Path-Q Solar

How should a planned swimming pool be factored into my projected electricity use and solar system size?

Answer

Estimate the pool's future electricity use separately and add it to a representative household load profile rather than applying a generic adjustment. Include pumps, filtration, heating, lighting, controls, and expected operating schedules, with seasonal use modeled separately.

Key points

  • Pool heating can dominate energy use and may vary greatly by technology, climate, cover use, and desired temperature.
  • Pumps and filtration are usually schedule-based and may be shifted toward daylight.
  • A planned pool should be represented as a range if equipment and operating habits are not yet selected.
  • Solar sizing should distinguish pool energy that is expected to be used during production hours from energy used at other times.

What it depends on

  • Pool size and equipment specifications
  • Heating method and target operating conditions
  • Pump and filtration schedule
  • Climate, season of use, and proposed controls

Risks and trade-offs

  • Using a generic pool allowance can substantially overstate or understate demand.
  • Sizing for an unconfirmed heating system may commit the project to an assumption that later changes.
  • Daylight scheduling may improve direct solar use but must remain compatible with pool maintenance needs.

Information you may need

  • Pool and equipment plans
  • Pump, heater, and control specifications
  • Expected seasonal operating schedule
  • Whether the pool will be heated and how

Your next step

What to do next

Obtain equipment-level energy estimates from the pool designer or manufacturers, then model low, expected, and high-use scenarios.

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