In Australia green energy is accredited under the GreenPower scheme whereby all distributors are government audited bi-annually to ensure that customers are getting exactly what is described in their purchased products.
In the 2009 settlement period there were 904,716 GreenPower customers Australia-wide, accounting for a total of 2,194,934 MWh of electricity generation, a 10% increase over 2008.
[1][2] By the 2014 settlement period the number of GreenPower customers Australia-wide was at 497,406, and total purchases accounted for 1,279,281 MWh.
[3] The largest nationwide distributors were EnergyAustralia, Origin Energy, and TRUenergy.
As of 2008 these companies offered a residential GreenPower accredited program: