The THEORY...it all sounds so good. And I truly wish it was as good as it sounds. Moving towards reliable and viable green energy is TREMENDOUS and the absolutely right thing to do.
But...
Spain in 2013 was a leader in the green energy market and expected to be above 80% by now.
https://www.theguardian.com/environment/2014/jan/06/wind-power-spain-electricity-2013. The problem is the only gains came at a massive price to the Spanish government and as a result, they capped production in 2014 for 2015 and 2016. Today...the rates remain at 2013 rates with no progress.
Spain Green Energy Production Crippled Withou | The Daily Caller
AND...it has come witha MASSIVE cost. In terms of investment, "Each wind industry job in Spain was estimated to cost $1.3 million to create. Only
one out of 10 green jobs created in Spain was permanent." The nations largest green industry leader is threatening bankruptcy, despite the massive influx of government cash. Obama invested 2.2 billion of US Taxpayer dollars into this firm as part of his green energy initiative. Its looking like the company will suffer the same fate of similar green energy leaders in the US.
We can do better...but we are nowhere near making 2050 a reality.