Energex
http://www.energex.com.au/

Ergon Energy
http://www.ergon.com.au/

Country Energy
http://www.countryenergy.com.au/

Telstra
http://www.telstra.com.au/

UDIA
http://www.udia.com.au/

NABERS
http://www.nabers.com.au/

Green Building Council Of Australia
http://www.gbca.org/

Illuminating Engineering Society
http://www.iesanz.org/