DST

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JRHill
Forum Emperor
Posts: 2513
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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DST

Post by JRHill »

I can hardly wait until the time change stuff is settled and retired. But one thing is for sure in our house as the spring time change is the obvious mark in the year that the generator will get its last oil change for the season and be prepped for inattention - thankfully. Even on overcast days we get enough solar to carry us through and having 'gotten the lead out' we don't need a genset run just to complete a full absorb at almost no output. Darn I hated to do that.

Anyway, happy springtime to y'all.
raysun
Forum Emperor
Posts: 9546
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: DST

Post by raysun »

Happy Spring!
SumPowerRays
Forum Member
Posts: 13
Joined: Tue Oct 11, 2022 7:48 pm
My RE system: Off Grid (1) Flexpower Radian 8048A-300AFCI:
GS8048A-01 Inverter/Charger 8.0 kW, 48 VDC FLEXpower Radian AFCI, pre- wired GSLC with 120/240 VAC Bypass, 175 Amp DC breakers, 125 Amp charge controller breakers, 80 Amp PV breaker, MATE3s, HUB 10.3, FN-DC, RTS, plus two FLEXmax 100 AFCI charge control.
(12) Northstar Blue 190FT batteries 606 AH @ 20 hour rate, 26.4 kw total
(24) REC 365NP2 Panels. (4) Arrays of 2190 watts each.
(2) MNPV6-250 Combiners
(2) MNSPD-300-DC Midnite surge suppressor.
Location: Washington State

Re: DST

Post by SumPowerRays »

Just put my generator away until winter!!!!
With the day length now, I'm wondering what I am going to do with all the extra solar? Even with partly cloudy days this last week, I have been getting CPM early than I expected each day.
raysun
Forum Emperor
Posts: 9546
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: DST

Post by raysun »

SumPowerRays wrote: Mon Mar 13, 2023 6:25 pm Just put my generator away until winter!!!!
With the day length now, I'm wondering what I am going to do with all the extra solar? Even with partly cloudy days this last week, I have been getting CPM early than I expected each day.
I'm curious about how fast those thin-plate AGMs charge. I imagine they rival LFP, if not exceed it.
All the photons going to waste? You can set up a free charging station for homeless Tesla owners.
SumPowerRays
Forum Member
Posts: 13
Joined: Tue Oct 11, 2022 7:48 pm
My RE system: Off Grid (1) Flexpower Radian 8048A-300AFCI:
GS8048A-01 Inverter/Charger 8.0 kW, 48 VDC FLEXpower Radian AFCI, pre- wired GSLC with 120/240 VAC Bypass, 175 Amp DC breakers, 125 Amp charge controller breakers, 80 Amp PV breaker, MATE3s, HUB 10.3, FN-DC, RTS, plus two FLEXmax 100 AFCI charge control.
(12) Northstar Blue 190FT batteries 606 AH @ 20 hour rate, 26.4 kw total
(24) REC 365NP2 Panels. (4) Arrays of 2190 watts each.
(2) MNPV6-250 Combiners
(2) MNSPD-300-DC Midnite surge suppressor.
Location: Washington State

Re: DST

Post by SumPowerRays »

raysun wrote: Mon Mar 13, 2023 6:44 pm
SumPowerRays wrote: Mon Mar 13, 2023 6:25 pm Just put my generator away until winter!!!!
With the day length now, I'm wondering what I am going to do with all the extra solar? Even with partly cloudy days this last week, I have been getting CPM early than I expected each day.
I'm curious about how fast those thin-plate AGMs charge. I imagine they rival LFP, if not exceed it.
All the photons going to waste? You can set up a free charging station for homeless Tesla owners.

Minimum recommended charge rate for the Northstar batteries @ 48 Vdc is approx 36 Adc per bank, with no maximum limit.
The calculated minimum array wattage to achieve this Amperage (36Adc * 3 banks) for my system is approx. 5400 watts of panels.
In theory they can take all the charge you give them and with monitoring the solar harvest they take everthing my panels put out, even when there are no loads on the system.

At sunrise the bank starts to charge gradually for about 45 minutes, then the bulk charge is complete in 2 to 2.5 hours. CPM is now consistantly being met every morning. Even with the partly cloudy weather.

Pretty happy with the real world results, so far. In my experience battery longevity is somewhat unpredictable as to when they fail.

I spent number of years mantaining Industrial batteries, Forklift batteries used to run heavy mobile equipment. I didn't want my wife having to do battery maintenance if something happened to me, so that played into part of the decision process of choosing these.
raysun
Forum Emperor
Posts: 9546
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: DST

Post by raysun »

My original battery consisted of Outback 200NC AGMs. They were faithfully charged fully on a daily basis (even though they touted some tolerance to PSoC operation.) Unfortunately, two of the blocs had failed cells at the end of year four, so I replaced the battery with LFE.
I trust the Northstar Blues have benefitted from the "1st generation" learnings of the NC series.
SumPowerRays
Forum Member
Posts: 13
Joined: Tue Oct 11, 2022 7:48 pm
My RE system: Off Grid (1) Flexpower Radian 8048A-300AFCI:
GS8048A-01 Inverter/Charger 8.0 kW, 48 VDC FLEXpower Radian AFCI, pre- wired GSLC with 120/240 VAC Bypass, 175 Amp DC breakers, 125 Amp charge controller breakers, 80 Amp PV breaker, MATE3s, HUB 10.3, FN-DC, RTS, plus two FLEXmax 100 AFCI charge control.
(12) Northstar Blue 190FT batteries 606 AH @ 20 hour rate, 26.4 kw total
(24) REC 365NP2 Panels. (4) Arrays of 2190 watts each.
(2) MNPV6-250 Combiners
(2) MNSPD-300-DC Midnite surge suppressor.
Location: Washington State

Re: DST

Post by SumPowerRays »

raysun wrote: Tue Mar 14, 2023 11:46 am My original battery consisted of Outback 200NC AGMs. They were faithfully charged fully on a daily basis (even though they touted some tolerance to PSoC operation.) Unfortunately, two of the blocs had failed cells at the end of year four, so I replaced the battery with LFE.
I trust the Northstar Blues have benefitted from the "1st generation" learnings of the NC series.

I would certainly hope this is the case, and I believe it is. They are commercial Telecom batteries.
The Northstar's have an extra year of warranty over the NC Series, so maybe they will last that extra year! LOL :grin:
raysun
Forum Emperor
Posts: 9546
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: DST

Post by raysun »

SumPowerRays wrote: Tue Mar 14, 2023 5:41 pm
raysun wrote: Tue Mar 14, 2023 11:46 am My original battery consisted of Outback 200NC AGMs. They were faithfully charged fully on a daily basis (even though they touted some tolerance to PSoC operation.) Unfortunately, two of the blocs had failed cells at the end of year four, so I replaced the battery with LFE.
I trust the Northstar Blues have benefitted from the "1st generation" learnings of the NC series.

I would certainly hope this is the case, and I believe it is. They are commercial Telecom batteries.
The Northstar's have an extra year of warranty over the NC Series, so maybe they will last that extra year! LOL :grin:
Keep us apprised! Inquiring minds want yo know. 😀
SumPowerRays
Forum Member
Posts: 13
Joined: Tue Oct 11, 2022 7:48 pm
My RE system: Off Grid (1) Flexpower Radian 8048A-300AFCI:
GS8048A-01 Inverter/Charger 8.0 kW, 48 VDC FLEXpower Radian AFCI, pre- wired GSLC with 120/240 VAC Bypass, 175 Amp DC breakers, 125 Amp charge controller breakers, 80 Amp PV breaker, MATE3s, HUB 10.3, FN-DC, RTS, plus two FLEXmax 100 AFCI charge control.
(12) Northstar Blue 190FT batteries 606 AH @ 20 hour rate, 26.4 kw total
(24) REC 365NP2 Panels. (4) Arrays of 2190 watts each.
(2) MNPV6-250 Combiners
(2) MNSPD-300-DC Midnite surge suppressor.
Location: Washington State

Re: DST

Post by SumPowerRays »

I had LFP envy, with the charge rates I was seeing with them. But the Northstars are performing very good, close to LFP.

The only downside with the Northstar's is the lower number of charge cycles. But I considered that during my purchase.
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