I found this info from another Australian site: http://forums.whirlpool.net.au/archive/1615103 "i too have a Daikin Inverter Ducted System, it uses heaps on standby.. 97 watts an hour .. that's 2.3kWs every day. there is a big outdoor plastic on/off switch next to the outdoor unit. you can turn it off there. the only thing you MUST remember is when there is a hot / cold day coming up you MUST turn that switch back on 2 hours at least before you turn it on inside (to circulate it's oils and things) or you will kill it pretty quick yearly total: about 840 kWh's or @ 19c/kW ~$160 just to have it sitting there"