There is an AFR article on the Ausgrid sale here:
http://www.afr.com.au/p/business/technology/newcastle_homes_to_generate_smart_TzvcorMsYapWGL9QUObb3L
Mentions a few more specifics of the deal such as that :
"The fuel cells will feed the grid for the first 18 months of a two-year trial before households can choose whether to have them power their homes".