The One Big Switch campaign needed 25,000 people to sign up to negotiate a twelve per cent saving, but that turned out to be a very conservative target.

"We have managed to get almost 200,000 people together in order to get a group discount on electricity and gas," One Big Switch's Lachie Harris said.

Harris says even he was surprised at how willing power providers were to drop their charges.

• Electricity price discounts
• Making the Big Switch
• Australia's billion dollar power drain

• 16.5 per cent in New South Wales
• 18.5 per cent in Victoria
• 15.5 per cent in South Australia
• 12 per cent in Queensland

"They are great discounts in a really competitive environment," Harris said.

The opportunity to sign up finishes next month.

Today Tonight's latest bill stories

Find a cheaper energy provider and apply online to switch today with Moneyhound

• One Big Switch - www.onebigswitch.com.au