Glastonbury Festival runs on solar, storage and vegetable oil generators
Used vegetable oil, mind you.
WVO (waste vegetable oil) is both the base material for FAME (fatty acid methyl ester) "biodiesel" and is sometimes burned straight as "greasel". It typically has to be heated to be used as "greasel" and the engine must be started on other fuel and the fuel system flushed of WVO before shutdown.
Regardless, WVO can only be a niche player. There are only about 2 billion gallons/year produced in the USA, while diesel consumption is tens of billions of gallons and gasoline consumption is over 150 billion gpy.
Geothermal, which the headline writer obviously doesn't know much about. In yet another example of socializing the risk but privatizing the gain, the government will sponsor drilling the always uncertain bore holes. If successful, some power company will utilize it.
The plan is for Japan to increase geothermal power from the current 16% to about 23%. Luck with that.
Post by engineerpoet on Sept 24, 2019 11:12:39 GMT 9.5
If Hiroshima syndrome-afflicted Japan could have used geothermal power instead of nuclear, they would have done it.
I am certain that it won't work any better this time. Even Iceland has found that very little of their geothermal resource is good for power generation; it's mostly suitable for heating hot tubs, buildings and greenhouses. Iceland generates most of its electricity from hydropower.
Not clear there is much interest in pumped hydro schemes. The current ones in the USA are barely surviving, being designed to buy low at night and sell high during the day. But wind power and especially solar power is invading this market.
Not clear there is much interest in pumped hydro schemes. The current ones in the USA are barely surviving, being designed to but low at night and sell high during the day. But wind power and especially solar power is invading this market.
That is not how PPHS are currently functioning in places with a lot of solar. Like the Lake Hodges facility in Southern California. The night day is more of a hold over from Nuclear and other baseload paradigm, before the current renewables fad.
Now PPHS provide power in the morning and evenings. Then buying power when places like CA are giving away solar generated power or worse just curtailing it. CAISO has already curtailed almost 800,000 MWH this year with ~80 days to go and the fall curtailment season just starting. Comes out to around 3% of the total solar generation so far. Including almost 40,000 MWH in one day in May(IIRC).
That last is the real problem. How often do they get used?
Wind is even worse, figure out when to charge and when to discharge? But for CAISO not a problem, hardly any wind curtailment relative to Solar. Not a surprise with wind having half the capacity of solar.
The Water Authority’s ability to help San Diego County meet its peak power needs took a 28,000-horsepower leap forward in August when the second pump turbine at the Lake Hodges Pumped Storage Project was placed into commercial operation. With that power supply online, the Water Authority can generate up to 40 megawatts of electricity, complementing the project’s primary purpose of pumping water as part of the Emergency Storage Project by saving water ratepayers money....It generated revenues of more than $1.5 million to help offset operating costs, and it facilitates the movement of water between reservoirs for emergency use.
Full capacity was only reached in August. Figuring selling at $50(probably higher) that is 30,000 MWH(probably less) CF of 8.5%(probably less). But until this year had less than 6 months/year of real curtailment in CAISO. It wasn't even tracked in 2013 when CAISO only had 4,822 MW of Solar; 2018, 11,572 MW. Energy used 2013, 7,391; 2018; 15,257. A lot depends.
I never said it was economic. Matter of fact I pointed out the huge problem. If you need to store 40 GWH that only gets used once a year ... If PHS was economic all the projects on hold would be built. Like that one in Montana, on private land.
For fun Jan-July this year pumps have run for 25.95, 39.575, 74.925, 69.325, 54.025, 76.125, 43.05 hours/month, assuming full power and no recovery/revenue.
Thanks for making me look some stuff up. But I am probably done with this,
Post by engineerpoet on Oct 29, 2019 19:52:48 GMT 9.5
It can't be anything other than small-scale compared to demand. We have increased our energy consumption way beyond what biological processes can supply. There's no way to go back to the way things were without a huge collapse, and given the exhaustion of most high-quality ore bodies that collapse will probably go back past iron and past bronze to stone technology.
Post by Roger Clifton on Dec 6, 2019 9:38:57 GMT 9.5
Small renewable array provides power on demand to a small town through all the vicissitudes of weather and seasons, climate disasters and enemy attack. The blessed solar array is proudly displayed for all the world to see on an artistically architectured structure that also discreetly conceals its backup device. Ref: Zero-carbon firmed solar power