liftboy hat geschrieben:Hi Chris,
thanks for your message.
There are still some open points:
1) Could you tell me something about the quality of the Lithium-cells? Which durability forecast do you have? What about a guaranty?
2) Why do you take single charger for the single cells, why not only one or maybe two for all cells?
3) Do I understand it right, that a 10 kWh-storage incl. surplus-controller should be around 6600 till 7000 €?
4) What about Installation-costs? Are they included?
BTW: currently I use the origin EVSE with 10 A, next week I will get a cable from Bettermann adjustable from 5-16 A.
Thanks and regards
You are welcome, I will try to clarify these points:
1/ These CALB CA series cells are probably the best available since last year, please see my blog and the Components page for more and Jack Rickard's post on them. They should last 20 years , 7000 cycles, if charged and discharged everyday. I am not selling any, but they can be found in Europe in Amsterdam at EVtv warehouse
2/ not at all, I wrote 16 because I have 6 AC terminals for charging on the Control Board, and the first one should have one charger on it, the 5 other can have 1, 2 and maybe 3; so 1 + 5 x 3 = 16 chargers. Each charger charges the whole Battery Pack, and they are all in parallel
3/ no, it is cheaper than that : The initial ESS is 5kWh, 550W charge, 1700W discharge using 8 LiFePO4 CA180FI CALB cells, 6 chargers and 8 grid tie inverters, and it should cost 3,500 EUR . From this base, you can add anything you want: 5kWh of additional cells -in parallel-, 3 chargers, 2 GTIs, for 1700 EUR, 100 USD, 120 USD roughly. My ESS Control Board can handle even a 20kWh capacity Battery pack, with 10 chargers and 12 GTIs : it is very flexible and evolutive
4/ It is a DIY ESS Kit, meaning you have to do it yourself (DIY), or with the help of somebody
About your New 5 to 16A EVSE to charge the LEAF, it is great because you could charge at 5A, 1100W, the slower the better for the ESS