Weather goest thou

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raysun
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Posts: 10766
Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower Two: (2) FXR3048A-01 - Series Stacked, (2) FM80, MATE3s, FlexNetDC
6 SimpliPhi 3.8-48 (48v @ 75AH. 450AH total)
Outback IBR3 battery enclosure
REC Alpha 440W panels - 2 arrays: each of 4 strings of 2 in series
2 Midnite Solar MNPV6 combiners w/20A DC disconnects.
Honda EU7000is gas fuel generator
Off-Grid

Weather goest thou

Post by raysun »

20240110_163220.jpg
Got my DW what she wanted for Christmas. Good thing I waited for today to set it up. Yesterday's 6" of rain probably would have washed it off the roof.
I like the solar radiation monitor section.
raysun
Forum Overlord
Posts: 10766
Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower Two: (2) FXR3048A-01 - Series Stacked, (2) FM80, MATE3s, FlexNetDC
6 SimpliPhi 3.8-48 (48v @ 75AH. 450AH total)
Outback IBR3 battery enclosure
REC Alpha 440W panels - 2 arrays: each of 4 strings of 2 in series
2 Midnite Solar MNPV6 combiners w/20A DC disconnects.
Honda EU7000is gas fuel generator
Off-Grid

Re: Weather goest thou

Post by raysun »

Screenshot_20240111_073105_Chrome.jpg
Screenshot_20240111_073126_Chrome.jpg
One thing I've always been curious about is how much solar radiation is required to "turn on" PV charging. The STC measurement of 1000W/m² informs us of the maxima, but scant data is published on the minima. Looking at our new toy, I notice the FM80s start delivering juice around 25W/m². (The readings are not calibrated, so I assume +/-10%)
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Mike Curran
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Posts: 3235
Joined: Sat Aug 28, 2004 6:28 pm
My RE system: Outback - Garage roof (2007/2017):
- 8 (2x4) Evergreen 180's into one FM80 (2007/2020 - replaced MX60)
- 6 (2×3) ALEO S79-300's into one FM80 (2017)
- 2 grid-tied VFXR3524A-01's series stacked, replaced GVFX's (2020)
- 12 Surrette/Rolls 2V x 1766Ah (2007)
- Hub10.3, Mate3s, FNDC, RTS. Tigo ES maximizers on each PV module.

Westinghouse Solar - Barn roof: (2012)
- 24 (2x12) 235W Lightways panels with Enphase M215 microinverters plus 6 - 275W Talesun panels, also with M215s, grid-tied

Outback Skybox - Barn roof: (2019)
- 14 Trina Solar 270W in series (DC array input to SB inverter/charger), currently awaiting installation (2/19/24)
- 3 SimpliPhi 3.8 batteries, 48V, 225Ah total
- AC coupled input from 14 Talesun 275W (manually switched during outages), Enphase M215 microinverters

Battery systems operate in grid-tied, net metering w/backup mode
All self-designed and self-installed
Location: Chagrin Falls, Ohio

Re: Weather goest thou

Post by Mike Curran »

The screenshot on your first post shows 2 temperatures, one at 72, the other 79. Whither is which?
https://ei.tigoenergy.com/p/pZXn7SZQyO45
https://enlighten.enphaseenergy.com/public/systems/Hctc107221
As of 8/25/23 Westinghouse array down to 21 panels, Skybox DC array out of commission.
raysun
Forum Overlord
Posts: 10766
Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower Two: (2) FXR3048A-01 - Series Stacked, (2) FM80, MATE3s, FlexNetDC
6 SimpliPhi 3.8-48 (48v @ 75AH. 450AH total)
Outback IBR3 battery enclosure
REC Alpha 440W panels - 2 arrays: each of 4 strings of 2 in series
2 Midnite Solar MNPV6 combiners w/20A DC disconnects.
Honda EU7000is gas fuel generator
Off-Grid

Re: Weather goest thou

Post by raysun »

Mike Curran wrote: Thu Jan 11, 2024 11:53 am The screenshot on your first post shows 2 temperatures, one at 72, the other 79. Whither is which?
The temp on the left is outdoor. The right is indoor using a remote temp/humidity sensor.

I've ordered a couple more remote sensors, and hope to use them under the solar panels, and in our potting shed.
raysun
Forum Overlord
Posts: 10766
Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower Two: (2) FXR3048A-01 - Series Stacked, (2) FM80, MATE3s, FlexNetDC
6 SimpliPhi 3.8-48 (48v @ 75AH. 450AH total)
Outback IBR3 battery enclosure
REC Alpha 440W panels - 2 arrays: each of 4 strings of 2 in series
2 Midnite Solar MNPV6 combiners w/20A DC disconnects.
Honda EU7000is gas fuel generator
Off-Grid

Re: Weather goest thou

Post by raysun »

Fun with numbers.
It's a clear, sunny morning @ 61°F
Solar array producing 3480W
Solar radiation 470W/m²
Panel surface area 33.6m²

Panel efficiency: 22%.

Not bad.
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Mike Curran
Forum Emperor
Posts: 3235
Joined: Sat Aug 28, 2004 6:28 pm
My RE system: Outback - Garage roof (2007/2017):
- 8 (2x4) Evergreen 180's into one FM80 (2007/2020 - replaced MX60)
- 6 (2×3) ALEO S79-300's into one FM80 (2017)
- 2 grid-tied VFXR3524A-01's series stacked, replaced GVFX's (2020)
- 12 Surrette/Rolls 2V x 1766Ah (2007)
- Hub10.3, Mate3s, FNDC, RTS. Tigo ES maximizers on each PV module.

Westinghouse Solar - Barn roof: (2012)
- 24 (2x12) 235W Lightways panels with Enphase M215 microinverters plus 6 - 275W Talesun panels, also with M215s, grid-tied

Outback Skybox - Barn roof: (2019)
- 14 Trina Solar 270W in series (DC array input to SB inverter/charger), currently awaiting installation (2/19/24)
- 3 SimpliPhi 3.8 batteries, 48V, 225Ah total
- AC coupled input from 14 Talesun 275W (manually switched during outages), Enphase M215 microinverters

Battery systems operate in grid-tied, net metering w/backup mode
All self-designed and self-installed
Location: Chagrin Falls, Ohio

Re: Weather goest thou

Post by Mike Curran »

That's 22.03647416% efficient.
https://ei.tigoenergy.com/p/pZXn7SZQyO45
https://enlighten.enphaseenergy.com/public/systems/Hctc107221
As of 8/25/23 Westinghouse array down to 21 panels, Skybox DC array out of commission.
raysun
Forum Overlord
Posts: 10766
Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower Two: (2) FXR3048A-01 - Series Stacked, (2) FM80, MATE3s, FlexNetDC
6 SimpliPhi 3.8-48 (48v @ 75AH. 450AH total)
Outback IBR3 battery enclosure
REC Alpha 440W panels - 2 arrays: each of 4 strings of 2 in series
2 Midnite Solar MNPV6 combiners w/20A DC disconnects.
Honda EU7000is gas fuel generator
Off-Grid

Re: Weather goest thou

Post by raysun »

Mike Curran wrote: Fri Jan 12, 2024 1:33 pm That's 22.03647416% efficient.
🤣

My chemistry professor would come back with "Show your results within the measurement errors."
JRHill
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Joined: Thu Feb 17, 2011 11:12 am
My RE system: 48v OB inverter and charge controller, hub and mate3s.
Location: PNW
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Re: Weather goest thou

Post by JRHill »

When we added the solar radiation and UV sensors several years back we had an unexpected surprise. Those sensors along with temperature, humidity, etc. are fed into an algorithm that calculates 'evaporation transpiration' of what is lost from the ground. Accuracy is suspect but it is quite interesting in the summer. With day by day to week after week of no rain for 3+ months it's quite revealing why there is so much stress and die off of the ponderosa pines and to a lesser degree, the douglas fir. The Oregon oak isn't really affected except to maybe reabsorb moisture from the young acorns much to the disappointment of lots of wildlife.

Congratulations to the wife. And I bet you will get more into it to create a new hobby. Can you save the data for year by year comparison and reports? I wish that weather data import could be integrated into OpticsRE but that sure won't happen.
santafedave
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Posts: 143
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My RE system: GS8048-A-300AFCI 8 KW 48V Mate3s with 2 FM100 charge controllers pre wired.
21 Canadian Solar 320 Watt PERC MC4 CS3K-320MS panels.
3 Canadian Solar 325W Module Mono Perc 1000VDC panels.
Fortress eVault Max 18.5 kWh battery
8 FullRiver AGM DC400-6 Sealed Batteries 415AH 6V L16 size Replaced.
Fireraptor quick disconnect.

Re: Weather goest thou

Post by santafedave »

You all should check out this website:

https://ag-wx.com/national_report.html

The gentleman who puts this together works for Nutrian Ag Solutions and he is their weather speculator. When you type in your city you will get a numerical code that corresponds with the population of the city you live in based on Census data. LA is number 1 and my little village is 4653. Great resource if you like to grow your own food shows all the important stuff like solar radiation, ground evaporation and moisture depth at 4 inches etc...
The Electron
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Posts: 288
Joined: Thu Dec 14, 2006 3:08 pm
My RE system: I troubleshoot & maintain off-grid systems in many different scenarios, a few are total redneck messes I stumble across, some are pretty nice. Experience with multiple stacked FX's and Radians & Optics
Location: Northwest Montana

Re: Weather goest thou

Post by The Electron »

Raysun, do you like this weather gizmo? I would love to find one with several remotes possible, but with (option to) slow the roll on the remotes transmitting to the base (wouldn't every 120 seconds be enuff for 97.094735201% of us??) -- :lol: All kidding aside, if you likey, might get one:)
raysun
Forum Overlord
Posts: 10766
Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower Two: (2) FXR3048A-01 - Series Stacked, (2) FM80, MATE3s, FlexNetDC
6 SimpliPhi 3.8-48 (48v @ 75AH. 450AH total)
Outback IBR3 battery enclosure
REC Alpha 440W panels - 2 arrays: each of 4 strings of 2 in series
2 Midnite Solar MNPV6 combiners w/20A DC disconnects.
Honda EU7000is gas fuel generator
Off-Grid

Re: Weather goest thou

Post by raysun »

The Electron wrote: Mon Feb 05, 2024 11:50 am Raysun, do you like this weather gizmo? I would love to find one with several remotes possible, but with (option to) slow the roll on the remotes transmitting to the base (wouldn't every 120 seconds be enuff for 97.094735201% of us??) -- :lol: All kidding aside, if you likey, might get one:)
I got it because it as inexpensive. The wife wanted something to replace her broken plastic rain gauge. It works for me. I can't vouch for precision. The wife's happy, so I'm happy.
The Electron
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Posts: 288
Joined: Thu Dec 14, 2006 3:08 pm
My RE system: I troubleshoot & maintain off-grid systems in many different scenarios, a few are total redneck messes I stumble across, some are pretty nice. Experience with multiple stacked FX's and Radians & Optics
Location: Northwest Montana

Re: Weather goest thou

Post by The Electron »

But does your happy bias differ by more than a factor of .o90210? Gotta watch out for that! :cool:

I really do wish there were remotes that transmitted less often for these weather gizmos, many have dip switches, one could be added to switch between 2x a min to every 2 mins for example. But yes of course, data importation into our geeked out lives has never been easier. Thanks for your cutting edge review! :lol:
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sodamo
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Joined: Mon Apr 03, 2006 1:55 am
My RE system: Totally off grid - Hamakua side, Big Island, Hi

36 Trina 280 & 16 Phono 250 in 48 volt array (fixed) 14080w
Adding 12 Hyundai 365 (4380) 18460w total
Radians GG8048A/GS4048A w GSLCs
4 FM 80 charge controllers
Hub 10.3
FNDC w/3 shunts
Mate 3s
OpticsRE - MMKL - Ninole Hi
15 SimpliPhi 3.8 (57kw) (1125 AH)
14Kw Kohler 14RESA Propane

Charging Only
2FX3048T
Hub
FNDC. - shared shunt feeds from Radian FNDC
Mate 3s
10Kw MEP 803a Military gen

Honda EU7000i

Davis VantagePro2 Wx Station
On line at: https://www.wunderground.com/dashboard/pws/KHININOL2
Location: Ninole, Hi

Re: Weather goest thou

Post by sodamo »

JRHill wrote: Sat Jan 13, 2024 11:11 am When we added the solar radiation and UV sensors several years back we had an unexpected surprise. Those sensors along with temperature, humidity, etc. are fed into an algorithm that calculates 'evaporation transpiration' of what is lost from the ground. Accuracy is suspect but it is quite interesting in the summer. With day by day to week after week of no rain for 3+ months it's quite revealing why there is so much stress and die off of the ponderosa pines and to a lesser degree, the douglas fir. The Oregon oak isn't really affected except to maybe reabsorb moisture from the young acorns much to the disappointment of lots of wildlife.

Congratulations to the wife. And I bet you will get more into it to create a new hobby. Can you save the data for year by year comparison and reports? I wish that weather data import could be integrated into OpticsRE but that sure won't happen.
Yup, years ago, I asked David Lebow about importing my own wx readings instead of the non relevant info they use. Nope
Maybe I should have asked again for 5.0.
David
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