I think at some point in renewables development, it is not only going to be about base load generation, but we will need overbuild infrastructure with surge demand. Something like ideal syn-gas production that is not some much energy efficient but a good way to burn off excess wind and solar generation into something that is useful in the future, or gravity generator towers...
Unfortunately I'm not deep enough into it to have a good intuition on what that will end up looking like. But for all of this to work they are going to need to build a fair bit more than 17GW to supply 17GW.
But yes Alberta turn towards renewables has been impressive, and the speed it's happening too.
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