Comments by "Joe Qi" (@i6power30) on "" video.

Keep in mind the lifespan of battery are a alot shorter than solar panels and it will degrade even without maximum usage, more of a function of time then just charging and discharging cycles.
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@DHClapp Where did you get the multiple decades number? everywhere I looked, it says LiFePO4 battery lasts up to 10 years or 5000 charge cycles.If you are doing load shifting on daily basis, you get 13 years very optimistically. Even if you just use it as backup power, and not charge / discharge frequently, it may get you 15 years best case scenario.
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@DHClapp id like to see evidence of that especially they haven't been around for that long, how can you predict how long they will last?
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Don't forget you also need to replace the costly inverter every 10 years
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Are you sure about that? If power on the grid goes out you can't use your own solar power during the day? Or do you mean you just at night?
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It's not just matter of efficiency but also resilience and redundancy. Grid is too fragile. Any natural disasters or cyber hacking can shut down entire grid. Distributed solar generation at home level makes it more resilient even if it costs a little more.
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For sure metering is not sustainable. Imagine you just paid for solar panels then your utility company cancels net metering. You just lost money
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@mewoozy2 My thinking is that once it's reduced to 75% after 5000 deep cycles, it will go down rapidly, like to 50% within a couple years, then to almost zero in next 3 years. IBut what you are saying is it will just keep going forever in ever slow decline for 20 - 30 years or more? I'd like to see your source for that.. By then, better battery technology will come hopefully.
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@pilotavery 50 years? I think this figure maybe related to EV battery usage where most of battery is not cycled on daily basis - think a 200 - 300 mile range car, the daily driving range being around 50 miles or less. That way the battery can last a long time. But if you are shifting load at home with say 10kwh battery pack, you could be cycling through 80+% of that battery pack every day. Then it'll dramatically reduce its lifespan. Any savings you get from load shifting will be offset by battery decay in this case.
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@Imaboss8ball I haven't seen any lithium battery last more than 15 years. After the initial 20% decline in the first 10 years or so, the decline becomes more rapid and will completely stop working in a couple years it varies from bettery to battery. We have data from this on many personal electronic devices.
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