Second system extension extension.
Re: Second system extension extension.
Thought i'd post this graph as an example of my system and its growth over the years. Hoping to encourage others! June 18 the original system went live. Even though June 22 is a little better that's not the whole story as there has been string relocation since June 22. I fully expect June 23 to be a 1MWh+ generated on PV alone. Back in 2018 there is no way I could have imagined this or got my head around it.
Sept 20 is the start of the second system install and ongoing growth.
Sept 20 is the start of the second system install and ongoing growth.
19.7kW PV SE, VI, HM, EN & DW
Ripple 7kW WT & Gen to date 19MWh
42kWh LFPO4 storage
95kWh Heater storage
12kWh 210ltr HWT.
73kWh HI5
Deep insulation, air leak ct'd home
Zoned GCH & Hive 2
WBSx2
Low energy bulbs
Veg patches & fruit trees
Ripple 7kW WT & Gen to date 19MWh
42kWh LFPO4 storage
95kWh Heater storage
12kWh 210ltr HWT.
73kWh HI5
Deep insulation, air leak ct'd home
Zoned GCH & Hive 2
WBSx2
Low energy bulbs
Veg patches & fruit trees
Re: Second system extension extension.
As this is the first full Summer for the complete system I've been running it all to the max and keeping it on as much as possible to hopefully achieve a solar only 1MWh month.
Noticed today that the Victron solar controller was a bit toasty (54 deg) so I ran in a 5v usb pack powered small fan and it quickly pulled the controller down to 39 degs.
Popped open a fuse box to check connection tightness and realised the box did not have top ventilation, only bottom.
Got the drill out and added 5 of 10mm holes on the top. Loving the Flir TI picture!
Worth a check of all out systems on these extraordinary days? Such simple improvements for system longevity.
Noticed today that the Victron solar controller was a bit toasty (54 deg) so I ran in a 5v usb pack powered small fan and it quickly pulled the controller down to 39 degs.
Popped open a fuse box to check connection tightness and realised the box did not have top ventilation, only bottom.
Got the drill out and added 5 of 10mm holes on the top. Loving the Flir TI picture!
Worth a check of all out systems on these extraordinary days? Such simple improvements for system longevity.
19.7kW PV SE, VI, HM, EN & DW
Ripple 7kW WT & Gen to date 19MWh
42kWh LFPO4 storage
95kWh Heater storage
12kWh 210ltr HWT.
73kWh HI5
Deep insulation, air leak ct'd home
Zoned GCH & Hive 2
WBSx2
Low energy bulbs
Veg patches & fruit trees
Ripple 7kW WT & Gen to date 19MWh
42kWh LFPO4 storage
95kWh Heater storage
12kWh 210ltr HWT.
73kWh HI5
Deep insulation, air leak ct'd home
Zoned GCH & Hive 2
WBSx2
Low energy bulbs
Veg patches & fruit trees
Re: Second system extension extension.
The challenge you have Joe is that you’re working at the limit of what is sensible with a 48V battery system. Interestingly so-called “High Voltage” battery systems are becoming available using inverters such as: https://www.solaxpower.com/wp-content/u ... asheet.pdf. This one is compatible with pack voltages in the 85-400V range (others go up to 800V) and the associated reduction in current keeps temperatures easier to control.Joeboy wrote: ↑Sat Jun 17, 2023 4:12 pm As this is the first full Summer for the complete system I've been running it all to the max and keeping it on as much as possible to hopefully achieve a solar only 1MWh month.
Noticed today that the Victron solar controller was a bit toasty (54 deg) so I ran in a 5v usb pack powered small fan and it quickly pulled the controller down to 39 degs.
Popped open a fuse box to check connection tightness and realised the box did not have top ventilation, only bottom.
Got the drill out and added 5 of 10mm holes on the top. Loving the Flir TI picture!
Worth a check of all out systems on these extraordinary days? Such simple improvements for system longevity.
[I know that “High Voltage” has a formal definition and this context is misuse of that term. However it seems that I’m in the distinct minority and will have to just go with the flow and consider this one lost…]
Last edited by Stinsy on Sat Jun 17, 2023 7:16 pm, edited 1 time in total.
12x 340W JA Solar panels (4.08kWp)
3x 380W JA Solar panels (1.14kWp)
5x 2.4kWh Pylontech batteries (12kWh)
LuxPower inverter/charger
(Artist formally known as ******, well it should be obvious enough to those for whom such things are important.)
3x 380W JA Solar panels (1.14kWp)
5x 2.4kWh Pylontech batteries (12kWh)
LuxPower inverter/charger
(Artist formally known as ******, well it should be obvious enough to those for whom such things are important.)
Re: Second system extension extension.
There is a reason I am happy with 48V DC, well mine goes up to 56V.
And I've licked my fingers,
EDIT - I am OK with commercial designs with the obvious safeguards but for a DIY system, its up to your own appetite for risk.
And I've licked my fingers,
EDIT - I am OK with commercial designs with the obvious safeguards but for a DIY system, its up to your own appetite for risk.
16.9kW PV > 109MWh generated
Ripple 6.6kW Wind + 4.5kW PV > 25MWh generated
5 Other RE Coop's
105kWh EV storage
60kWh Home battery storage
40kWh Thermal storage
GSHP + A2A HP's
Rain water use > 510 m3
Ripple 6.6kW Wind + 4.5kW PV > 25MWh generated
5 Other RE Coop's
105kWh EV storage
60kWh Home battery storage
40kWh Thermal storage
GSHP + A2A HP's
Rain water use > 510 m3
Re: Second system extension extension.
That’s a coincidence, I was in the loft where my inverter is and sitting next to it was PC tower case with old PC fans, that was my idea, but I had a spare 20watt panel in the shed so thought I would connect that up- the loft has a velux so just sitting the panel in the sun in the loft…
Re: Second system extension extension.
We also had a hive plug which runs the solariboost and is situated in the loft (the plug) thermal trip out today, its getting toasty, that's for sure.
As an anecdote, within 10 minutes of adding the hally racket passive and active cooling the Victron system was outputting 3,250W. The past few weeks it has been hitting 3,100W and deadheading there.
I will keep an eye out if the strong days continue but it looks as if there may have been some thermal throttling by the Victron controller. Only an anecdote but hell of a coincidence.
As an anecdote, within 10 minutes of adding the hally racket passive and active cooling the Victron system was outputting 3,250W. The past few weeks it has been hitting 3,100W and deadheading there.
I will keep an eye out if the strong days continue but it looks as if there may have been some thermal throttling by the Victron controller. Only an anecdote but hell of a coincidence.
19.7kW PV SE, VI, HM, EN & DW
Ripple 7kW WT & Gen to date 19MWh
42kWh LFPO4 storage
95kWh Heater storage
12kWh 210ltr HWT.
73kWh HI5
Deep insulation, air leak ct'd home
Zoned GCH & Hive 2
WBSx2
Low energy bulbs
Veg patches & fruit trees
Ripple 7kW WT & Gen to date 19MWh
42kWh LFPO4 storage
95kWh Heater storage
12kWh 210ltr HWT.
73kWh HI5
Deep insulation, air leak ct'd home
Zoned GCH & Hive 2
WBSx2
Low energy bulbs
Veg patches & fruit trees
Re: Second system extension extension.
Just showing off!
It appears that there is always a possible tweak here or there. Next up I'll open the remaining boxes and check connection tightness. That 12.00 to 15.00 hrs though? Killer!
Last edited by Joeboy on Sat Jun 17, 2023 7:20 pm, edited 1 time in total.
19.7kW PV SE, VI, HM, EN & DW
Ripple 7kW WT & Gen to date 19MWh
42kWh LFPO4 storage
95kWh Heater storage
12kWh 210ltr HWT.
73kWh HI5
Deep insulation, air leak ct'd home
Zoned GCH & Hive 2
WBSx2
Low energy bulbs
Veg patches & fruit trees
Ripple 7kW WT & Gen to date 19MWh
42kWh LFPO4 storage
95kWh Heater storage
12kWh 210ltr HWT.
73kWh HI5
Deep insulation, air leak ct'd home
Zoned GCH & Hive 2
WBSx2
Low energy bulbs
Veg patches & fruit trees
Re: Second system extension extension.
I was attempting to illustrate the dangers of Stinsy's post about high voltage inverters, not your system.
I don't see an 8% increase in efficiency something worth gaining for the dangers it poses to DIY folk.
https://www.solaxpower.com/wp-content/u ... asheet.pdf
16.9kW PV > 109MWh generated
Ripple 6.6kW Wind + 4.5kW PV > 25MWh generated
5 Other RE Coop's
105kWh EV storage
60kWh Home battery storage
40kWh Thermal storage
GSHP + A2A HP's
Rain water use > 510 m3
Ripple 6.6kW Wind + 4.5kW PV > 25MWh generated
5 Other RE Coop's
105kWh EV storage
60kWh Home battery storage
40kWh Thermal storage
GSHP + A2A HP's
Rain water use > 510 m3
Re: Second system extension extension.
Cheers, I'll have a read. The showing off reference has been done with very much tongue in cheek.nowty wrote: ↑Sat Jun 17, 2023 7:19 pmI was attempting to illustrate the dangers of Stinsy's post about high voltage inverters, not your system.
I don't see an 8% increase in efficiency something worth gaining for the dangers it poses to DIY folk.
https://www.solaxpower.com/wp-content/u ... asheet.pdf
I have to keep reminding myself that this is Yr1 of the 'complete' system and its only now seeing first serious stress. So far, so .
19.7kW PV SE, VI, HM, EN & DW
Ripple 7kW WT & Gen to date 19MWh
42kWh LFPO4 storage
95kWh Heater storage
12kWh 210ltr HWT.
73kWh HI5
Deep insulation, air leak ct'd home
Zoned GCH & Hive 2
WBSx2
Low energy bulbs
Veg patches & fruit trees
Ripple 7kW WT & Gen to date 19MWh
42kWh LFPO4 storage
95kWh Heater storage
12kWh 210ltr HWT.
73kWh HI5
Deep insulation, air leak ct'd home
Zoned GCH & Hive 2
WBSx2
Low energy bulbs
Veg patches & fruit trees
Re: Second system extension extension.
The real danger of homebuild systems is accidental shorting. How much current could’ve been drawn had you dropped a spanner across those terminals?nowty wrote: ↑Sat Jun 17, 2023 7:19 pmI was attempting to illustrate the dangers of Stinsy's post about high voltage inverters, not your system.
I don't see an 8% increase in efficiency something worth gaining for the dangers it poses to DIY folk.
https://www.solaxpower.com/wp-content/u ... asheet.pdf
12x 340W JA Solar panels (4.08kWp)
3x 380W JA Solar panels (1.14kWp)
5x 2.4kWh Pylontech batteries (12kWh)
LuxPower inverter/charger
(Artist formally known as ******, well it should be obvious enough to those for whom such things are important.)
3x 380W JA Solar panels (1.14kWp)
5x 2.4kWh Pylontech batteries (12kWh)
LuxPower inverter/charger
(Artist formally known as ******, well it should be obvious enough to those for whom such things are important.)