photovoltaics

1. a static structural load due to the weight of accumulated snow.
7. the condition of something connected to the earth or a conductive material that is connected to the earth.
9. system a photovoltaic system that operates in parallel with and may deliver power to an electrical production and distribution network.
10. the production of electric current at the junction of two substances exposed to light.
11. a system comprised of multiple power sources.
15. an electrical subset of a PV array.
18. A diode used to block reverse flow of current into a photovoltaic source circuit.
19. a collection of modules mechanically fastened together, wired and designed to provide a field-installable unit.
20. Equipment that controls dc voltage or dc current, or both, used to charge a battery.
21. the accumulation of dust and dirt on an array of surface that shades the array and inhibits the production of electricity.

2. 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.
3. a complete, environmentally protected unit consisting of solar cells, optics, and other components, designed to generate dc power when exposed to sunlight.
4. a thin flat disk or rectangle of base semiconductor material.
5. the current that a conductor can carry continuously tinder the conditions of use without exceeding its temperature rating.
6. the point in the sky directly overhead a particular location.
8. a company that produces and/or distributes electricity to customers in a certain region or state.
12. a device used to isolate electrical equipment and conductors from sources of electricity for the purpose of installation, maintenance or service.
13. a bladed shaft that converts fluid flow into rotating mechanical energy.
14. equipment that is used to change voltage level or waveform, or both, of electrical energy.
16. a device that converts AC power to DC power.
17. the basic photovoltaic device that generates electricity when exposed to light.