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World's First Hybrid Solar-Geothermal Power Plant Underway

By Stephen Lacey, Climate Progress
August 30, 2011   |   10 Comments

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1 of 10
Anonymous
August 30, 2011
This facility is located in Stillwater, Churchill County, NV about 15 miles east of the town of Fallon and about 80 miles east of Reno, NV.
Comment
2 of 10
August 31, 2011
I think we should convert our nuclear plants to hybrid solar, that way they don't just have generators in the event of a disruption of electricity as happened in Japan.
Comment
3 of 10
August 31, 2011
I wish them the best in developing this hybrid technology and in getting support in bringing it to fruit.
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4 of 10
August 31, 2011
Instead of using solar power to keep emergency systems running at nuclear plants, during emergencies, we should close down all nuclear plants and rejoice the end of disasters. We still have the unresolved issue of nuclear wastes, even if the plants were safer. We still have the fact that nuclear power is the most expensive option. We still have the immense water use for cooling with nuclear power, which creates thermal degradation and increases tritium content. We still have the danger of terrorist attack on nuclear facilities, and the possibility of theft of nuclear materials. We have the increased cancer rates and increased birth defects from nuclear power even when it is working normally. We have liability risks that only the federal government and the tax payer's money can insure.

There simply is no reason to put up with the danger and expense and degradation from nuclear power.
Comment
5 of 10
September 1, 2011
We had Solar-wind hybrid,wind-diesel hybrid. Now Solar-Geothermal hybrid power plant. Great. It will solve the problem of intermittent nature of solar.

Dr.A.Jagadeesh Nellore(AP),India
Wind Energy Expert
E-mail: anumakonda.jagadeesh@gmail.com
Comment
6 of 10
September 1, 2011
I love good ideas, it is time to build clean energy, and replace the dirty. So much talking about it in America, but much less actually doing it. I'm excited to see 24 mw of clean juice on the grid. Gods speed project decision makers. Embrace the photons.
Comment
7 of 10
September 1, 2011
Totally agree with Clee. I was originally thinking that they will announce Solar CSP/geothermal plant. Although PV/geothermal plant is a genius idea but it seems like 2 power plants with differnet technologies feeding into the grid at 1 location.

I have worked on conceptualizing CSP/geothermal hybrid plant where CSP would heat the 2-phase geothermal steam to increase its enthalpy and therefore its steam fraction before going into the separation/scrubbing system.

Another way to look at CSP/goetherml plant is heat up the produced brine using CSP before injecting back into the geothermal reservoir. that way you can increase the production of your field and at the same time you can use the reservoir itself as heat storage medium. But you will have to pump the brine at higher pressures into earth to counter reservoir pressure &make sure it stay as liquid and not flash in the wellbore.

One more thing, geothermal fields don't necessary last for only 30yrs. the field where i work at (MakBan- Philippines) is on its 37th yr and still going strong (capacity >300MW). There are other geothermal fields that last longer.

Ahmad
Comment
8 of 10
September 7, 2011
I totally agree with the philosophy of combining geothermal with other green technology. It is predicted using TRIZ (Theory of Inventive Problem Solving) methodology. New technologies always have positive and negative aspects. You can minimize the negative functions (cost and periodic generation of electricity)by combining all types of green sources. Why not add wind power to the mix? These three forms of energy production use different free resources - wind, sun and stored thermal energy from the earth. They will share one parcel of land, one access road and support facility, have better consistency of product generation, share compatible equipment, reduce management costs and overhead.

Who knows what other breakthroughs we will have in 10-20 years in all these areas? Lets optimize what we can do now and move aggressively forward reducing our dependence on foreign oil, reduce air pollution and create more jobs.
Comment
9 of 10
September 10, 2011
I have mentioned this plant while discussing subsidized green power here:

https://sites.google.com/site/freemarketsolarpower/home/if-we-must-have-subsidies/subsidized-exports----make-sense

I welcome any further info on this and any other WORKING hybrid-solar plants that actually, you know, 'work.' That is, they produce a base-load power flow at cost-competitive prices and a net ecologic benefit (i.e., less brown-power used, carbon-based pollution reduction). Send info to freemarketsolar@juno.com
Comment
10 of 10
October 3, 2011
I agree. That doesn't sound like a solar geothermal hybrid plant to me. A real geothermal hybrid plant could be: melting salt during the day with solar while the geothermal produces electricity. Shut the geothermal down at night and run the water through the molten salt at night to create electricity. This way the solar and geothermal can use the same turbines and you can get all the salt you need from the great salt flats in Utah. The geothermal rests at night and the Earth can heat the rocks back up. That would double the life of the geothermal. Salt melts at about 500 degrees and becomes a liquid. 500 degrees is enough to produce steam for the turbines and if you make the salt container large enough, it can hold enough heat for two or three days in case you need to do some work on the geothermal part. The rare minerals (lithium (100 tons a year), and 10 tons a year of silver) you can extract from the brine of the geothermal can pay for the building and upkeep of both plants.
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