09-17-2018, 05:31 PM
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#81 (permalink)
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Master EcoWalker
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There's the Solana Generating Station.
It works but it has issues, both environmental and reliability wise.
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  lifetime FE over 0.2 Gigameter or 0.13 Megamile.
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09-17-2018, 05:38 PM
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#82 (permalink)
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Master EcoModder
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Solana is concentrated solar to molten salt to electricity.As generation. Not electricity to molten salt to electricity as storage for solar PV or wind.
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09-17-2018, 05:41 PM
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#83 (permalink)
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Master EcoWalker
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True. Thermal storage too though.
Quote:
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The Solana Generating Station is designed to provide six hours of energy storage.
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I see no reason why that couldn't be scaled up, if needed.
It reveals a big problem with these kind of systems (actually the same as with stirling engines, Seebeck elements etc): how to keep the cool end of the thermal generator cool... They use quite a lot of water.
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2011 Honda Insight + HID, LEDs, tiny PV panel, extra brake pad return springs, neutral wheel alignment, 44/42 PSI (air), PHEV light (inop), tightened wheel nut.
lifetime FE over 0.2 Gigameter or 0.13 Megamile.
For confirmation go to people just like you.
For education go to people unlike yourself.
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09-17-2018, 05:56 PM
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#84 (permalink)
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Master EcoModder
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If you are starting with concentrated sunlight, you are happy with whatever electrical energy you can get out of it through the steam turbines. If you are starting with electricity from solar PV or wind to begin with that already underwent it's challenges to become electricity, and are trying to store some of it over night, 30% round trip efficiency into the salt and out through the steam turbines isn't very useful.
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09-17-2018, 08:23 PM
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#85 (permalink)
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Corporate imperialist
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Concentrated solar not the best idea for some where known for wild fires.
Plus a molten salt system sounds really expensive.
I'm trying to do grid tie solar for around $1 a watt.
I like doing stuff my way, cheap but over built.
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Last edited by oil pan 4; 09-18-2018 at 12:09 AM..
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09-18-2018, 01:36 PM
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#86 (permalink)
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Master EcoModder
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Quote:
Originally Posted by sendler
Electrical to molten salt to electrical? Where? How much storage? And what is the round trip efficiency?
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No - heat to electricity, and the excess heat to molten salt and then heat to electricity. |
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09-18-2018, 01:46 PM
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#87 (permalink)
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Master EcoModder
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Quote:
Originally Posted by NeilBlanchard
No - heat to electricity, and the excess heat to molten salt and then heat to electricity.
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So you are not talking about storing solar pv or wind electricity? What heat to electricity? What are you storing with this molten salt?
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I have seen reports of molten salt energy storage for GenIV nuclear where by it could send 0% electricity to the grid during peak solar hours and 200% all night long.
Last edited by sendler; 09-18-2018 at 01:57 PM..
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09-18-2018, 02:30 PM
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#88 (permalink)
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Master EcoModder
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How about a pumped storage system that uses an hydraulic ram to leverage tidal forces?
Weight-lifting weights on a flagpole?
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Last edited by freebeard; 09-18-2018 at 03:41 PM..
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09-18-2018, 02:38 PM
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#89 (permalink)
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Master EcoModder
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???
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09-18-2018, 03:20 PM
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#90 (permalink)
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Corporate imperialist
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I was talking about something that I could put in my garage back yard or shed to provide some heat after the sun goes down.
You know so I don't have to burn as much coal.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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