| Electronics > Power/Renewable Energy/EV's |
| Solar Upgrade AGAIN |
| << < (36/37) > >> |
| EEVblog:
Installing the two extra 440W solar panels into a Hoymiles microinverter connected to the Generator port on the Deye Hybrid Inverter |
| darkspr1te:
Re: power out on generator feed I spoke to a local Deye retailer on the subject and he was not 100% sure but said it could be that it's outputting a small amount for the generator to synchronize to , if the input is disabled then that signal should disappear. he does not have that model so we could not check for the option (here in africa they sell different models) darkspr1te |
| Siwastaja:
--- Quote from: EEVblog on July 24, 2024, 05:33:52 am ---LiFePO doesn't have the same exothermic runaway reaction as lithium ion. --- End quote --- LiFePO4 is li-ion, and it very much has the exact same exothermic runaway reaction as other common li-ion cathode chemistries. Onset temperature is higher and amount of released energy smaller, but the risk is still very real and thermal runaways of LiFePO4 packs commonplace, especially with hobbyists and manufacturers who get the false sense of security of the "safer" cathode material and therefore lack other ways of quality control and safety (passive and active). Demonstration videos of single LiFePO4 bricks not catching fire when shorted are not relevant when in application many of them are stacked together so that more heat is localized during failure, easily exceeding the ~350degC or so thermal runaway onset temperature. |
| EEVblog:
--- Quote from: darkspr1te on August 20, 2024, 08:02:26 am ---I spoke to a local Deye retailer on the subject and he was not 100% sure but said it could be that it's outputting a small amount for the generator to synchronize to , if the input is disabled then that signal should disappear. he does not have that model so we could not check for the option (here in africa they sell different models) --- End quote --- Thanks. Correct in that if you disable it the value drops to zero. 84W is lot of power though, and I can't imagine where that is being dissipated. Can't be inside the Hoymiles inverter, that just seems implausible. If there is genuinely 84W being pissed away at night then I certainly don't want that. Someone has suggested I could use Home Assistant to order the Deye to disable the gen input after operational hours. But that's a kludge. |
| EEVblog:
Troubleshooting the mystery 84W |
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