A bit of a sideline, but I'm inclined to agree that simply counting renewable energy produced as carbon neutral isn't right. I'm not even thinking of the emissions incurred in constructing e.g. solar plants. Energy is a liquid market, any consumption takes up a part of the total production of the relevant area, and it's the average emissions in that area we should be concerned with, IMO.
It's probably not quite so cut-and dried. A gigafactory building solar to produce it's own energy certainly seems like it should get a steep discount in emissions. But where do we draw the line? I buy wind power. Does that mean it no longer matters how much power I use? That doesn't seem reasonable, either.