Originally Posted By: turtlevette
Originally Posted By: Shannow
duck curve again, reducing daily profitability to the point that this much required peaker can't make money.
Duck curve? I seriously doubt solar can make a dent in any peak in California. The loads are massive.
What I suggested...
Originally Posted By: Shannow
The disruption of solar has meant that the requirement for "peak" non solar has moved later than the load peak has (and is) traditionally been.
So part of the traditional peak is now taken by solar.
The new thermal peak is steeper, and the total area under the curve to make money smaller.
So the disruptive technologies push out traditional, without being able to supply the market themselves...requiring way less efficient fast start technologies to be newly built (which they won't do until they make money).
Reality
http://reneweconomy.com.au/californias-duck-curve-has-arrived-earlier-than-expected-36106/
2013 predictions of California...note that generation requirements are moved out of daytime, and to peaks, requiring heavier ramps.
Less "area under the curve" means less MWh generated to cover the costs of the operation...simple...their price goes up, profitability goes down until they cease generation...
What actually happened
Originally Posted By: turtlevette
Theyre like cars. Its cheaper to build new than throwing money at a worn out unit.
Really ?
they are only going to be built new if they can make money, aren't they ?
If they are built, they will be simple cycle GTs with <30% efficiency (clean ???), and will only be built when power prices reach the point at which THEY will cover their costs.