Over a year, you could save nearly $100 by choosing the green plan. But it’s important to note that Constellation’s attractive initial rates will very likely not be around for a second year. According to the customer reviews on Consumer Affairs, this new contract usually jacks up the price. It offers great rates for new customers, but it may not be worth it to stick with them for more than an initial contract.

In deregulated markets such as Texas and Maryland, the state government may require the incumbent utility energy provider to allow for unlimited competition within the marketplace, where the consumer is free to choose any electricity provider. Electricity provider switching is only practical if a customer is either buying from a utility or is at the end of a fixed-price contract with a provider.[citation needed]
A CLEC is a local exchange carrier providing local telephone service in competition with the incumbent local exchange carrier (ILEC). Midcontinent Communications is an example of a CLEC serving South Dakota customers. See a complete list of CLEC companies (124 KB). Some companies, such as Qwest, Midstate Communications and Knology, can be both a CLEC and an ILEC (see above) in different service areas.
Variable-rate supply plans, as the name suggests, have a rate that varies based on the market price of electricity. Seasonal and market fluctuations can affect supply rates. While variable-rate supply plans can allow you to take advantage of market-price lows, there is the possibility of paying for high supply rates when demand is at its peak. These plans offer great flexibility.
Switching electricity supplier could shave pounds off your bills. But it’s not always about how much hard cash you could save. You might be fed up with poor customer service, you might want greater visibility of your usage through an app or you might want to choose your supplier based on their green credentials, or whether they supply a smart meter.
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