$40,000 (plus GST plus installation) at Harvey Norman:
http://www.harveynormancommercial.com.au/IgnitionSuite/uploads/docs/HN0678_BlueGEN_MiniPowerGenerator.pdf
I watched the Today Tonight video on Bluegen's and the trial. Are they not meant for households? A household would have to have one for about 40 years to get the value?