Solar panel

solar systems/solar panels/solar battery:

Solar Systems is a world leader in electricity production from solar concentrator methods.
Conventional photovoltaic products use unconcentrated sunlight, or "1-sun" strength. This energy is quite diffuse so large panels of photovoltaic (PV) material must be used. This requires large amounts of silicon and expensive photovoltaic materials. As well, the panels are usually mounted in a fixed position as the cost of tracking the sun for optimum output is difficult to justify.