Across
- 2. 1,000,000 watts.
- 5. spectrum, distribution of energy emitted by the sun arranged in order of wavelengths.
- 7. power, energy from the sun that is converted into thermal or electrical energy.
- 10. 1,000 watts.
- 11. current, an electric current that reverses direction at regular intervals.
- 13. current, an electric current in which electrons flow in one direction only.
- 15. measure of solar radiation energy received on a given surface area in a given time.
- 16. technology and research that relates to the application of solar cells for energy by converting radiant energy directly to electricity.
- 19. cell, solar cells produced from processed liquid silicon; when solidified, multiple silicon crystals are formed. Less efficient than monocrystalline cells.
- 21. a chemical element from which semiconductors are made.
- 22. unit of electrical resistance.
- 24. the unit of electric power, or amount of work (J), done in a unit of time. One ampere of current flowing at a potential of one volt produces one watt of power.
- 25. light from the sun; also called solar radiance.
- 28. single silicon crystal; monocrystalline panels are made from one large, single silicon crystal making it rated the most efficient solar technology available.
- 29. interconnected assembly of solar cells; also called a panel.
- 30. (verb) to add a power-absorbing device to an electrical circuit .
- 33. ratio of light reflected from a surface.
- 34. array, a solar array that follows the path of the sun to maximize the solar radiation incident on the photovoltaic surface.
- 35. height of the sun above the horizon.
- 38. insolation, solar radiance that is scattered or reflected by atmospheric components, such as clouds, dust, etc.
- 39. insolation, solar radiance that directly hits the earth’s surface.
- 40. potential energy that makes the electrical current flow in a circuit by pushing the electrons around (pressure).
Down
- 1. efficiency, useful power output divided by the total electrical power consumed.
- 3. photovoltaic modules connected together to provide a single electrical output.
- 4. box, protected enclosure for electrical wiring.
- 6. horizontal angle measured clockwise in degrees from a reference direction, usually the north or south point of the horizon, to the point on the horizon intersected by the object’s line of altitude.
- 8. energy, energy derived from the sun in the form of solar radiation.
- 9. standard unit of voltage; one volt produces one ampere of current when acting a resistance of one ohm.
- 12. system, photovoltaic system not connected to the utility grid.
- 14. measure of kilowatt production of power in kilowatts and time in hours.
- 17. (1) of or pertaining to the sun. (2) utilizing, operated by, or depending on solar energy. (3) manufacturing or providing solar power.
- 18. unit of electric current (refers to flow of current); one ampere corresponds to a certain number of electrons passing a fixed point each second.
- 20. a device used to transfer electrical energy from one circuit to another; with an alternating current, a transformer will either raise or lower the voltage as it makes the transfer.
- 23. basic unit of a photovoltaic panel.
- 26. (noun) the power consumed on an electrical circuit. (2) a power-absorbing device, such as a blender, light bulb, etc.
- 27. device that converts DC electricity into AC electricity.
- 31. grid, interconnected network for distributing electricity.
- 32. 1,000,000,000 watts.
- 36. film, a thin layer of semiconductor material, such as amorphous silicon, which is deposited directly onto a plate of glass. Least efficient of all solar cells.
- 37. any source of usable power, as fossil fuel, electricity, or solar radiation.