10 Best Solar Swimming Pool Covers 2025 in the United States

The BigXwell Solar Pool Cover is designed to warm and protect in-ground pools by using its 16-mil thick polyethylene material with thousands of thermal bubbles that capture and retain solar heat efficiently. Its bright blue color and rectangular shape fit pools up to 16 by 32 feet, but it can also be trimmed to better suit other sizes or shapes, which adds flexibility. The cover floats on the water surface, making it simple to put on and remove without hassle.

A key benefit is its ability to reduce water evaporation by about 95%, helping you save water and reduce the need to refill frequently. The material is lightweight yet durable enough to withstand harsh weather, although being polyethylene, it may eventually show wear if exposed to strong sun or rough handling over time. Users appreciate the ease of use and heat retention, but keep in mind it’s best suited for summer use and may not replace a heater in colder climates.

The product provides a practical and cost-effective way to keep your pool temperature stable and reduce maintenance, especially if your pool matches the size range or you don’t mind trimming the cover to fit.

The Sun2Solar Blue 20 ft x 40 ft Rectangle Pool Solar Cover is designed for rectangular inground and above-ground pools. Made from durable resin material with a solid blue color, it offers good heat retention by using solar energy to warm the pool water by up to 15 degrees. Its bubble design traps heat effectively, helping maintain a consistent temperature even after sunset. This cover also reduces water evaporation by up to 95%, which saves water and reduces the need for chemicals.

Sized at 20 by 40 feet, it fits large pools and includes six heavy-duty grommets for secure placement, though trimming might be needed for pools with unusual shapes or features. Installation is straightforward, as it floats on the water and is lightweight, making it easy to put on and remove. One downside is that it requires hand washing to maintain, and as a floating cover, it doesn’t provide a full physical barrier like safety covers might.

While it prevents debris such as leaves from entering the pool, it’s not a substitute for a solid safety cover. It has a solid 4-star rating from users, making it a reliable choice for pool owners looking to extend their swimming season and save on water and heating costs without complicated installation.

The Sun2Solar Blue 16 ft x 32 ft Rectangle Solar Cover is a well-regarded option for those looking to retain heat in their swimming pools and reduce water evaporation. Made from durable polyethylene (PE), the cover is designed to trap heat effectively, raising the pool water temperature by up to 15 degrees and retaining warmth overnight. This is especially beneficial for extending the swimming season or enjoying warmer water without relying heavily on traditional heating methods.

Another significant advantage is its ability to prevent up to 95% of water evaporation, which not only conserves water but also reduces the need for chemical additives and pool maintenance time. The cover also helps keep leaves and debris out of the pool, ensuring it stays cleaner for longer periods between cleanings.

Measuring 16 feet by 32 feet, this rectangular cover is suitable for both inground and above ground pools of similar dimensions. The bubble design on the cover aids in heat retention and makes it lightweight enough for easy installation and removal. The blue color may not suit everyone's aesthetic preferences, but it is effective in absorbing and retaining heat. While some users have mentioned difficulty in handling and storage due to its size and weight, which is 26 pounds, its ability to float seamlessly and the additional overlap for a snug fit around pool edges and protrusions add to its ease of use.