Content deleted Content added
Dougmcdonell (talk | contribs) m →Complementary power sources and matching demand: correct markup syntax |
→Solar energy: fog and time of disappearance of morning fog is still an issue for solar energy forecasting. |
||
Line 28:
[[File:ATTParkannualoutput.png|250px|thumb|right|Seasonal variation of the output of the solar panels at AT&T park in San Francisco]]
Intermittency inherently affects solar energy, as the production of electricity from solar sources depends on the amount of sunlight at a given place and time. Solar output varies throughout the day and through the seasons, and is affected by dust, fog, cloud cover, frost or snow. Many of the seasonal factors are fairly predictable, and some solar thermal systems make use of heat storage to produce grid power for a full day.<ref>[http://www.nationalgeographic.com.es/2011/10/25/gemasolar_energia_non_stop.html Gemasolar, energía non stop] Spanish 26 October 2011</ref>
* '''Intermittency:''' In the absence of an energy storage system, solar does not produce power at night or in bad weather and varies between summer and winter. When intended to produce electricity only for peak air conditioning loads, there is no intermittency.
| |||