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Battery storage systems at ‘the edge of profitability,’

Scorpio

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Battery storage systems at ‘the edge of profitability,’ as German households reach 1GWh of capacity
Clint Siegner




The dramatic fall in cost, occuring alongside the mass roll-out of home storage systems in Germany since 2013, has highlighted the potential of decentralised batteries in virtual power plants to utility companies and grid operators.


Since 2017, every second residential PV installation in the European state has been accompanied with a battery pack, and there are now roughly 150,000 home storage systems with an estimated capacity of about 1GWh in circulation. Decentralised batteries are "one of the hottest topics in energy research," according to Dr Kai-Philipp Karies, Jan Figgener and David Haberschusz, energy storage researchers at RTWH Aachen University in Germany.




In an article for Volume 20 of PV Tech Power, the quarterly technical journal from our publisher Solar Media, the researchers argue that battery storage systems are at “the edge of profitability” across several market segments today. The article looks at the emotional and economic drivers behind Germany's residential storage boom and unpacks the complex business case for commercial storage. It also highlights the role multi-megawatt batteries could have in supporting national transmission grids and phasing out fossil fuel generation.


When it comes to the latter, the researchers note that Germany and the UK are the two “most important” markets in Europe. The UK – which is more susceptible to energy instability due to its island grid – can “prevent, or at least mitigate” national grid blackouts like the one incurred in late August by deploying “increasing amounts" of utility-scale battery storage systems. In Germany, three of the four grid transmission operators have submitted bids to the German grid regulator to test ‘grid-boosters’ – in other words, battery systems with a total capacity of 1.3GW.


Practical insights gained from the operation of grid-operated battery systems will provide lessons for a future which must cater to an increasing number of electric vehicles, according to the academics.


Volume 20 of PV Tech Power, the downstream solar industry journal from our publisher Solar Media includes a Special Report on energy storage and is out now, available for free download here.


'Market and technology development of stationary battery storage systems?’ from Dr Kai-Philipp Karies, Jan Figgener and David Haberschusz is available here.









Global news, analysis and opinion on energy storage innovation and technologies​







http://www.silverbearcafe.com/private/10.19/battery.html
 

Buck

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#2
battery storage systems are at “the edge of profitability”
quite literally, this still means they're losing money hand over fist as replacement costs are still a factor between years 4 to 7

and think, why would you risk bolting one of Elon's re-ignitable battery packs onto anything in your house? To burn out your car is one thing but to risk your house? Just to 'stay green'? Will the Government warranty this sthi? No?
 

GOLDBRIX

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#3
Will the Government warranty this sthi? No?
Nor will the cos. that manufacture them.
It is a parasitic business. "Give Me, Give Me, Give Me" and when ya aint got no more or a SNAFU with damages "Oh, well cya".
 

tigerwillow1

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#4
To put this in perspective, a gigawatt hour of storage over 150,000 systems is 6.67 kWh per system. For me (the totally "average american") this will run my refrigerator for 5 days OR electric water heater for 1 day OR heat pump for 1.5 hours. That's with totally running down the battery which seriously shortens its lifetime. This "distributed battery" will certainly help greatly with a system wide short term demand shock or blackout. Won't do squat for a longer term blackout or if the sun isn't shining. I have not seen the dramatic fall in cost of batteries. The price of lead acid batteries, if anything, has been skyrocketing with the market price of lead. AFAIK, they are still the lowest cost battery technology out there for solar systems. Technology-wise, it can work, but it's darn expensive.

I realize when working with giga-numbers it's east to slip a decimal place or two, so I'm not offended by anybody double-checking the math.
 

Scorpio

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tiger,

what you refer to is reality vs the proposed dream that is in fact some time off,

we have an awful long ways to go to achieve any long term vision of affordable 'green' energy in quantity sufficient to replace current while maintaining the same 'quality of life'.
 

Buck

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To put this in perspective, a gigawatt hour of storage over 150,000 systems is 6.67 kWh per system. For me (the totally "average american") this will run my refrigerator for 5 days OR electric water heater for 1 day OR heat pump for 1.5 hours. That's with totally running down the battery which seriously shortens its lifetime. This "distributed battery" will certainly help greatly with a system wide short term demand shock or blackout. Won't do squat for a longer term blackout or if the sun isn't shining. I have not seen the dramatic fall in cost of batteries. The price of lead acid batteries, if anything, has been skyrocketing with the market price of lead. AFAIK, they are still the lowest cost battery technology out there for solar systems. Technology-wise, it can work, but it's darn expensive.

I realize when working with giga-numbers it's east to slip a decimal place or two, so I'm not offended by anybody double-checking the math.
I did it, 50+ wet cell deep cycle truck batteries, Group 27 iirc, not the 31's or anything larger like a forklift battery, my goal was for maintenance purposes, so, i went to individual batteries that could easily be handled by one man, me

anyway, iirc, nearing 1mw of power output, was going to move to 60 batteries, that's lots of money, but, it was spread out, i figured my maintenance / replacement costs would be spread out...in the summer ran 2/3 of my house till about 2 hours after sundown, year 4, started to have weak batteries start to gas out, began the replacement period...ran through the final three years of operation when I did some rational math, labor, replacement costs, acid spills, two exploding batteries, etc, costs...the money i saved didn't exist...i looked over everything and discovered what I saved over the years simply went back into the costs of the batteries, initial build costs, equipment only, labor was not included...

it was fun to do, it taught me, in 2007/2011, the US government, US PAC's, Self-Interest Groups et al, are some of the smarmiest people on the face of the planet, they lie constantly about everything, solar power included

So, here we are in 2019, i know what i know and low and behold, in some local neighborhoods, here's our local power company building out battery facilities, some are located in neighborhoods, no signage, no notification of what it is, but, the towers look kinda inspiring, but the technology inside is dangerous and the ideology is faulty...

Long Live the DickTate


my experience, my 2¢
 

Buck

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#8
one last thing I ran across when pricing batteries, output costs per kwh, i did some math
i tried to find it earlier, it's around here...anyway
what I discovered was there is a baseline price, a bottom price per kwh in a battery, in any battery from AAA to D cell to wet cell to dry cell...except for some exhorbitant pricing that i ran into for batteries called Solar Batteries...i couldn't see what any difference was when compared to a typical wet cell from Walmart, i did some leg work, some calculations on some crazy new plating material, updated lead, hot electrolyte, etc, Walmart batteries are more than acceptable for what I was doing, anyway, the price per kwh averaged damn near the same, across the board, per output with some manufacturers claim as 'life' of a battery, etc...
i'm crusty with it now, it lost my interest years back and i'm not an activist against it but I can't wait for the subsidies to end...i hate paying for crap

solar is a niche market, it has a place, along with a battery but to replace a society with a cycling power supply, cycling power supply, even an idiot knows that doesn't even sound right and a computer geek would think it could be subdivided and controlled some more, goody...LOL

and the bearings and machinery in the plant go round real fast then round real slow, round real fast round real slow...

Solar was never meant to work, except to tear us down...it's worked just fine for Europe, name the last pos you purchased that was made in europe

me either...
 

wallew

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#9
You think SO SMALL...
Here is a battery that has a LONG LIFE (30 years) and will handle to it's limit.

http://www.relocationspecialists.org/bat/cell.html

They put them in NAVY SHIPS that have nuclear reactors... subs, aircraft carriers and every new ship in between...
 

Buck

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#10
No one ever suggested i'd have to buy my neighbors barn to store my solar battery pack
Concrete Floor, Special Dolly, Electrolyte Pumps, what's next? OOOO cabling?