The real powerhouse in CSP plants is focused sunlight. CSP plants generate electric power by using mirrors to concentrate (focus) the sun's energy and convert it into high-temperature heat. The amount of power generated by a concentrating solar power plant depends on the amount of direct sunlight at the site. CSP technologies make use of only direct-beam (rather than diffuse) sunlight.
NASA's solar-powered aircraft Helios sets a new world altitude record for non-rocket-powered craft: 96,863 feet (more than 18 miles up).
Solar Power has great advantages, but it costs a lot upfront. Solar radiance maps are a good starting point (see below). Solar Impulse is a plane, headed around the world using only solar power!!!
