How FPL net metering works
Solar electricity supplies household loads as it is generated. When production exceeds the home’s immediate needs, surplus flows through a bidirectional meter into the grid. At other times, the home receives electricity from FPL.
The meter records electricity moving in both directions. On a standard residential arrangement, excess kilowatt-hours offset applicable energy purchases under FPL’s tariff. Fixed and minimum charges can still affect the amount due, and time-of-use customers should review their own rate schedule.
Three quantities explain the household energy balance: total solar production, grid imports, and grid exports. Electricity used directly from the panels stays behind the utility meter, which is why the monitoring app and the utility bill can report different figures without either being wrong.
Why the FPL bill can show less solar energy than the app
A monitoring app can show total array production while the FPL bill shows electricity exchanged with the grid. A home may consume much of its solar production before any electricity reaches the utility meter.
This invented billing-period example illustrates the distinction. Use matching service dates when comparing an app report with a bill; a calendar-month report and a utility billing period can otherwise appear to conflict.
Invented example for explanation only; not a customer result or production forecast.
| Energy measurement | Amount |
|---|---|
| Solar production shown by monitoring | 1,000 kWh |
| Solar electricity used directly in the home | 600 kWh |
| Solar electricity exported to FPL | 400 kWh |
| Electricity imported from FPL | 700 kWh |
| Total household electricity use | 1,300 kWh |
| Net grid energy before prior reserve | 300 kWh |
- The arithmetic is 700 kWh imported − 400 kWh exported = 300 kWh net grid energy.
- Total household use is 600 kWh directly used solar + 700 kWh imported = 1,300 kWh.
What happens to extra solar electricity
If a billing period leaves a surplus, FPL carries unused energy forward as a kilowatt-hour reserve. Later energy purchases can draw down that reserve during the same calendar year.
At the December meter read, unused reserve is credited to the bill under FPL’s applicable COG-1 treatment. That year-end settlement uses a different value from energy purchases offset within the year, so treating every generated kilowatt-hour as a full retail saving can overstate a proposal’s economics.
Illustrative monthly energy-bank sequence; other bill charges still apply.
| Billing period | Grid imports | Grid exports | Result before other charges |
|---|---|---|---|
| First period | 400 kWh | 500 kWh | Bank 100 kWh |
| Following period | 650 kWh | 450 kWh | Use 100 kWh reserve; 100 kWh remains to bill |
Will solar eliminate the FPL bill?
FPL currently lists a $30 minimum base bill for residential service. Applicable taxes and other charges can affect the amount due. A solar estimate should forecast the remaining utility bill, not only the array’s production.
Compare total household energy spending: remaining FPL bill + solar loan, lease, or PPA payment + applicable service costs. A lower utility bill does not automatically mean lower total energy spending if a financing payment is separate.
Assumptions only. This is not a market quote, rate forecast, or savings guarantee.
| Monthly expense | Before solar | Solar contract A | Solar contract B |
|---|---|---|---|
| FPL bill | $220 | $40 | $40 |
| Solar payment | $0 | $145 | $180 |
| Combined utility and solar payments | $220 | $185 | $220 |
| Difference from original bill | $0 | $35 lower | $0 |
System size, FPL tiers, and proposal review
FPL’s published guidelines require estimated production to be less than 115% of annual electricity consumption for qualifying net-metering interconnection. If documented annual use is 12,000 kWh, 115% equals 13,800 kWh; roof area alone does not establish the approved size.
For agreement purposes, FPL calculates gross AC rating as installed DC panel capacity × 0.85. The gross AC rating determines the tier—not the marketing panel rating, modeled annual production, or inverter output alone.
| FPL tier | Gross AC rating | Planning implication |
|---|---|---|
| Tier 1 | Up to and including 10 kW | Standard interconnection agreement requirements apply. |
| Tier 2 | Greater than 10 kW through 100 kW | Additional requirements include an application fee, qualifying disconnect, and $1 million liability coverage under FPL’s agreement. |
| Tier 3 | Greater than 100 kW through 2,000 kW | Commercial-scale requirements, including more extensive utility review, apply. |
- FPL states systems at 50 kW and above require three-phase WYE service for net-metering interconnection.
- Ask for 12 months of usage, modeled annual output, shading assumptions, tier calculation, and any planned EV, pool, or HVAC demand changes.
2026 incentives and a disciplined payback check
The IRS states that the Residential Clean Energy Credit is not available for property placed in service after December 31, 2025. A new 2026 homeowner proposal should not subtract a personal 30% federal credit unless a qualified tax professional identifies a separate, applicable rule.
Florida’s sales-and-use-tax exemption for qualifying solar energy systems is addressed in Section 212.08(7)(hh). Section 193.624 addresses qualifying renewable energy source devices in residential property assessment. Confirm applicability to the exact property and transaction with the responsible agency and a qualified tax professional.
For a cash comparison, begin with installed price and credible annual avoided spending, then test a lower-production scenario. A simple calculation omits financing, rates, equipment replacement, insurance, tax effects, and the time value of money; it is a check on assumptions, not a return promise.