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Thread: Household solar

  1. #1
    olbod Guest

    Household solar

    Bloke next has a double row solar system on his roof.
    He is the only occupent.
    I was told that he has not had a light bill this year and every six months Ergon pays for what he has supplied them.
    I know how this works but not sure of the details as to units or thingy's that are measured as be used.
    I am toying with the idea of going solar but dont know how to measure what I am charged for and what I might expect to be paid back if I use less than what is generated.
    My average quarterly bill is around $250.
    ?

    Ta.

  2. #2
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    https://www.solarmarket.com.au/solar...gs-calculator/
    Olbod, see if this link helps. Just punch in the details.

  3. #3
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    Hi,
    We installed 5kW (20 panels) in April. North facing at 20 deg, Hobart.
    Todate we have produced 1,389 kW from the pannels.
    24kW/day is the max so far, the worst day was about 3kW.

    Cheers

  4. #4
    olbod Guest
    Quote Originally Posted by austastar View Post
    Hi,
    We installed 5kW (20 panels) in April. North facing at 20 deg, Hobart.
    Todate we have produced 1,389 kW from the pannels.
    24kW/day is the max so far, the worst day was about 3kW.

    Cheers
    Thanks Vern.

    Aus mate thats interesting.
    Up here in God's country I would say that our production would be consistently high.
    On your last light bill, how many KW did you get charged for ?
    Would you now have produced more than you used ?
    My main interest is, how much do they pay per KW for the power that you have supplied back to them ?
    I heard somewhere that it 44 cents per KW but then I think I also heard that it was 8 cents.

    Cheers.

  5. #5
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    Our 5kW system in Brisbane is designed to deliver an average of 22 kWhrs/day. West facing. We get 50c per exported kWhr which works for us as no one is home during the day, which has cut our bill by 50% to 70% depending on the weather.

    Here's our data for the YTD.

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    Disco 3 V6 SE 2007

  6. #6
    p38arover's Avatar
    p38arover is offline Major part of the heart and soul of AULRO.com
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    We installed ours 4 years ago and the interest-free Green Loan has been paid off by the savings. Prices have dropped dramatically since then. I do wish I'd had a 5kW system installed instead of a 3kW system.

    Our live outputs are here (missing recent stats for consumption owing to a failed USB-internet adapter which was replaced this week and most of August-Sept after a blackout which took down the monitoring whilst we were overseas).

    p38arover 3.040kW | Live Output
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  7. #7
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    Hi,
    Quote Originally Posted by olbod View Post
    On your last light bill, how many KW did you get charged for ?
    I have yet to get a complete bill period on solar.
    The panels went on in April and the meter was changed over in May. I wasn't supposed to run the panels with the old meter as it ran backwards.
    I couldn't resist the temptation, just kept an eye out for the meter man.

    Quote Originally Posted by olbod View Post
    Would you now have produced more than you used ?
    Yes, the digital meter reads 818kW used from the grid, 957kW exported.

    In winter I use about twice what I produce.

    In summer I expect to produce more than twice what I use.

    Quote Originally Posted by olbod View Post
    My main interest is, how much do they pay per KW for the power that you have supplied back to them ?
    I got in early enough to get a 28c buy back tariff, which is cost price.
    This is only guaranteed for 5 years, but should be long enough to make the exercise profitable.

    Cheers

  8. #8
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    Quote Originally Posted by olbod View Post
    Bloke next has a double row solar system on his roof.
    He is the only occupent.
    I was told that he has not had a light bill this year and every six months Ergon pays for what he has supplied them.
    I know how this works but not sure of the details as to units or thingy's that are measured as be used.
    I am toying with the idea of going solar but dont know how to measure what I am charged for and what I might expect to be paid back if I use less than what is generated.
    My average quarterly bill is around $250.
    ?

    Ta.
    Just pay your bill, half that will likely be service charge, what is you water heating? if its electric it is likely that is most of the rest, you use very little power, its still very viable but only really with larger bills

    All the above owners basically have been of no help but to brag to you about their solar as they were all fitted in large feed in tariff days

  9. #9
    olbod Guest
    Thank you all.
    I think I will stay as I am for the moment.
    I had a note from Ergon yesterday saying that with the carbon tax removed my future bills would be adjusted.
    I will wait and see.
    My initial thoughts about solar was that because I use very little at night,
    only one lamp on because me place is pretty open plan, and being on my own and living here in the tropics, I might generate enough to get some coin back that I could put toward my rates.
    During the day no lights, small washing machine wash once a week in cold water and a few hours on the computer.
    Night, five minute shower, one light and a few hours tv.
    If I am reading my bill for the last quarter correctly I averaged 10.3 kw daily.
    This is what gave me the thought that I could run solar at a profit.
    But that would now depend on the current going return rate I guess.

  10. #10
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    Quote Originally Posted by olbod View Post
    Thank you all.
    I think I will stay as I am for the moment.
    I had a note from Ergon yesterday saying that with the carbon tax removed my future bills would be adjusted.
    I will wait and see.
    My initial thoughts about solar was that because I use very little at night,
    only one lamp on because me place is pretty open plan, and being on my own and living here in the tropics, I might generate enough to get some coin back that I could put toward my rates.
    During the day no lights, small washing machine wash once a week in cold water and a few hours on the computer.
    Night, five minute shower, one light and a few hours tv.
    If I am reading my bill for the last quarter correctly I averaged 10.3 kw daily.
    This is what gave me the thought that I could run solar at a profit.
    But that would now depend on the current going return rate I guess.
    10-12 year payback on a good quality system with majority export, which you will be....less on cheaper, but cheaper is just that

    Keep in mind the retailer shifts your peak rate up on a solar deal, so if you do not get the balance right, you will further worsen the return on your investment. also the feed in tariff's are low and in QLD I'd imagine its .08c

    Don't fall for gimmicks that salesman use, the 2 most popular are

    Interest free.....you have simply prepaid the interest in your purchase price

    "we pay you Xc feed in tariff" again, you simply pre pay it

    For those that have fallen for either of those, sorry, you've been taken for a ride

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