In this report, everything is reduced to a $ amount so that a direct comparison can be made between methods. The amount is a representation of raw material/manufacturing/logistics/installation/etc, possibly reductive but intended to be all-encompassing. So, we can use that amount to judge where resources can be used most effectively - and the conclusion has to be that residential solar is a misuse of those resources.
The same materials and labor could be put to better use building large-scale systems, which would produce more electricity with less environmental impact from inneficiency.
But that’s cost, it is better for the environment and that’s the point. It will also provide stability to household bills.
In this report, everything is reduced to a $ amount so that a direct comparison can be made between methods. The amount is a representation of raw material/manufacturing/logistics/installation/etc, possibly reductive but intended to be all-encompassing. So, we can use that amount to judge where resources can be used most effectively - and the conclusion has to be that residential solar is a misuse of those resources.
The same materials and labor could be put to better use building large-scale systems, which would produce more electricity with less environmental impact from inneficiency.
But those projects are not happening on a scale quick enough to fight climate change so individuals doing what they can is important.
There are more aspects also like people having control of their money and being self sufficient.