Large Scale 24/7 Solar Power Plant To Be Built in Nevada 475
RayTomes writes "The Obama administration has provided a loan guarantee of $737 million to construct the first large-scale solar power plant that stores energy and provides electricity 24 hours a day, 7 days a week."
This solar power project, a heliostat rather than a photovoltaic system, with a molten salt system to store power as heat for times when the sun isn't shining, will be constructed in Nevada and, says the article, is expected to create "600 construction jobs and 45 permanent positions."
pernament employees per MW (Score:5, Interesting)
At slashdot's favorite nuclear power plant Vermont Yankee, there are more that 650 employees for a plant that does not manage to run at 620 MW all that well. Let's give them 80% up time. That is 1.3 employees per MW.
Nuclear power seems less efficient than solar power by this measure. Maybe nuclear power is just a "make work" type jobs program which actually hurts the economy overall.
The proper role of government (Score:5, Interesting)
Re:pernament employees per MW (Score:4, Interesting)
Interesting metric. What probably counts more is the level of education required for those employees. My guess is in a heliostat most of the labor involved has to do with cleaning the mirrors, now you are talking an unskilled $10/hour job vs a nuclear plant tech that is making $50+/hour, even if there were 5 employees per MW in the solar plant it would still be better. Looking at raw employees per MW doesn't seem to be of much use. The much more important issues are rather obvious:
1) no nuclear waste
2) no nuclear fuel
3) the worst that could happen is some molten salt all over the desert
4) workers require less training and clearances
5) the plant is much less of a terrorist target
About the only downsides are cost and land space, since in the USA we have an abundance of both (compared to every other industrialized nation) we should be building these things all over the place, even in not so sunny places. Since no body wants to cut the defense budget (which is massively overinflated and a waste IMO) we should have the army start building and running these.
Wrong approach (Score:5, Interesting)
In the end, the question should not be how efficient it is, but how economical it is. A thermal storage that has little costs to set-up, but will last for 20-30 years (within 10-15 years, ultra-caps will become the dominant form of new storage, and would then replace this). That approach extends this equipment for very little costs. More importantly, it would enable ALL FORMS of Alternative Energy to provide power as they can, since the salt storage would act as a buffer for demand systems. Right now, America loses something like 12 GW yearly because they have to feather wind generators at night. Likewise, we have gas turbine generator that are built to handle the demand, esp. when AE falls. With a thermal storage, it provide our demand system, while allowing AE to run at full power.
Re:Dunno, article leaves out information (Score:4, Interesting)
Granted - in Nevada they will need to ship lots of water out to the plant to keep the mirrors clean. But its still cheaper than coal or oil. But it won't be subject in any meaningful way to the whims of the coal or oil markets.
Re:pernament employees per MW (Score:2, Interesting)