Mother Nature Wins the Climate War
Comment
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Comment by Willem Post on October 1, 2023 at 4:09pm
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BATTERY SYSTEM CAPITAL COSTS, OPERATING COSTS, ENERGY LOSSES, AND AGING
https://www.windtaskforce.org/profiles/blogs/battery-system-capital...
PART 8
Grid-scale Battery System Owning and Operating Cost for Solar Bulge Control
Battery systems perform various functions during a day, including absorbing the heavily subsidized, expensive, midday solar bulge, and discharging about 81% of it during the peak hours of late-afternoon/early-evening; the other 19% are system losses. The utility paid at least 10 c/kWh to the Owner, but that was reduced by about 50%, due to various financial tax shelter gimmicks, including the upfront 30% ITC. See Part 4
Owners want a return on investment of at least 10%/y, when bank loans and long-term Bonds are 6.5%/y.
The 3.5% is a minimum for the hassles of designing, building, erecting, and paperwork of a project
Assumptions for Analysis
Assume, in the morning, the batteries are charged at about 20% full, so they can absorb the bulge to about 80% full.
On days, with little or no bulge, the batteries are charged with low-cost, night-time electricity
- Bank loan 50%
- State governments want Owners to have at least a 50% investment
- Megapack li-ion systems, $575/kWh for 2023. See Part 1
- Capacity factor, 0.6
- Owner return, 10%/y for 15 years
- Amortize bank loan, 6.5%/y for 15 years
- Cost of government subsidies, 50% of total costs
- System loss, 19%, from HV AC to HV AC. See Parts 2 and 3
- System loss, based on from HV grid at 20 c/kWh, to HV grid at 8 c/kWh
- System aging, 1.5%/y is ignored. See Part 7
The $0.519/kWh of throughput is significantly understated, because it is based on a very high CF = 0.6, and excludes the cost of system aging
All project costs are paid by ratepayers, taxpayers, and added to government debts.
http://www.windtaskforce.org/profiles/blogs/cost-shifting-is-the-na...
NOTE: Owners of grid-scale battery systems have the real owning/operating numbers, which they do not make public, because they are “proprietary”
Capacity, 1.0 MW/4 MWh
2023 pricing
Megapack li-ion, $/kWh
575
Capital cost, excludes aging, $
2300000
Energy rating, kWh
4000
Subsidies
50%
Cycles/d
365
Owner return, 10%/y for 15 y
50%
CF
0.6
Amortize bank loan, 6.5%/y for 15 y
50%
Fr. HV grid kWh/y as AC
1081481
Owner return, $/y
148296
In battery, kWh/y as DC
973333
Payment to bank, $/y
120213
To HV grid, kWh/y as AC
876000
Total payments, $/y
268509
System loss, kWh/y
205481
Other costs, O&M, insurance, etc., $/y
40000
Total cost, $/y
454725
System loss, $/y
146216
Total costs, $/y
454725
Cost, $/kWh of throughput
0.519
Paid to Owner by:
Government, as subsidies, $/y
227363
0.260
Utility ratepayers, etc., $/y
227363
0.260
Total, $/y
454725
0.519
Fr HV grid
1081481
$/kWh
0.2
$/y
216296
To HV grid
876000
$/kWh
0.08
$/y
70080
$/y, loss
146216
Maine as Third World Country:
CMP Transmission Rate Skyrockets 19.6% Due to Wind Power
Click here to read how the Maine ratepayer has been sold down the river by the Angus King cabal.
Maine Center For Public Interest Reporting – Three Part Series: A CRITICAL LOOK AT MAINE’S WIND ACT
******** IF LINKS BELOW DON'T WORK, GOOGLE THEM*********
(excerpts) From Part 1 – On Maine’s Wind Law “Once the committee passed the wind energy bill on to the full House and Senate, lawmakers there didn’t even debate it. They passed it unanimously and with no discussion. House Majority Leader Hannah Pingree, a Democrat from North Haven, says legislators probably didn’t know how many turbines would be constructed in Maine if the law’s goals were met." . – Maine Center for Public Interest Reporting, August 2010 https://www.pinetreewatchdog.org/wind-power-bandwagon-hits-bumps-in-the-road-3/From Part 2 – On Wind and Oil Yet using wind energy doesn’t lower dependence on imported foreign oil. That’s because the majority of imported oil in Maine is used for heating and transportation. And switching our dependence from foreign oil to Maine-produced electricity isn’t likely to happen very soon, says Bartlett. “Right now, people can’t switch to electric cars and heating – if they did, we’d be in trouble.” So was one of the fundamental premises of the task force false, or at least misleading?" https://www.pinetreewatchdog.org/wind-swept-task-force-set-the-rules/From Part 3 – On Wind-Required New Transmission Lines Finally, the building of enormous, high-voltage transmission lines that the regional electricity system operator says are required to move substantial amounts of wind power to markets south of Maine was never even discussed by the task force – an omission that Mills said will come to haunt the state.“If you try to put 2,500 or 3,000 megawatts in northern or eastern Maine – oh, my god, try to build the transmission!” said Mills. “It’s not just the towers, it’s the lines – that’s when I begin to think that the goal is a little farfetched.” https://www.pinetreewatchdog.org/flaws-in-bill-like-skating-with-dull-skates/
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Hannah Pingree on the Maine expedited wind law
Hannah Pingree - Director of Maine's Office of Innovation and the Future
"Once the committee passed the wind energy bill on to the full House and Senate, lawmakers there didn’t even debate it. They passed it unanimously and with no discussion. House Majority Leader Hannah Pingree, a Democrat from North Haven, says legislators probably didn’t know how many turbines would be constructed in Maine."
https://pinetreewatch.org/wind-power-bandwagon-hits-bumps-in-the-road-3/
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