People on this site keep saying that, but I have yet to see any proof.
This is a forum site; have you gone looking for 'proof'?
There is no reason why over the course of 20--30 years we couldn't invest in more energy storage
I'm going to have to rephrase my statements a bit. Tense problems, mostly. We couldn't, and currently can't, produce enough green energy to replace coal&oil economically, IE without making major sacrifices in quality of life elsewhere.
Somehow I dropped the battery part of my post as an additional option. Where the cheaper and more efficient the storage technology is, the more likely you are to store power rather than just build out your renewable energy infrastructure and just 'throw away' power during 'good' power production days.
Still, we appear to be on the cusp of radical changes. 30 years ago solar technology produced less power even at 100 times the cost. Lithium-Ion technology was a gleam in somebody's eye, much less possibly poised to take the market as the cheapest battery technology.
Lead Acid: $.194/wh.
LiIon: $.236/wh.
If ONE of the recent battery technologies that I've read about succeeds, or Musk's factory to cut the cost of his batteries in half, that means that LiIon will actually be cheaper than Lead-Acid. This would be huge.
Meanwhile they keep working to cut the cost of solar panels even as they increase their efficiency.