Solar pool heaters are a cost-effective way to heat your pool. ... store energy in batteries for portable electricity, and even heat your pool. Yes, you read that correctly.

Best portable solar panel: EF ECOFLOW 220-Watt Bifacial Foldable Solar Panel Best mounted solar panel: Renogy 200-Watt 12-Volt Monocrystalline Solar Panel Starter Kit Best solar pool heater ...