On Thursday, May 6, 2021 at 10:20:49 AM UTC-4, Bill Sloman wrote:
> On Friday, May 7, 2021 at 12:06:18 AM UTC+10,
gnuarm.del...@gmail.com wrote:
> > On Thursday, May 6, 2021 at 9:46:19 AM UTC-4, Ed Lee wrote:
> > > On Thursday, May 6, 2021 at 1:31:36 AM UTC-7, Robert Latest wrote:
> > > > Rick C wrote:
> > > > > We are still a long way to being able to eliminate fossil fuels by using
> > > > > renewables instead, but it is silly for people to dismiss the progress that
> > > > > has been achieved. Renewables are already cheaper by the kWh than pretty
> > > > > much any other viable energy source, but have a problem with availability.
> > > > > Methods of storing energy are becoming more effective and cost efficient and
> > > > > will continue to improve.
> > > > Does anybody understand what's going on in Phoenix/AZ, for instance? Last time
> > > > I visited I saw the desert sun blasting down on one-story plywood homes whose
> > > > inhabitants pay hundreds of dollars per month to keep the interior at 50°F all
> > > > day (even when they're not at home). Looks like all you need is a roof covered
> > > > in solar panels, no government regulation needed. Also barely any energy
> > > > storage as the A/C is needed when the sun shines the most. Why isn't it done?
> > > > Subsidies for fossil and nuclear skewing the market against solar?
> > > Same for Vegas, lighting up the strip all night even when nobody is around. Because electricity is almost free there. I think it's around 10c/kwhr for NV and 8c/kwhr for AZ retail, but practically free (perhaps 2c to 3c) to generate. Don't forget the hoover dam making electron for NV, AZ and CA for decades.
> > I just read there is a plan being proposed to turn the power plant into hydroelectric storage for solar. Seems the generators only run at 20% of capacity because of issues with releasing too much water downstream. I'm not clear on how a higher generation rate would then be accomplished without impacting that.
> You put a second - low - dam just down-steam of the main dam, and pump water up out of that pool back into the volume behind the main dam when you want to store energy. As long as you keep on pumping the same water around the loop, nobody further down-stream is in the least interested in the how much water goes through the turbines.
That doesn't seem to be what they are planning. There is already another lake below Hoover dam and the water levels already fluctuate a lot. This is the reservoir they are planning to use. It's not like an infinite number of dams can be added to a river without displacing a lot of people.