It's just a listing of facts. Sure, their is a bit of spin on them, but the facts speak for themselves. It's not an easy problem. It's also pointing out that expecting innovation to deal with the issues like battery size and weight is wishful thinking. We shouldn't be depending on those advances to save us. What facts are wrong?
As for hydro, good luck. The reason new hydro isn't being made is because the prime locations are already taken, and hydro has it's own impacts, including pretty unpopular revocations of people and stress on wildlife. Nuclear, I agree, we need much more investment there. It's expensive, but unlike solar and wind, it is reliable as baseload, which is what is needed. Unfortunately it doesn't respond to changing supply easily, so isn't a great paring for variable renewable sources.
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