Final answer:
Grass clippings alone cannot power a home for 3 years. Renewable energy sources like solar power or wind power are commonly used for generating electricity in homes.
Step-by-step explanation:
It is not possible to power an entire home for 3 years with just a few bags of grass clippings. Grass clippings are biomass and can be used as fuel in small power plants, but they cannot generate enough energy to sustain a home's power needs. Instead, renewable energy sources like solar power or wind power are commonly used to generate electricity for homes. Solar power, for example, utilizes photovoltaic systems to convert sunlight into electricity. These systems can be connected to the electrical grid or have their own storage for excess production.
Learn more about Grass clippings and renewable energy sources