testing the 3 different packs I currently have
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Not sure what you have drawn in…. Arrows and graphed. Are they both along same line for performance? Looks like voltage has dual lines. Hard to see. Same for blue?
Btw my secondary system means if one crashes then the other might survive. I think point of use power is best approach. Whole home is to much. I am looking run Mini Split heat pump with an additional system. Grid Power use to go out several times here.
I had my older Canadian solar panels laying around …. set them up in temp use…great sunshine… panels are rated
325w each but with both hooked in series get a MPP Solar 3048 display combined ~450watts around ~65vdc. Calculated about combined ~6.92amps. The Himassi 51.2 batteries are charged with blue tooth display of 100% SOC.
Redemption the panels hit 590 watts and pushed 10 amps into batteries just a while ago - towards end of day. 7 Apr
I was cranking a oil - electric radiant heater pulling 1500watts as a load WHEN IT PICKED UP….to 590 watts for the panels. Some of the PV output was being used by heater…..
These are used Santansolar panels….set at recommended and tested best angles according to pv website program. I’ve also got several other panels. None of them match stated watts. None. Wait …1 Exception …. smallest panel from Ecco worthy rips …it is 25w but doing ~35 watts. For some reason small panels do better.
Also tested with a Victron Smart Solar 150/35 same basic results. The bluetooth on victron is very limited for range. My himassi batteries have 2x bluetooth range.
I used Victron with micro system to play. I use micro system charge truck battery some times and in emergency phone charger with pwm charge controller
Open voltages with no loads - than all panels do ….. great specs …almost spot on. Under load not so much. Real World. Nickel dime You probably see the same.
Also changed all MC4 ends to bouge rv. Warning bouge rv mc4 plug ends in 1 of my kits do not fit bouge rv 10ga cable without whittling out the hole on compression cap so wire can fit inside of it. Bouge rv 10 ga pv cable claims to be all copper but when cutting it looks aluminum coated or tinned. Weird. Center of wire looks copper. Just by looks say it is copper….. . BTW… The mc4 ends for my Canadian solar 330watt panels WERE considerably different from Bouge RV mc4 ends. So….. read it is best to always match the mc4 connector ends. THEY MATCH NOW. Nickel Dime. Btw mc4 were rated 30amp.
Ever notice ppl claiming to be totally off grid also have - recommend ice - gas - diesel generators ……
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Solar is not sustainable as stand alone. Unless you want to go nuts with OVER panel Over battery then WE are still at mercy of sun.
I found local guy ~100 miles away …selling NEW Q-Cell 580watt bifacial panels for $145 -$150 each. They are huge…. Heavy awkward too. 4 of them would be nice…addition. Like all hobbies has to be checked. Think have enough solar… snicker… can never get enough.
I think 2320watts tracking the sun with movement would about equal ~2x fixed ground mount array. That is “If” it mostly hits optimal wattage …. Less ground space used up too.
I think am just going with direct power at point of use vs using my 240v split phase transfer switch. All need is 120v for emergency. I never plan to run constant power just emergency. The present inverter does a ups pass through…I wired 120v 30amp rv input cable for it. Can plug it up to shore or gas generator with that plug. So could tie loads to it to run all the time. It would be automatic - ups in power outages.
The problem is these cheap AIO inverters like we have are not known to last.
Example:
Hiya totally gutted,i managed to smoke my vevor mppt 3kv hoping someone can recognise symptoms or suggest a repairer ( Uk ) I don,t have a guarantee as i bought second hand and support for repairs of vevor products in Uk seem to be non-existant this is a total garage project with never any...
diysolarforum.com
When pushed they give up the ghost. The light weight is a tell.
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Best to figure them as 2x over rated for specs. I think Victron can take the heat but took chance and think will be fine if I never go much over half rating ….
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Hind sight is always 20/20. Right? Victron was 3x price. Hmmmm….
Cloud seeders were out again on 7 April they were doing crosses everywhere. Rain cold today It was nice sunshine on 7 April blue sky. Great solar. Now it is nasty cold raining 26w output from 650w fixed array.
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Not sure how much weight this cabinet can take. They say 100pounds shelf but I highly doubt that. Not enough structure.