May be he reffering to the Basha dam(?) issue, the dam is design in such a way that reservoir is in NA and the Grid area would be in NWFP. Therefore according to the law, NWFP will have control overy the electricity. That made some people from NA angry and they protested.
I don't think so. The Bhasha Dam project is up in the air at the moment. The project was pushed by the Musharraf administration, so there might have been protests from those who would be displaced/upset about not being consulted.
As for the power generation issue going to Pakhtunkhwa: 1. It was proposed by the Mush. Administration not the provincial authorities 2. The grid area is pure speculation, the most northern power station is in Kohistan that does not mean that the project could not include a power station to distribute the hydroelectric. As I mentioned before, the issues of NA were towards the Center not Pakhtuns, in fact Pakhtunkhwa has its own concerns with Islamabad related to hydropower and royalties.