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Old 02-25-2014, 06:39 PM
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ImGod ImGod is offline
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Join Date: Oct 2004
Location: Nebraska
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Default Re: Universal Renewable Energy: Suitable Substitute for Morning Sex?

Yeah, solar's biggest problem is the fact that the peak power generation doesn't occur at peak power use for most of us.

The power demand curve starts with the morning ramp as people get up, use coffee pots, toasters, stoves, hair dryers, etc. The evening peak is when people get home from work and start the evening routine. It peaks the highest because the residential and commercial energy uses overlap. The effect of more renewables in the area is the demand curve becoming a more pronounced Duck Curve

Duck Curve 2

Solar peak occurs between 10 and 1 pm in the curve. In the area of the country I work in (Southern California) the wind power is generated due to land/sea interface and peaks overnight typically, dying off during the day.

So to balance everything out is and interesting real time experiment in balancing base loads, peaks, fuel pricing, and energy pricing. The prices spike if the wind doesn't come in as forecasted or a cloud passes over a solar field. The evening peak requires a large amount of generation that can ramp up quickly.

Distributed generation works the best, like solar panels on a house, but if there is no place to store what you don't need during the day for when you get home later from work, you'll miss out on the timing of your peak use. If the power company buys your energy production it doesn't matter. You can generate during the higher demand period and let others use it if you aren't home, then buy back power at a lower rate when the peaks are over.
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Thanks, from:
Crumb (02-25-2014), JoeP (02-25-2014), Sock Puppet (02-25-2014), SR71 (02-26-2014)
 
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