I think some news outlets are showing an aerial photo of the NRG plant, down on the river. I think this plant isn’t on Yahoo maps, etc., yet.
Here is the satellite view from Google Maps: http://maps.google.com/maps?f=q&source=s_q&hl=en&geocode=&q=wellwyn+rd,+portland,+ct&sll=41.576223,-72.637138&sspn=0.013965,0.02017&ie=UTF8&hq=&hnear=Wellwyn+Dr,+Portland,+Middlesex,+Connecticut+06480&ll=41.558548,-72.594073&spn=0.006984,0.010085&t=h&z=16
You can see powerlines crossing the river...