Not true at all. The grid can only take so much intermittent power before it starts causing major issues. 15% is about the maximum. As you approach this limit the problems caused by DG becomes greater and requires much more management. This has nothing to do with killing green power but making green power producers pay the same costs any other independent power producer would be required to pay. Realistically solar power customers should be compensated at the utility's avoided cost rate, not at the retail rate.