On 12/1/20 10:28 AM, Mark Abramowitz via EV wrote:
I think that this analysis has been done many times, and the amount that you get is relatively small compared to the demand, AND the cost can be very high if you are including solar films for flat roof solar. And many roofs cannot use solar. You also need to think about storage and transmission.
Texas may be leading the way. Large fractions of our power are coming from west Texas wind. And now, west Texas PV. The PV was encouraged by the transmission investment that was made to get wind energy where it needed to go. Wind and PV mostly produce at different times so the transmission can be shared. But, our energy supply system is evolving and adapting.
The ERCOT energy market seems to be working well. Much of the time, PV and wind rates are too low but the average encourages more development. That will continue until low average rates discourages new production. Work is afoot to make the storage business attractive to investment.
The system is based on free enterprise. Encouraging many people try to find their profitable niches with minimal regulation. Right now, especially as big coal plants are being decommissioned, we need "peaker" plants which operate infrequently; their continued presence is encouraged by the rewards of very high rates when they are needed. We believe the storage business will be similar; high rates when used. Competition will dictate how much capacity is created. Too much capacity, lower rates, lower profits, fewer players. Too little capacity, higher rates which attracts more players. A robust storage segment will allow increased wind/PV development. Already, wind/PV is pushing coal out of the market.
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