Sorry Gordon- not great at explaining this stuff. Hopefully I'm getting it right! Slight advantage is over the period they continue to pay for every kW produced and a net vs gross calculation. I'm adding in all our details for anyone who may be in the same boat - I realise you Gordon have an advanced understanding of all this.
So the way I see it is that on net we would only get 6c for the DIFFERENCE (gen minus usage = export) in kW over the hours where generation is higher than usage. While on gross we get 6c for every kW generated. And we pay the same for usage on either. And as we only have a small system, the net exports, as in the figures below will be negligible.
We currently get 20c for every kW gross. Then pay usage on TOU scales, so for example we currently wash our clothes at 4am.
At end of year we should be going to net, so lose 20c for each kW. And then pay same TOU rates for usage. So we would start washing machine etc when solar is generating most, around 11am - 5pm.
But, we will now stay on gross until ? So get 6c/kW and still pay same TOU rates. Basically extended, lower $ gross FIT
Our 2kW system suffers from neighbours trees, espec in winter. We currently (november) generate hourly from 10am: 0.4, 1.1, 1.8, 1.7, 1.6,1.5, 1.1, 0.5: use over those hours is 0.2, 0.1, 0.2, 0.2, 0.2, 0.1, 0.1, 0.1, 0.2:
We average around 12kW day usage and summer is the only time we generate more than overall usage. OPHW uses 5kW per night and although it is at a 'cheap' rate that is a sgnificant usage we want to remove, shift or reduce.
Our problem with net is that without moving the hot water load we cannot shift much other load to our best generation times. Our usage ramps up most from 5pm to 11pm, and 6am to 9am. Our generation is from 10am to 6ish (summer).
Hope the above gibberish helps somebody! Have I got it right? VERY happy to recieve advice.