Texas deregulated most of the state's electricity markets in 2002, a move aimed at lowering electricity costs by letting consumers choose their own electric power providers and their own plans. Some parts of Texas continued to be regulated, including those that get power from municipal utilities, electric cooperatives and investor-owned utilities that operate outside the state's primary power grid.
As an Exelon company, Constellation Energy is part of one of the biggest — and historically most polluting — corporations in North America. Given Exelon’s vast production energy, ranking on the PERI Toxic 100 list is perhaps not that surprising. The good news is that Exelon is upfront about its room for eco-friendly improvement and make it easy for Constellation customers to go green, too.
Know that Green Mountain’s cheapest advertised plans are all variable rate plans. “Pollution Free,” “Pollution Free Try 3,” or “SolarSPARC 10 Try 3” all advertise a great initial rate — a full cent below Pennsylvania’s 8.49 cent “price to compare” — but its variable rates means the company can raise them at any time. The two “Try 3” plans just lock in the low introductory rate for three months instead of one. The flipside of fixed rate: Should prices fall, you’ll be locked into a contract with a constant, elevated rate for two more months.
Statement regarding savings: How your price compares. This is usually a generic statement that you may or may not be getting a better price than you would from the utility company, also known as the Electric Distribution Company, or EDC. Your local EDC sets a “price to compare” and any competitors’ plan may be lower or higher by several cents a kWh.
You can organize and shop by pricing at YOUR individual usage level, which allows you to shop and compare energy plans based on the rates you’ll actually see appear on your bill, inclusive of taxes and hidden fees. You won’t be mislead by the “teaser rates” tied with higher usage levels that many homes never experience, as their usage level never reaches that pricing tier.
 1.     Contracts:  Before, there were no contracts.  You signed up or you didn’t.  When it’s the only game in town, you have to play by their rules.  Nowadays, you’ll see these ultra-fabulous rates bandied about but it’s only by carefully scrutinizing the fine print that you’ll discover those wonderful rates come with a one-year lock-down or other catches.
Canadian electricity is cheap at 10 US cents per kilowatt hour, which is reflected in their high average electricity usage. US electricity prices at 0.12 $/kWh are also quite cheap internationally. In India and China they are very cheap. The UK is in the middle at 20 cents. It’s relatively expensive globally but not too bad for Europe, where most countries pay a high share of tax on their power.
Before 1997, all energy services were provided by the utility with prices regulated by the Public Utility Commission to match the wholesale price of energy – subject to change as often as once a month. Following the law’s passage, however, prices became “deregulated”, meaning alternative suppliers could provide energy supply at different rates than the PUC-approved price of energy.
Several states have Community Choice Aggregation (CCA) laws that allow local governments to pool their community’s electricity need in order to purchase power on their behalf.  While savings is not always guaranteed, many municipalities are able to obtain discounted electricity prices. You’ll have to check with your state regulatory commission. You can get started by clicking on your state in this map.

All forms of electricity generation have positive and negative aspects. Technology will probably eventually declare the most preferred forms, but in a market economy, the options with less overall costs generally will be chosen above other sources. It is not clear yet which form can best meet the necessary energy demands or which process can best solve the demand for electricity. There are indications that renewable energy and distributed generation are becoming more viable in economic terms. A diverse mix of generation sources reduces the risks of electricity price spikes.

The electric power industry is commonly split up into four processes. These are electricity generation such as a power station, electric power transmission, electricity distribution and electricity retailing. In many countries, electric power companies own the whole infrastructure from generating stations to transmission and distribution infrastructure. For this reason, electric power is viewed as a natural monopoly. The industry is generally heavily regulated, often with price controls and is frequently government-owned and operated. However, the modern trend has been growing deregulation in at least the latter two processes.[5]