Battery Storage

sjt01

Member
Mixed Farmer
Location
North Norfolk
If you want cheap night electricity, look at the deals for electric cars, such as the Green Energy Tide tariff 6.4 p midnight to 7 am, but 29.99 p 16.00 to 20.00 - thats for a domestic quote including VAT etc
 

akaPABLO01

Member
Personally I’m not a big fan of lead acid or lithium with caps on lifetime usage levelling off around 10 years. The cost versus payback cannot be achievable if production cannot be sustainable all year round.

If hydrogen storage can be developed more cost effectively, then this used as vehicle power would decimate the ev lithium market. As quick to top up the “tanks” as fossil fuel and more distance traveled then by lithium. Toyota are really pushing this to take on ev.

https://www.toyota.co.uk/new-cars/new-mirai/landing

Research & Development needs to also focus on solar panel efficiency. Currently at around 16% our winter months struggle to put power in storage. If this could be increased by new ways of exploring higher solar transfer then storage in our northern hemisphere would work.

Solar panels need 100% increase in efficiency which will need a breakthrough in technology as we know it, otherwise you’ll never see your roi in current storage market.
 
Recent theory I heard which has legs if batteries imprOve;

New town us build with lots of renewables and batteries in both houses and cars.

Peak time demand is smoothed out when batteries export, having charged up during the day and top up as required at night on cheaper power. Cars can discharge batteries when they get home at 5 then re charge again at 8 ish over night. This helps iron out all the peaks whic sort of makes sense.

I imagine this is still some way off yet as tech is just not there yet.
 

Exfarmer

Member
Location
Bury St Edmunds
Battery development is on a very steep upward curve, with power doubling and size reducing about every 20 years. New battery power such as solid state and lithium - oxygen will increase the capacity x 10. The science exists and developers are struggling to ensure we have a stable generator that is not a bomb :LOL:

However. we are at the stoneage end of battery development at the moment, exiting times ahead.
The real problem is the sources of Lithium and Chromium. The demand for vehicle batteries is going to be vast, cars are bad enough but what about lorries?
Most of the chromium, required for stabilisation I understand comes from the Congo where the conditions are truly dreadful and the environmental impact indescribable.
Both these materials are finite, to consider using them for domestic storage is not the brightest of ideas. Far better to be looking at industrial storage with an upgraded power network able to transport electricty from the distant reaches of the land from power generated by wind waves etc combined with pumped hydro
 

Y Fan Wen

Member
Location
N W Snowdonia
@Zetor :
One of the things that the installers we used were discussing was that as electric cars become more prevalent, the technology is already available so that when you plug you electric car into your house to charge, that battery capacity can then become part of the load available to run your house. Even the smallest electric car has a 30KWH battery so that will be more than enough to run the house for a while. The assumption is then that you only draw a heavy load on your house when your home (and hence a car is there) so you only need to have a small battery to run the equipment that in your house that is left on when you (and your car's battery) are not.
Something I've been pondering on is using worn out ev battery packs as domestic battery storage as a second life for them. The loads required in the domestic situation are only a fraction of that needed in ev situation. Trouble is I don't know in what manner ev packs deteriorate.
 
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