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> Seems like you're looking at 80% of rated efficiency after 20 years If you are living off grid, that might be an issue although it could be fixed by just get

by mrep 7y ago

> Seems like you're looking at 80% of rated efficiency after 20 years If you are living off grid, that might be an issue although it could be fixed by just getting some more solar panels later or oversupplying at first. However, for people still connected to the grid, they can just use a little more later on from the grid so I don't see what the big deal is.

bArray 7y ago
> [..] they can just use a little more later on from the grid > so I don't see what the big deal is. If you had panels overlaid you could easily replace them - or even upgrade them as technology gets better.