Ok this deal requires some explaining so I'll do my best to give you all the details and steps to follow. Please note that this is specific to QLD, possibly even SE QLD and probably only beneficial for larger Solar Systems installed in your residential home or those who can generate high feed back to the grid per day.
I had a 15kw system installed just going on 12 months ago and shared my experience - details here. At the time it was very good value for money and I am so glad I went the larger system. I am currently predicted to have it fully paid off in under 2yrs based on credit generated through high FIT rates from energy retailers. After 1yr I haven't had a single electricity bill (was approximately $450/qrt) and have generated about $800-$1200 per qrt = $4000
When I first had it installed Origin and AGL wouldn't offer me anything competitive due to my solar system being over 10kw. Energy Australia (EA) at the time were offering 16.1c FIT so went with them. Earlier this year EA dropped their FIT rate to 11.5c and was no longer competitive. AGL then came to the party and offered me their 17c FIT rate so transferred over to them mid FEB.
This current qrt I am forecast to have a credit of just over $900. As I always do, I regularly check to see what's available and my brother who has a similar system to mine was looking to come over to AGL as well. He was with Origin at the time and upon making the move to come over to AGL, Orgin called him and offered him 20c FIT with no cap (as per their current plan of 15c FIT capped at 8kw per day then reverting back to 7c FIT) to stay.
Which brings me to this deal:
I called Origin to get the details as I was concerned they may have added in the fine print the 20c FIT is capped at 8kw but was pleasantly surprised to see it was unlimited with no cap. This deal can't be given over the phone with a typical Origin Energy Sales representative (as I found out) and had to call this number - 1800 557 700 and speak with a member from that team who can offer special rates outside of the standard.
As per the screen shot I have as the link, according to my spreadsheet (which works out exact costs by imputing exact usage and feed back to the grid figures) switching over to this Origin deal will increase my credit by approximately $800 per year. I have several other retailers costs on my spreadsheet that spits out the credit I would make and Origin beats them all.
This would only be beneficial if you have a large solar system and can feed back to the grid a good amount (30kw+ per day on avg) and only buying back from your retailer approximately 6-12kw per day.
FIT offer: 20c/kwh
Usuage costs: 24.915
Daily Supply charge: 116.061
Daily Solar meter reading charge: 6.974 (Origin say it's $6/qrt)
Side note - A good price for a similar system to the one I have with 3 phase power (including Smart meter, slightly larger panels 330-350w and Fronius Inverter) with quality materials and workmanship is about the $9k mark now. For anyone with single phase power you can still get an 8.2kw inverter with 10kw worth of panels (have to have a Smart meter installed so it caps your feed back to the grid at 5kw/hr as per Energex regulations) with same quality as above for about $6.7k
Sorry for the long post but if you have any questions or don't understand my method/reasoning for the deal feel free to ask questions. Happy to help where ever I can. I must stress and reiterate that I am NOT affiliated with any Energy/Solar company. I just love doing my homework and research and love sharing it with others who can benefit.