Silicon Valley, powerful as it is, should be wary of ticking off 67 million Americans.PJM Interconnection is a regional transmission organization that manages the biggest electricity grid in the US, covering all or part of 13 Midwestern and mid-Atlantic states plus the District of Columbia. In all but four of those states, plus DC, average annual power bills in the year through May increased faster than the national average, which was eyewatering in itself at over 6%.1Plug prices, rather than pu...