nice report.
As far as I know, one remaining problem with renewable energy is the accumulation.
If it's night and there is no wind, you have to produce energy somehow. And coal/nuclear/gas power plants have the advantage to be able to modulate their energy output as the demand fluctuates.
Tesla is building huge new-generation accus to solve that problem, but they are still somewhat preliminary.
Maybe that's why we are still burning it, even though we know we have to get out of coal asap.
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That is a good point, @sco! The electricity from wind and solar needs to be used pretty rapidly, often leading to surplus at night, and in cases problems during the day when many consumers use it at once. This is absolutely a problem that need to be solved, but according to the report we can expect to see better battery technology in the coming decade, which is one of the reasons why these forms of electricity will eventually become viable and cheaper than unsustainable energy.