In this complete DIY *solar street light installation guide**, I show you step-by-step how I'm **replacing my old electric street light* with a new, high-power solar-powered LED light. If you're looking for a great home improvement project for massive. So you are looking for a way to save money and go solar for your city or municipality; however, you don't know where to start. There are three main ways to retrofit an existing light to utilize solar. You can install a solar panel that feeds the grid during the day, you can take the system. Given the many choices available, finding the perfect solar LED street light can be daunting. While an electric street light pole might be able to be reused for a solar lighting system, the light fixture itself would need to be replaced to run on solar power.