The phrase "solar power" can refer to anything that is powered by the sun. Solar thermal utilizes radiant heat, whereas solar photovoltaics (abbreviated as PV) create electricity from sunshine.
Individual solar cells are created from a silicon wafer material. These cells are wired together- and protected in a glass module case- to create a solar panel. Solar panels are also called solar modules. A group of modules wired together are referred to as an array (or sometimes called a system).
To convert DC electricity to AC electricity, the solar PV array needs an inverter. An inverter creates a regulated, high-quality type of electricity that US homes use, and that energy grids require for interconnection.