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ard123en wrote: »
just had a message from a company called Moiaxa selling their 3kWh solutions its over £3k !!!!!
more than £1k for kWh cant imagine many takers at that price
Battery storage is of growing interest to commercial and industrial (C&I) entities, but the wider energy efficiency sector has seen Brexit and other policy woes send confidence to new lows.
Those were the findings from the most recent Energy Efficiency Trends survey, conducted quarterly by EEVS Insight and Bloomberg New Energy Finance.
Those results, for Q4 2017, included battery storage technologies for the first time and concluded that 10% of commercial and industrial enterprises surveyed including them in energy efficiency projects commissioned within the three month period ended 31 December 2017.
Those survey results would appear to substantiate growing confidence within the UK’s renewables and storage industries that the C&I sector has developed an appetite for battery storage. Sentiment expressed at both Solar Media’s Energy Storage Summit in February and last month’s Energy Storage Europe show in Dusseldorf, compiled by sister publication Energy-Storage.News, was that the C&I sector was the one to watch in 2018.
After a huge 100-megawatt battery array, made of dozens of Powerwall 2s connected together, was switched on alongside the Neoen Hornsdale windfarm near Jamestown recently, a follow-up project was announced for Adelaide in April.
Exiled_Tyke wrote: »
I know I'm out of my depth here, so others can correct me if I'm wrong. According to this article:http://www.alphr.com/tesla/1003563/tesla-powerwall-2-uk-price-specs-release-date
A 14Kwh Powerwall2 now costs around £7k to install. If I set a cut off price of 10ppKwh (i.e. I'll buy if the price of stored leccy is less than this price) then payback occurs at 5000 cycles. Now this is beginning to look feasible.
But I have a further concern. IF I assume that I can run one complete cycle a day - to get me from PV production hours through the evening, and I also assume that there are an average of 200 days a year that this is achievable with reasonable production levels. Then the payback period I reckon is 25 years. Which now looks like the systems will never really cover it's costs. The only way forward is to be able to buy off peak leccy during the day and sell it back during the evening - but would it even be able to discharge to grid at an adequate rate while I have my oven, kettle and possibly ASHP running?
zeupater wrote: »
Different but interesting analysis of Tesla's decision to seriously upsize the storage capacity for their Powerwall domestic battery.Tesla Powerwall 2 - Business brilliance or a concept in need of a reality check ?
zeupater wrote: »
I do note that since the original Powerwall announcements there has been promise of falling prices, but home battery prices from various manufacturers seem to have either remained constant or, in some cases, even increased despite a consistent global reduction in rechargeable cell supply costs ... it would seem that the push for electrification of the automotive sector & high profile (/high value) grid-scale installations has diverted attention from the domestic sector for the moment ...
Martyn1981 wrote: »
I'm still thinking that there could be a PWII price drop announcement any day, perhaps 20%, but at the same time, why would they if demand is outstripping supply. So frustrating.
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