Solar energy is the energy harnessed from the sun's rays. It is a renewable resource, meaning it can be replenished naturally and is sustainable over time. Solar energy can be converted into electricity or heat, making it useful for various applications, including powering homes, businesses, and even vehicles. There are two main technologies for capturing solar energy: photovoltaic (PV) cells, which convert sunlight directly into electricity, and solar thermal systems, which use sunlight to heat a fluid that can produce steam for electricity generation. Both methods contribute to reducing reliance on fossil fuels and lowering greenhouse gas emissions.