Solar Power. It’s coming of age. CSP (Concentrated Solar Power). There are two types: Parabolic Troughs and “Power Towers”. Parabolic Troughs. Linear parabolic mirrors focusing light on a tube Very efficient (60%) utilize salt heated to 1000 degrees Insulated storage for salt
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It’s coming of age
There are two types:
Parabolic Troughs and
Solar Trough “farms” in the US
“Solar One” Parabolic Trough in Nevada
64 MW; 400 acres; (15,000 homes)
280 MW CSP, the largest in the world (70,000 homes supplied—covers 1900 acres), and a second 280 MW plant under construction near Barstow, CA (54,000 homes). On line 2014.
Greentech Mediafor the latest in . . .well, greentechand from National Renewable Energy Lab—Thermal StorageAnd the California ISO website shows demand and renewable output.
The original solar power tower located in Barstow, California, and completed in 1981. The Solar One had a design capacity of 10,000 peak kilowatts, and was composed of a receiver located on the top of a tower surrounded by a field of reflectors. The concentrated sunlight created steam to drive a steam turbine and electric generator located on the ground.
Integral is Sevilla PV, an integrated photovoltaic array that will power 1800 homes
Ivanpah Power Tower—eastern California. First circle is nearing completion. 4000 acres. Towers 500 feet tall. 170,000 heliostats (mirrors)390 MW Equals 140,000 + homes
PV still less than 1% of US power output, but increased 76% in 2012 bypassing wind for first time.
Binary System are desert ecosystems--no free lunchesUtilizes a secondary closed loop of low boiling point substance to drive the turbine (Probable EGS model—low water consumption.
Ocean Renewable Power Company are desert ecosystems--no free lunchesThis thing sits on the bottom of a river or bay. It’s a demo and produces 150 kw of electricity as tide goes in and out.