PJM is the Pennsylvania-Jersey-Maryland grid which is very well managed and at least in Pennsylvania has a fair amount of coal generation. You can read more about their operation at http://www.pjm.com/Default.aspx
Pennsylvania = blue state, blue governor
Jersey = blue state, repubbie (greenie) governer who the demo's want to look good
Maryland = blue state, gov’ment workers, blue unions
Texas ??? red state, red gov, Bush state, red voters, no unions