Yes, using electric car batteries as back-up storage is a trendy idea at the moment, as is the idea of a more decentralised grid. But at the moment of course there arn't many electric cars. Time will tell how practical it is. Not sure what the difference is between "flexible" gas and "crappy" gas is. You suggest the relatively small number of electric cars can store 25gb, that is nearly half of the UK's peak demand - good luck with that.
Not really sticking plaster. It's been around forever but the new grid won't be centralised coal, gas nukes it'll be renewables with storage at distribution level, flexible gas and some nukes. So it'll move from a few crappy old coal, gas and nukes with a huge reserve (and massive centralised risk and balancing costs) to hundreds of thousands, millions even of tiny power stations - solar, wind, ad, biomass etc - some bigger legacy plant and lots of batteries in the form of cars. Nissan are… Read More
It's a vanadium redox (flow) battery each 1MW and so can deliver 1MW for 1 hour or 0.5MW for 2 Hours etc. Can't tell you cost as its a secret but it's lots per MW!! Typical lithium ion batteries on MW scale might be say £1m/MW or thereabouts with ten year life.
Doesn't surprise me that this is a realistic business project because fast response and STOR tariffs are many multiples of normal rates so basically IMO your company's work doesn't really tell us much about the viability of battery technology for normal electricity supply. Actually the STOR market has become so popular because of the possibility of shortages has made essentially "sticking plaster" supply so lucrative.
To measure a storage device you have to measure it over time, not just in MW. So is that a mega watt/hour? The battery on my van will give me a hundred ampere /hour.at 12 volts thats 1.2 kW/hour. It cost £80. What will your battery cost and what will its life span be
Nope it's accelerated incredibly and we are installing three 1MW batteries on a project to play the fast response and frequency response mkts. Maybe STOR a bit too although we don't really have the duration for that piece. In a recent presentation, WPD had had 8GW of applications for storage. Now nowhere near that will be built but it shows the interest. Once you fit storage to renewables (unsubsidised) then that's a game changer.
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