Solar pool covers allow natural sunlight to penetrate into the water and trap the energy so it can longer escape, naturally warming the water. Solar pool covers are an economical alternative to gas or electric heaters. On bright and sunny days you can expect to see water temperatures rise to nearly 15 degrees all without consuming any electricity. You will also enjoy using fewer chemicals that naturally evaporate over time. This includes chlorine. Solar pool covers effectively trap those chemicals in the water so not only are you warming your pool while saving on energy costs, but you are also reducing your chemical bill and helping out the environment a little bit. Solar pool covers are relatively easy to install and can be used season-after-season.