I can understand your interest in that. Helpful when the inspectors are around the neighborhood.Nice! And mobile too!
I can understand your interest in that. Helpful when the inspectors are around the neighborhood.Nice! And mobile too!
Or for ease of transport to my remote woodlands superhero lair.I can understand your interest in that. Helpful when the inspectors are around the neighborhood.
I changed the tilt on all my panels from January 51
I changed from the January 51 degree tilt to the February tilt of 43 degrees based on https://www.shaktipumps.com/solar-calculator.php
Welcome to the forum.Hi from sunny Queensland Australia...
Offgrid again (first time back in the 1980's- things sure have changed since then lol)
Currently running a 'temporary' setup with two arrays of three series 250W ex gridties totaling 1.5kw (picked up 18kw worth of panels (72) for under two grand lol) but they are sitting in the shed until I finish building the house to put them on... until then, my little 'temporary' setup runs the shed and caravan...
View attachment 192894
Three in series facing north at the right angle for summer/winter collection, 3 facing west at 45 degrees for the afternoon sun... Together they put about 7.5-8kwh a day into the battery bank, sufficient to run the caravan and shed... Strapped down to two full IBC's- they aren't going anywhere with 2 tonnes of water ballast lol
View attachment 192895
The fourth panel (right at the top) runs a UV sterilizer and 'stirrer' pump in the rain water tank behind it- they only need a 20w panel- but buying one was going to cost more than I paid for the 250w ones lol- and I got plenty sitting in the shed idle atm...
View attachment 192896
Feeds 16x 400Ah (20kwh) of LYP cells- currently 4S4P to run at 12v feeding an old 8kw 12v inverter I've had for nearly a decade now (LYP are LiFeYPO4, similar to LFP, but far more tolerant of temperature extremes (we get upwards of 40C plus for weeks on end in summer here- over 100F) and with the LYP capable of charging from -45C to 85C (-50F to 185F), and LFP needing to start reducing their charge rate above 40C- the LYPs made better sense even though they are slightly more expensive than LFP...
During setup at the shed
View attachment 192897
Feeds the battered old 8kw 12v inverter (years of being mounted in the back of the ute has given it a bit of a battered look, but still works as good as the day I bought it back in 2014...)- there's a 48v 12kw hybrid inverter also sitting in the shed for once the house is finished...
View attachment 192898
View attachment 192899
Heavy sucker- took three of us to get it into the cab- used the winch on the tilttray to unload it- it weighs in at 72kg (160lbs)- wasn't going to drop a brand new inverter!!!
I know that 8kw on a 12v system isn't ideal- but stayed at the 12v because all the caravans electrics are 12v (lights, TV, water pumps for the sink and bathroom- the house will be 48v with the battery bank reconfigured as a 16s instead...) and it is only 'temporary' (mind you, it will probably be 'temporary' for another couple of years before I finish the house lol- took me a year to build the shed...
May I ask how much each of the 400Ah Winston cells cost you?Hi from sunny Queensland Australia...
Offgrid again (first time back in the 1980's- things sure have changed since then lol)
Currently running a 'temporary' setup with two arrays of three series 250W ex gridties totaling 1.5kw (picked up 18kw worth of panels (72) for under two grand lol) but they are sitting in the shed until I finish building the house to put them on... until then, my little 'temporary' setup runs the shed and caravan...
View attachment 192894
Three in series facing north at the right angle for summer/winter collection, 3 facing west at 45 degrees for the afternoon sun... Together they put about 7.5-8kwh a day into the battery bank, sufficient to run the caravan and shed... Strapped down to two full IBC's- they aren't going anywhere with 2 tonnes of water ballast lol
View attachment 192895
The fourth panel (right at the top) runs a UV sterilizer and 'stirrer' pump in the rain water tank behind it- they only need a 20w panel- but buying one was going to cost more than I paid for the 250w ones lol- and I got plenty sitting in the shed idle atm...
View attachment 192896
Feeds 16x 400Ah (20kwh) of LYP cells- currently 4S4P to run at 12v feeding an old 8kw 12v inverter I've had for nearly a decade now (LYP are LiFeYPO4, similar to LFP, but far more tolerant of temperature extremes (we get upwards of 40C plus for weeks on end in summer here- over 100F) and with the LYP capable of charging from -45C to 85C (-50F to 185F), and LFP needing to start reducing their charge rate above 40C- the LYPs made better sense even though they are slightly more expensive than LFP...
During setup at the shed
View attachment 192897
Feeds the battered old 8kw 12v inverter (years of being mounted in the back of the ute has given it a bit of a battered look, but still works as good as the day I bought it back in 2014...)- there's a 48v 12kw hybrid inverter also sitting in the shed for once the house is finished...
View attachment 192898
View attachment 192899
Heavy sucker- took three of us to get it into the cab- used the winch on the tilttray to unload it- it weighs in at 72kg (160lbs)- wasn't going to drop a brand new inverter!!!
I know that 8kw on a 12v system isn't ideal- but stayed at the 12v because all the caravans electrics are 12v (lights, TV, water pumps for the sink and bathroom- the house will be 48v with the battery bank reconfigured as a 16s instead...) and it is only 'temporary' (mind you, it will probably be 'temporary' for another couple of years before I finish the house lol- took me a year to build the shed...
That was during the setup- but still no BMS, no... (I do a check once a month to check they're tracking, (I have the equipment to do a manual balancing if required- been installing offgrid since the 1980's and got my grid tie installers licence back in 2004) but to date- they are still tracking accurately despite over two years of use)Welcome to the forum.
It looks like you're going to have quite the setup, nice.
Did you add a BMS to your battery after taking the photo? I didn't see any in your picture.
I paid $1.95 per AH per cell from the supplier here in Qld- so $780 each including GST (the total bank would have cost me $12480 Au but as I could buy them GST free (as a business) it only cost me $11232 Au delivered to the door)May I ask how much each of the 400Ah Winston cells cost you?
Thanks. How much would an eve 280 or 304 cost in comparison?I paid $1.95 per AH per cell from the supplier here in Qld- so $780 each including GST (the total bank would have cost me $12480 Au but as I could buy them GST free (as a business) it only cost me $11232 Au delivered to the door)
That's crazy. In the US we can get grade A for like $100/cell now plus $10-15/cell shipping.The Eve 280Ah LF280K is $375 per cell here (although I wouldn't use them here as they would be in reduced charging mode for much of the summer due to the heat- thats why I went the LYP instead of the LFP)
By the time its hitting over 40C, and the battery pack is 5C higher than that when charging, you are up to over 45C, and that's well into throttling range for a LFP...
(I'm glad I'm not in Western Oz atm- they were over 50C/125.6F a couple of weeks ago!!!
View attachment 192923
Even for me- thats .....hot...
I'm assuming he was using Australian dollars not US dollars Still pricey since $375 AUD would be $245 USD.That's crazy. In the US we can get grade A for like $100/cell now plus $10-15/cell shipping.
Ah, still bad but not quite THAT bad.I'm assuming he was using Australian dollars not US dollars Still pricey since $375 AUD would be $245 USD.
I had to really zoom in until I saw them, Excellent work.Just finished up on another array for a separate battery bank.
No clue on input, I’m thinking at least 1.21 gigawatts
View attachment 195808
Will it power a DeLorean?Just finished up on another array for a separate battery bank.
No clue on input, I’m thinking at least 1.21 gigawatts
View attachment 195808