<snip>random whacko comments</snip>
reply>Come back in 5 years time when the batteries are 10 years old and failing like the bridges and schools and universities.
This however is a valid point to make. In my experience with battery systems, regular maintenance and replacing failed units is one of the things that people are quick to not do on preventative schedule. Instead, they wait until the unit is completely dead and then gasp at the cost of battery replacement. Based on how companies like PG&E do not do regular maintenance on their lines, it doesn't bode well for the batteries.
To be fair, they were all valid points to make. The gonorrhea thing just kind of set the tone wrong.
replyUnless all batteries are installed at once and will fail after a fixed duration it won't be a big issue. After 10-20 year 2-5% batteries will fail and will have to be replaced, along with any new capacity addition. We can emphasise on diversifying the supply chain or having multiple technologies so that a Covid like scenario doesn't completely conks the system, but it isn't much different from any other system we use. And in case of battery, we actually get a real-time info about its health and so can easily calculate capacity of the system. Batteries go from 90% to 0% in extremely rare case.
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