Plenty of studies look at renewables through rose colored glasses and are funded by groups with ideological agendas and financial conflicts of interest. This study is quite sober compared to them.
The study projects out the costs of going 100% renewable in Minnesota as the current plan calls for, so the assumption of 3x penetration is appropriate. I also don't see the basis for your claim that it triples/quadruples costs.
>>by fossil fuel interest
Which fossil fuel interests?
The study says that Minnesota could achieve the 100% zero carbon goal without unduly burdering the state's residents if it depends on hydroelectric and nuclear, neither of which is fossil fuel.
