A well-planned retrofit can reduce peak-time costs, keep your home powered during outages, and increase the lifespan and value of your existing solar system. Here's a step-by-step guide for Retrofitting Solar to help you do it right, along with some common pitfalls to avoid. Retrofitting is the industry term for upgrading or expanding an. . Already have rooftop solar and considering adding batteries and/or switching to microinverters? That's a smart move. It takes a little planning and know-how, but the payoff is worth it. Evaluate existing components, 2.
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