually come out lower. For most homes, a battery's main value is still hurricane backup. See whole-home battery backup and home battery cost in Florida.
How much energy does a battery lose when it shifts power?
Tesla lists the Powerwall 3's solar-to-battery-to-grid round-trip efficiency at 89%, so about a tenth of the energy you store is lost. On FPL's time-of-use rate, storing midday solar for the evening peak is worth the gap between peak and off-peak prices, minus that loss, and only on weekdays, since weekends and holidays are off-peak all day.
That's why time-of-use savings from a battery tend to be modest in Florida. Run a year of your own bills through both rates before you switch.
How does Tampa Electric's Energy Planner price power?
On Energy Planner (rate RSVP-1), the price depends on the time period rather than how much you use. Tampa Electric's January 2026 rate insert lists an energy charge of 8.462¢ per kWh at its P2 price tier, plus fuel at 3.516¢, and says the energy rate varies with the tier in effect. A 2025 filing with the Public Service Commission set the top, critical-price tier for 2026 at 41.34¢ per kWh.
Energy Planner doesn't work with net metering, so it only fits homes without solar.
What does Duke Energy Florida offer off peak?
For 2025, Duke Energy Florida renamed its time-of-use super off-peak period "discount," applied it to all days, and limited on-peak periods to weekdays. Duke also pays a $7.50 monthly bill credit per EV, for up to two, for Level 2 charging off peak: weekdays 10 a.m. to 6 p.m. and 11 p.m. to 5 a.m., and anytime on weekends and holidays.
The daytime window lines up with solar production, so a solar home can charge an EV midday and earn the credit. See solar and EV charging.
What about Duke Energy Florida and Tampa Electric?
Tampa Electric says its Energy Planner time-of-day program doesn't support net metering, so customers with solar move to the standard residential rate. Duke Energy Florida offers a residential time-of-use rate; confirm its current hours, prices and solar rules with Duke before enrolling.
We found no FPL, Duke Energy Florida or Tampa Electric program that pays homeowners to share their battery with the grid. See home batteries without solar.
Sources
- FPL: Time-of-use rates
- FPL: Electric tariff section 8, SolarTogether rider (Sept. 2026)
- FPL: Residential rates effective September 2026
- FPL: Net metering guidelines
- Florida Administrative Code Rule 25-6.065: Interconnection and net metering of customer-owned renewable generation
- Tampa Electric: Net metering and Energy Planner
- Tesla: Powerwall 3 installation manual, specifications
- Tampa Electric: Residential rates insert, January 2026
- Florida PSC: Tampa Electric RSVP-1 price tiers for 2026 (filing 10432-2025)
- Duke Energy Florida: Rate revisions for 2025
- WFTV: Duke Energy Florida EV drivers will get $7.50 monthly credit for off-peak charging (2025)
This guide is general information, not tax, legal or financial advice. Incentive programs change, so confirm current terms with your installer, your utility and a tax professional.
