This is a ridiculous debate to even have.  The single largest hurdle wind/solar cannot pass over is "energy density;" ie, it simply requires too much 'space' to produce; on millions of acres of a limited resource: Land.  

Wind/solar would have to expand 10 times its current land use to come close to replacing carbon-based generation.  That doesn't account for future capacity needs beyond 2040.  Even the sea-based projects have significant return problems for the money spent.  Polis and Johnston are typical opportunists, preying on an engineering-deficient and largely uninformed electorate.  

If we stay on the 'renewables' path, the economics kill solar/wind long before we hit 2030.  2040 is a 'pipedream.'