I'm thinking about getting solar PV installed - in the 14 months I've been with Energy Australia I've had 4 price rises and the January's is going to be a doozy. Then there's the carbon tax hike coming in June... Seems like it's the same story no matter who you're with. So I'm looking into solar. I'm a bit price sensitive. The solar crowds are saying that I shouldn't look at the initial capital outlay alone though because I can take advantage of RECS and STC's which are traded on the green energy market like stocks. I'm trying to get a handle on what these things are, but it's pretty disjointed. There's a base level of STC's, a deemed level and an eligibility based solar credit level which increases the number of STC's you can trade for the same sized unit... arrrgh. Can someone please explain to me in plain engrish what the frack these are and how they work!? Because if they mean money in the bank, I might stretch the budget and get a bigger PV system, because once the dust settles, the net capital outlay will still be within the budget. Any simple explanations will be appreciated, because the government and other sites are quite disjointed about it all. If you're a solar guru, read on and feel free to comment on my thinking/approach. I know I've missed out on the premium feed in tarrif of $0.60/kwh so will be eligible for the $0.25kwh rebate instead (which is small premium over current typical consumption prices), so I'm using that in some basic pay back calcs. I've got a fair handle on my annual power consumption given the 10 yrs of power bills in the shoe box... so as a minimum I want to cost a system that will create at least an average annual consumptions amount of power. If the bank and the roof can stretch to a bigger system I will (hence wanting to understand RECS, STC's, solar credits et). In about 5 years the small premium will evaporate and the rebate will be one to one... if I can manage a system that produces an average years consumption, then once the unit has paid for itself, that effectively means, free power Is my thinking right?