Pool Heat Pump Energy Estimator — Fort Myers, FL
New to this? See why SHEPH beats traditional solar pool heating →
Live energy model using Fort Myers NOAA climate normals. Updates in real time as you adjust inputs. Calculates monthly kWh, simulates 24-hour pool temperature for each month, and shows whether your pump schedule allows the heat pump to maintain your desired setpoint.
Surface area drives heat loss. Volume determines thermal mass and temperature swing over a 24-hour period.
The heat pump can only run while the circulation pump is running. Shorter pump schedules limit heating capacity in cold months and may prevent achieving your setpoint.
Wind is the #1 amplifier of evaporative loss. A screened enclosure can cut total heat loss by 40–60%.
Aerated surfaces dramatically increase evaporative heat loss. Click to toggle each feature on/off.
Desired pool temp each month. Uncheck months you do not want to heat. Fort Myers climate data (TMY3) shown for reference.
| Month | Avg Air | Humidity | Avg Wind | Daily Solar | Target Pool Temp | Heat? |
|---|
How and when you heat the pool is often the biggest variable in annual cost.
Size a PV array to offset heat pump electricity. Uses NSRDB irradiance data with a proper plane-of-array calculation (Liu-Jordan beam model + isotropic diffuse + Erbs split).
Bars = monthly kWh. Lines = target setpoint vs. simulated achieved temperature (daily high/low range). Click any month bar to drill into its 24-hour profile below.
Converged steady-state daily cycle for the selected month. Shaded = pump active. Dashed = setpoint. Yellow = what pool would be without heating.
All values are 24h averages from hourly simulation. Solar is zero at night — directly comparable to loss values.
Monthly comparison of heat pump kWh demand vs. solar panel array production. Surplus production shown above the consumption bar.
Running totals showing when the array's seasonal surplus builds up and when it gets drawn down. The gap between lines at year-end = net energy position; gap during the year = monthly bank balance.