Around 3,000 people signed up to Energyhelpline.com's Huge Switch collective bargaining scheme to potentially switch energy suppliers in the first week after its launch.
The initiative is an alternative to the Big Switch campaign from Which? and enables consumers to get better deals on their gas and electricity.
It offers more choice on tariffs than the Which? version, takes less commission and offers services more tailored to an individual's needs, such as green deals.
All of the Big Six energy suppliers are considering getting involved in the project, while it also has the backing of the Department of Energy and Climate Change.
Energyhelpline.com director Mark Todd said his company is "very impressed" with the support Huge Switch has received.
"The appetite is definitely out there for consumers to get a better deal and we are positive that we can offer them a special price," he continued, adding people are under no obligation to switch after using the service so they have nothing to lose.
If you want to find out more about switching energy suppliers and how you could save hundreds of pounds in minutes, click here.
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