That would depend on where the financial motivation to produce renewable energy is coming from.
A logical argument could be made that bitcoin encourages the production and advancment of green energy technologies by rewarding such efforts with wealth generation.
It's indeed likely more of this is happening due to poor government oversight. Though I suspect the demand for oversight and the desire for organic food will motivate this market to respond. If people are willing to pay money for this method they will likely pay to have it guaranteed in a rigorous inspection.