Kezo i intend to use my system as follows, charge the batteries overnight on Octopus Go for five hours @8.5p per Kwh (until i get a charger installed when i will go onto Intelligent Octopus Go). Then discharge the batteries fully during the day running my house and selling any electricity left over back to the grid. Say i have 45KWh worth of battery storage, and got them to up it to 50Kwh, using a Sunsynk 8.8 kw hybrid inverter would i be able to fill the batteries from 0% to 100% within these 5 hours? I see mention of a C value, with 0.5 C and 1C being regularly quoted, what effect does this value have, if any, on the speed of charching? The Dyness batteries are 0.5C rated but i cant find a rating for Fogstar. The Raystech states “Maximum Discharging Current 150A (1.5C)” and Fogstar states “Maximum Discharge 200A” does this mean its C value is 2? I also note that Dyness have a “Charging Temp Range” of 0-55*C or -20-50*C with “heating function” which i presume is at an additional cost Im looking at the options above and although the Dyness batteries look the same storage as the Fogstar batteries, the Fogstar have 100% DOD whereas Dyness are 90% (although i note your info is 85%) so the 45kwh is actually only 40kwh or lower. This comparison is not for the feint hearted but to my mind none of the two are on par with the Fogstar and both are a fair bit more expensive, per 5kwh, than the Fogstar. What i would like to know is would the difference in the specifications be enough for MCS to step in and force my installer to wait and get the Fogstar batteries that i want. I spoke to The Energy Trust and they were non committal on the subject as he has made me an alternative offer, although the girl said she would get further advice tomorrow.
Is the installer HIES registered, we had some problems with our installer, the HIES put pressure on the installer, it was quickly sorted out.
Unfortunately I have suffered a brain injury and occasionally I get confused and often say the wrong thing.