I am not advocating they you should avoid them at all costs, but I've had 2 of these companies come to my door recently. The first one I didn't have the info he needed to look at handy, but with the second one I did. He looked at my bill and added all the supplier and transmission fees together to try and tell me I was paying around 16 cents per KWh, when in reality, what I had listed was 2 suppliers, each supplying a portion of my power (about 500 KWh for one and 180 KWh for the other one) To determine the real cost of your supply, you have to add each suppliers supply and transmission cost, multiply that by the KWh they covered, then do the same for any other suppliers. Add all those numbers together, and divide by the total KWh. For instance, for me, it was 500 KWh at about 8 cents, and 180 at about 7.9 cents, so 500 * 8 = 4000, 180 * 7.9 = 1422, which total to 5422. 5422 divided by 680 (total number of KWh) gets me to 7.97 cents per KWh average. Sorry for the math lesson, I just wanted to make sure everyone knew what to look for, and not to let these suppliers ( who are either not trained correctly or lying) walk over you. Good luck, and if you want to guarantee your rates (Duquesne is a variable rate, other suppliers do offer fixed) I recommend checking out www.papowerswitch.com to find local suppliers and their current deals. Just be careful, some of them offer very low fixed rates, but the rate will change to variable after the terms are up, and some of them only last as little as 3 months, then the variable rate could be jacked way up.