Photovoltaics

1. an electrical subset of a PV array.
7. the point in the sky directly overhead a particular location.
9. system a photovoltaic system that operates in parallel with and may deliver power to an electrical production and distribution network.
11. Equipment that controls dc voltage or dc current, or both, used to charge a battery.
12. equipment that is used to change voltage level or waveform, or both, of electrical energy.
13. the condition of something connected to the earth or a conductive material that is connected to the earth.
15. a device used to isolate electrical equipment and conductors from sources of electricity for the purpose of installation, maintenance or service.
18. a complete, environmentally protected unit consisting of solar cells, optics, and other components, designed to generate dc power when exposed to sunlight.
19. a system comprised of multiple power sources.
20. a collection of modules mechanically fastened together, wired and designed to provide a field-installable unit.
21. the basic photovoltaic device that generates electricity when exposed to light.

2. a device that converts AC power to DC power.
3. a bladed shaft that converts fluid flow into rotating mechanical energy.
4. the current that a conductor can carry continuously tinder the conditions of use without exceeding its temperature rating.
5. a static structural load due to the weight of accumulated snow.
6. a thin flat disk or rectangle of base semiconductor material.
8. A diode used to block reverse flow of current into a photovoltaic source circuit.
10. A mechanically integrated assembly of modules or panels with a support structure and foundation, tracker, and other components, as required, to form a direct-current power producing unit.
14. a company that produces and/or distributes electricity to customers in a certain region or state.
16. the accumulation of dust and dirt on an array of surface that shades the array and inhibits the production of electricity.
17. the production of electric current at the junction of two substances exposed to light.