Solar energy is a renewable energy resource that can be used to generate electricity and power through solar power plants. A solar power plant consists of photovoltaic panels that convert sunlight into direct current electricity, inverters that convert the current to alternating current, and energy storage devices like batteries. The photovoltaic panels are made up of interconnected solar cells, usually made of crystalline silicon, gallium, or arsenide, that produce electricity when photons hit the materials. Solar energy has advantages of being clean, renewable, and having no fuel costs, but also has disadvantages like high initial costs, expensive storage, and lower power production than other resources.