Retailers Include: AEP Energy , APG&E Energy Solutions , Calpine Energy Solutions , Constellations NewEnergy, INC , Crius Energy , Direct Energy Services LLC , Dynegy , ENGIE Resources , Entrust Energy , IGS Energy , Just Energy , Liberty Power , Next Era Energy Services , Nordic Energy Services, LLC , NRG Energy INC , Source Energy , Spark Energy , Starion Energy , Stream Energy , Talen Energy , TransCanada Power Marketing LTD. 
A lot of these financial structures ultimately boil down to being a form of government guarantee, which means that they can’t be scaled up to “solve” countries’ power problems because the governments cannot carry all the liabilities. Countries try to introduce the private sector into power generation precisely to reduce such guarantees, which then end up returning through the back door in the form of government support.
Aided by the fact that the Evergreen State doesn’t collect a corporate income tax, cheap power has attracted industries that tend to consume biblical amounts of electricity, from aircraft production to software development to aluminum refining. Major companies in these spaces that are either headquartered or maintain a significant presence in the state include Microsoft , Amazon.com , Expedia .com and Boeing.
There are many reasons for this but I’d like to focus on African power utilities. Power utilities are a very important part of the chain for delivering electrical power to end users. One of their key roles is to purchase power that has been generated by others, sell it on to end-users and to collect revenues. They are vital for extending grid-based power to consumers and to ensure regular and efficient power supply. As they collect money from end-users and pay it on to other players in the system, they are also vital in ensuring money flows through the entire power sector.
In Pennsylvania, you can choose from the EGSs operating in your area, or stay on with your default provider — your EDC. Currently, less than half of all Pennsylvania’s residential customers have made the switch. If you’re among that number, moving to an EGS could get you cheaper rates, better rewards, and more say in what fuels generate your electricity. Whichever you choose, your electricity will get to you just the same because the EDC is always responsible for delivery.
Electric companies in Maryland post their rates for residential customers on their web sites. See list of electric company web sites in the column at left. To find out about the rates offered by electricity suppliers in your area you will need to contact those suppliers directly. The Maryland Public Service Commission maintains a list of licensed electricity suppliers at: http://webapp.psc.state.md.us/intranet/supplierinfo/electricsupplier_new.cfm.
There are a variety of different types of gas and electricity plan that are currently out there for prospective customers to consider. Some plans offer fixed rate deals , these allow you to be sheltered from price rises over an agreed period of time. Other plans allow you to manage your entire account online, making it easier and more efficient for you to handle your energy supply.