Solar energy can replace household electricity by harnessing natural sunlight, utilizing photovoltaic systems, offering cost-effectiveness, contributing to reduced carbon emissions, and creating energy independence. Harnessing Natural Sunlight: Solar panels collect sunlight, converting it into. There are a number of steps to follow when planning to power your home with solar energy. After choosing which option is best for you to use solar (see step 3), follow the steps afterward that apply to you. Your solar energy installer and local utility company can provide more information on the. Solar energy can substitute fossil fuels, nuclear energy, and conventional electricity sources used in household and commercial settings, leading to 1. reduced greenhouse gas emissions, 2. technological advancements in energy storage. Solar electricity. Rooftop solar is often seen as a complete replacement for conventional electricity. While solar can significantly reduce grid dependency, it's important to understand what solar can realistically replace in a household, and what it cannot. Energy Information Administration. With electric utility rates climbing in.