The biggest help is Nuclear power. But the Greens are fighting it.
Germany is a prime example. Sure they have built out a lot of Solar and Wind but they are replacing Nuclear with COAL!
The say in 20 or so years ago they can replace coal with "renewables" which is just pushing it off and pumping out carbon.
Solar will not work because of storage.
And no Tesla has not solved that problem. Vermont Yankee which was a small nuclear plant produced on average 4703 GWh per year. It would take 1,287,612 Tesla power walls to provide a 24 hour reserve. The cost would be 4,506,642,000 and that is just for a 24 hour storage system. In the winter you could have many areas where solar output is close to zero for more than a day but if you want cut that in half and put it at 12 hours. And that is JUST the battery costs. Add in solar and wind turbines to match the 4703 GWhs and the math gets super ugly very quickly.
And Vermont Yankee was a small plant. BTW it is has been replaced with carbon producing fracked natural gas... Yea... Yell the greens!
BTW the Saint Lucie Nuclear power plant in Florida which is far from the largest produces just under 3 times as much power. So figure about 3 million power walls.