Shopping for a plan based on renewable sources is no different than shopping for any other kind of plan — you calculate your costs the same way, look for the same fees, and weigh in customer satisfaction and other perks. The one thing that’s different is also looking at what percentage of your energy comes from renewable content in the EFL. That number can swing from as low as 0 percent all the way up to 100 percent, with the majority of plans that partially offset energy with renewable content hovering around 15 percent.
The price to beat seemed to accomplish its goal of attracting competitors to the market during the period through January 1, 2007. It allowed competitors to enter the market without allowing the incumbents to undercut them in price. It has also given energy consumers the ability to compare energy rates offered by different providers. The less-regulated providers undercut the price to beat by only a small margin given that they must balance lower prices (to attract customers and build market share) with higher prices (needed to reinvest in new power plants). Due to the small difference in competing prices and slow (yearly or so) "buying" process, price decrease due to competition was very slow, and it took a few years to offset the original increase by "traditional" electric providers and move to lower rates.
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.