Solar panels

9/11
  • Grease Monkey
    Grease Monkey
    1 year ago
    Quoting GGUser260 on 07 Jan 2023 10:49 AM

    Mutiny on the way to the island!

    Quoting Grease Monkey on 07 Jan 2023 01:34 PM

    Show me the island

    Quoting GGUser260 on 07 Jan 2023 02:07 PM

    Close your eyes and you will see it

    It's a circuit 
  • obisteve
    obisteve
    1 year ago
    Quoting GGUser260 on 07 Jan 2023 10:49 AM

    Mutiny on the way to the island!

    Quoting Grease Monkey on 07 Jan 2023 01:34 PM

    Show me the island

    Quoting GGUser260 on 07 Jan 2023 02:07 PM

    Close your eyes and you will see it

    That's what they told Lincoln six-echo too.
  • Humbug
    Humbug
    1 year ago
    Quoting paulybronco on 05 Jan 2023 02:33 AM

    The bill is user dependent of course  but the majority of our 20kw usage per day comes from the 12hrs the pool pump runs. We average 34kw of generation per day with summer being the peak of course generating up to 81kw. The feed in tariff has gone from the original .25c now down to .05c and with the daily meter fees etc etc there's now a out of pocket.  

    Hey PB what size is your pool? I was running mine for eight hours a day on two four hour cycles, have cut it back to six and have had no noticable change in the pool and am now saving fourteen hours a week in power. It will be interesting to see how this reduction is reflected in the bill. 
  • paulybronco
    paulybronco
    1 year ago
    Quoting paulybronco on 05 Jan 2023 02:33 AM

    The bill is user dependent of course  but the majority of our 20kw usage per day comes from the 12hrs the pool pump runs. We average 34kw of generation per day with summer being the peak of course generating up to 81kw. The feed in tariff has gone from the original .25c now down to .05c and with the daily meter fees etc etc there's now a out of pocket.  

    Quoting Humbug on 08 Jan 2023 12:05 AM

    Hey PB what size is your pool? I was running mine for eight hours a day on two four hour cycles, have cut it back to six and have had no noticable change in the pool and am now saving fourteen hours a week in power. It will be interesting to see how this reduction is reflected in the bill. 

    Its a biggie.....92000litr plus.....when we reduce the summer time running the chemical bill increases due to the sun chewing the chlorine. Winter the hrs get cut back to 8.5/9.5 
  • 408
    408
    1 year ago
    Quoting paulybronco on 05 Jan 2023 02:33 AM

    The bill is user dependent of course  but the majority of our 20kw usage per day comes from the 12hrs the pool pump runs. We average 34kw of generation per day with summer being the peak of course generating up to 81kw. The feed in tariff has gone from the original .25c now down to .05c and with the daily meter fees etc etc there's now a out of pocket.  

    Quoting Humbug on 08 Jan 2023 12:05 AM

    Hey PB what size is your pool? I was running mine for eight hours a day on two four hour cycles, have cut it back to six and have had no noticable change in the pool and am now saving fourteen hours a week in power. It will be interesting to see how this reduction is reflected in the bill. 

    Quoting paulybronco on 08 Jan 2023 01:31 AM

    Its a biggie.....92000litr plus.....when we reduce the summer time running the chemical bill increases due to the sun chewing the chlorine. Winter the hrs get cut back to 8.5/9.5 

    My parents had a pool twice that big. It used to be my job to maintain it when I lived at home. Running costs were not exorbitant.
    The pump was operated with a thermostat and a timer, with manual override, and cycled water onto the roof, circulated through black poly tubing. A pool blanket was rolled out to cover the pool to reduce chemical loss and heat loss overnight and in the off season. Any windblown leaves were removed from the top of the cover when it was rolled up.
  • paulybronco
    paulybronco
    1 year ago
    Quoting obisteve on 05 Jan 2023 01:32 PM

    PB, swap to a DC pump motor fed by its own solar array, run through a maximum power point tracker. Then it will start running automatically  around 7am and turn off maybe 6pm this time of year. It won't give you 20 hours of pumping, but it won't add to your power bill either. Any solar pumping mob will be able to talk to you about it. If 11 hours of filtration isn't enough, tell the kids or guests to stop pissing in the pool.

    Did the exercise yesterday. Two factors came up, but the more difficult to overcome was the fact that the pump flow rate would fluctuate during the course of the day even with a power point tracking device fitted. The chlorinator relies on a certain volume of water circulated over the cell to do its magic .....slow feed = low chlorination. So a battery backup was discussed to allow a more consistent pumping rate. This raises the second issue...$$$$$$.  Sometimes the idea of what your trying to achieve should be considered by the cost.  
    I do like the idea of it all though. 
  • blueystar
    blueystar
    1 year ago
    keeping the inverter cool on hot sunny days they perform better
    desktop fans help with a timer each fan only draws 2.5w on at 9am off 4pm
  • obisteve
    obisteve
    1 year ago
    OK, hadn't thought of that effect on an auto chlorinator. My remote living mate that set his pool up like that didn't use one.
    And yeah, you don't want to buy separate batteries for a pool set up.
  • Humbug
    Humbug
    1 year ago
    I have no chance of keeping mine cool as they are located under each solar panel.
  • obisteve
    obisteve
    1 year ago
    Micro inverters on each panel?
    You're less likely to have panel fire then.
  • paulybronco
    paulybronco
    1 year ago
    Tesla Powerwall
    $303 /month~
    for 60 months when you pay with Plenti finance. $0 deposit. Interest free. Gee that's a very reasonable $18180.....LOL
  • Humbug
    Humbug
    1 year ago
    Quoting obisteve on 12 Jan 2023 05:35 AM

    Micro inverters on each panel?

    You're less likely to have panel fire then.

    Yes one for each panel work well when one fails you only lose that panel. On the down side reports of them not liking the tropical heat up here. Installers are now steering clear of them.
  • obisteve
    obisteve
    1 year ago
    Quoting paulybronco on 13 Jan 2023 03:20 AMedited: 13 Jan 2023 03:25 AM

    Tesla Powerwall

    $303 /month~
    for 60 months when you pay with Plenti finance. $0 deposit. Interest free. Gee that's a very reasonable $18180.....LOL

    I had 13 grands worth of lead acids set up at Obi, 2017 prices.
    Going off grid without casting a very critical eye over all aspects of your energy consumption and making hard decisions about what's really necessary, what alternatives are, is a very expensive business. Grid supplied power is really pretty cheap. At Obi I reckoned we had all the power we needed, but not enough to waste any of it.
  • evo94
    evo94
    1 year ago
    Quoting paulybronco on 13 Jan 2023 03:20 AMedited: 13 Jan 2023 03:25 AM

    Tesla Powerwall

    $303 /month~
    for 60 months when you pay with Plenti finance. $0 deposit. Interest free. Gee that's a very reasonable $18180.....LOL

    Quoting obisteve on 13 Jan 2023 11:51 AM

    I had 13 grands worth of lead acids set up at Obi, 2017 prices.

    Going off grid without casting a very critical eye over all aspects of your energy consumption and making hard decisions about what's really necessary, what alternatives are, is a very expensive business. Grid supplied power is really pretty cheap. At Obi I reckoned we had all the power we needed, but not enough to waste any of it.

    may i ask how long the lead acids last ?
  • obisteve
    obisteve
    1 year ago
    Depends how hard you flog them, how hard you charge them and how well you maintain them.
    The lower your daily depth of discharge, the longer they last. If you keep your daily depth of discharge to less than 15% of the battery's rated capacity (at the C100 rate, that is the capacity rating for discharging it over 100 hours) you are well on the way to getting 10 to 15 years out of them.
    Battery makers have performance graphs for their products that show the life over a range of daily depth of discharge.
    You also extend their life by not charging them at more than 10% of their C100 Ah rating.
    Check the acid levels weekly, and the specific gravity monthly.
    I got 8 years from my first set, disappointing, but I had too big a battery charger hooked to the generator. It was supposed to be smart enough to cope, but wasn't. The too high charge rate from occasional generator use punched the + terminals up through the casings on 3 of the 12 batteries.
    Replaced those first 1050 Ahr batteries with 1320 Ahr ones that better matched the chargers output. They were still going well at 4 years when we sold. I was living there alone for 18 months preparing it for sale, didn't need to run the generator in that time.
  • evo94
    evo94
    1 year ago
    how much to replace the battery bank 4 years ago?? - if you dont mind me asking
  • obisteve
    obisteve
    1 year ago
    Not at all mate. $13000 for 12 x 1320 Ahrs. Had them set up in series to give a 24V dc feed in to  the 2.5 kW inverter. 
    Dunno what prices have done since, sold it 2 years ago, so new batteries were in 2017? Running on memory here, left all documentation with the new owners.
    Going off grid with a typical large all electric modern house costs an arm and a leg, gotta be rich.
    Have to start with the house design, is it thermally efficient for you local microclimate? Do you really need one that big? Do you really need a media room? Gotta be able to get your head around that you might need to wear warm clothes inside occasionally, that some days it will be too hot inside and you gotta go sit in the shade of a tree and drink beer.
    I'm a bit of a Luddite, been happy living on a creek bank in a swag, cooking in a camp oven. Been happy at the next step up, in a shack with a kerosene fridge, wood stove for cooking and hot water,  hurricane lamps and running a generator twice a week to power a twin tub to wash nappies. 
    Sorry for the rant, back to batteries. Running lead acids compared to Lithium is a bit like going on a trip on a chain drive Shovelhead compared to a M8.
    If you know what your doing you'll still get there, but you'll have to spend a bit more time and effort on inspection and maintenance.
    And I've seen there's a Shovel FXR for sale currently in BikeSales. That would be nice, but it's overpriced. I've currently feeling the pinch of keeping the Sporty and 2 Vic's regoed, insured and in tyres, so nah, not this little black duck.
  • evo94
    evo94
    1 year ago
    duhh sorry, i should learn to read previous posts before asking ppl to repeat themselves - you had already made mention of replacement costs in an earlier post....anyways tnx for the interesting read...we have lived (& still do somewhat) as you have described - our life in the Kimberley through the 90's / early 2000's in a simple shedhouse with massive shutters and verandas helped...no power in the sticks at the time, so i put together a small solar system with modified square wave inverter them days, batteries i was lucky enough to be supplied from a large local telecom company that replaced their backup batteries often - all for a few cartons......a back up 7.5kva Generator that always broke down when i was at work & missus had to wash said nappies - fix the fkg thing in the dark when i got home....a homemade "donkey" hotwater system for showers, then eventually "stepup" as you say, to used solar hotwater system that plumbers used to chuck out at work - id accumulate & eventually have one good one together - Edwards brand were good simple stainless tank & panels the best bet at the time...hard living sometimes but some of our best memories
  • paulybronco
    paulybronco
    1 year ago
    So now Qld are set to ban the solar panels and batteries from tips in the next 5yrs...they have seen a huge increase in damage/outdated equipment being thrown out. This comes on the back of the push for us to all go green and install panels etc in readiness for going totally green. Next month NSW close the Liddell power station, that produces 10% of NSW power and then followed by the Eraring plant 2yrs later that produces 25% of NSW power...so in 2yrs one third (35%) of electricity capacity in NSW gone....going to have to rely on candles, but then the smoke is a pollutant!
    Australia have gone nuts
  • Humbug
    Humbug
    1 year ago
    Knew this would happen eventually, when I move the new place it will not have any solar. The new owners of my old place can have the nightmare cost of disposing of them.
    Also what are we going to do with the electric car batteries that fail? let alone the ones are fucked in car accidents like when your silent car traveling at 130kph (NT) hits a buffalow,cow,horse or donkey who never heard the fucking thing coming so could not get out of the way, another poor innocent creature killed by the greenies.
9/11