Fixed-rate supply plans offer price-protected supply rates for the length of a term agreement. The price per kilowatt hour (kWh) will remain the same throughout your term, even if the market price fluctuates. A fixed-rate supply plan can range from three months to five years, so it’s important to find the term length that works best for your situation.
Ameren Illinois is the only company that delivers electricity to Champaign residents (Ameren Illinois, 800-755-5000). However, there are many retail electric suppliers who supply electricity. Residents may choose to receive their supply from Ameren or another provider, residents are encouraged to research before choosing a supplier. Visit this page on the Ameren site for more details.
When it comes to the electricity itself, there is no difference at all. A cheap electric supply is the same electricity, it's simply provided by a new supplier (unless you opt for green energy - more on that here). As suppliers buy and generate different sets of energy they also have different prices. What's more, you might be on a tariff that is simply more expensive, such as a standard tariff. If you decide to switch electricity don't equate a lower price with worse service.