If you take a moment to read what you replied to, you will see that your each assertion is directly disposed of there: there is no need for "massive overbuild"

If you take a moment to read what you replied to, you will see that your each assertion is directly disposed of there: there is no need for "massive overbuild" of renewables, or for much storage. The backup NG infrastructure is already in place and in use, and will continue working. Germany's only problems just now are that Russia turned out to be an unreliable supplier, and their renewables build-out is incomplete. Both are being dealt with.