On Fri, 17 May 2019 14:17:26 -0700 Chris Albertson <[email protected]> wrote:
> Have you run the numbers? What do they cost per KWH over 10 years? The > cost of each battery is meaningless. > The "price to beat" right now is about $500 (the cost to buy and maintain > over 10 years in dollars/KWH) > > THose Telco batteries do last a LONG time because the telcos NEVER > discharge them but at 50% discharge they get about 500 cycles which is > REALLY good compared to most LA batteries. But in this use case -- > storing solar power they will see one cycle per day and a 500 cycle > battery will not last two years. It might be worth looking a redox flow batteries, if they are available in suitable size somewhere. I think number of cycles and service life is good but did only spent a minute or so looking. I would expect they are a particularly good solution for long discharge/charge cycles but suspect short bursts of high power would be a problem. Nicklas Karlsson _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
