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My shed's roof is white I was excited to add panels to the roof of the shed to see further cooling from the shading. I covered the roof with 6 bifacial panels with only a little bit of roof left exposed. Next day I noticed inverter temperature was higher than normal. What the hey? So I...

https://www.reddit.com/r/solar/s/90qbW3a8W6

about a year ago when I joined, it was the Schneider xw pro that was popular for low frequency, and the growatts and voltronics were popular for high frequency off grid. Now I hear almost no mention of them. That's how quickly the landscape is changing. Today 6000xp is extremely popular and we...

For roughly the same price I can get 2x victron multiplus ii 48/5000 120v ,an ac coupled pv inverter, a grid meter, and a cerbo gx Or An eg4 18kpv, which already has a grid meter and DC coupled mppts, and solar assistant. The victrons will output about 8-10kw per mfg spec, and the eg4 will...

The whole system is connected to the main ground at the inverter. But then I just realized that the panels are sitting on aluminum frames directly on the ground ,so its like having a ground rod. Is this going to cause issues? Should I remove the ground at the inverter?

I understand how ac coupled systems can increase power but how do DC coupled systems do it. the inverter can invert 12kw from battery. how is it able to invert 15kw when pv is available? how is the system inverting that extra 3kw from DC to AC?

I told my wife I got a bonus and had to have a ton of self talk to not buy an 18kpv. I was looking at victron but their self consumption doesn't work in the USA. The only reason I would even want one is to seamlessly support ALL the loads in my house. She said "you spend so much on your...

So traditionally we've had grid tie inverters that connect to the main panel and push all the output to loads or the grid during the day, Or Battery backup systems where you have a protected loads panel that's supported by the battery inverter, usually for grid down power and because most...

during this last winter storm , where our temps in DFW fell to as low as 11f, my three heat pumps went into various stages of failure, where they either didn't heat sufficiently or refused to produce any heat at all. I'm going to do what it takes to fix them, up to and including replacing them...

These guys are something else. I was looking at their 20s packs then david poz made a vid on them and they sold out a week later. So when he made a vid on the 8s packs, with 10% discount, I jumped on them , far before I needed them. Good thing I did cos they sold out a few days later. Almost 3...

spent an hour editing this and adding audio and it got messed up. not spending the time again. you can easily see whats happening. @sunshine_eggo wanted to know, what happens to the power when the battery is full and a heavy load turns off. the answer is here. first clip water heater turns on-...

For every solark thread or video I see on the Internet, I'm seeing at least two for 18kpv and 5 for eg4 6000xp. When the 18kpv was announced solark quickly dropped their prices. Now the 6000xp is the new kid on the block and they are everywhere! Where does that leave solark? It seems no one's...

hi guys, I finally got my system set up after 1 SOLID year of researching solar PV here there and everywhere and 5 years of solar home building research and planning. I built my passive solar house with pv in mind. No penetrations on the south side. The optimizer said 32° roof angle facing 4...

I want to monitor one breaker for feed and back feed? What's the cheapest option that will log data and be accessible over wifi? Thanks

2x 280ah lifepo4 batteries 200a jk bms victron shunt currently sitting at 53.3v and 71% soc i have charging set at 50a and within 3 minutes it will go from 53.3v to 55.2v and stop charging. is this normal?

Bought some batteries and 2 of the 6 packs have a broken weld at the busbar. All the cells(8s) have welded busbars and bolted into one unit so I imagine it would be difficult to try to replace just the one. Im wondering if this type of terminal can be tapped? Or what can I do? Thanks

say I have 3 280ah 1s packs and the positive cables from each one to the main bus bar are different lengths, eg 1ft, 2ft and 3ft - is this bad for a battery system? and what will happen if this is done? thanks

https://www.homedepot.com/p/DEWALT-Yellow-3-Tier-Wire-Steel-Garage-Storage-Shelving-Unit-50-in-W-x-48-in-H-x-18-in-D-DXST4500-W/303512198

Such a great time for diy pv. Competition is heating up! Check this one out! $3600. https://www.aimscorp.net/product/hybrid-inverter-charger-9-6-kw-power-output-15-kw-solar-input/

https://powmr.com/products/stack-battery-storage-51-2v-100ah Seems like a good deal for 20.4kwh, if it will actually hit it's specs

I love my minisplits. I can't go back to regular units. But, they just arbitrarily decide what temperature they want to be at, and practically ignore the thermostat. Why? I like to set the temp to 74 degrees at night, in the summer. At least 8 times out of 10 they will be at a temperature...

Anyone have any info on this? 105lbs!!!

I'm no stranger to learning and diy. I built the house I'm living in with my two hands and it took a lot of planning and research - framing, electrical, HVAC , drywall, septic etc. That was childs play compared to solar. No wonder the unsuspecting public easily falls prey to solar salespeople...

My 3 midea heat pumps 24k,18k, 18k, have never used more than 6800 watts combined peak in the cooling season. I turned the heat on a couple of days ago and the three together were pulling 8500 watts peak Does anyone know why this is?

Very generous gentleman in Kansas offered me 10. For free!. don't need anywhere that much so I took 4 which should be more than enough. Each one is 4ft x10ft and weighs maybe 150lbs. He said if anyone wants some come get as many or as few as you want. He has 6 left. Let me know if you are...

Have two- selling as a pair. $1400 plus shipping for both. One is brand new, used once. Second one is very lightly used but in excellent condition. You're basically buying one new and getting the second one for $300

I'm exploring using an aio inverter solely as a charge controller. it has two mppts up to 500v. I can have up to 8000w of solar attached. but it says it has 80a max of charging, which at 57.6v is only 4600w. so does this mean that even if I have 8000w attached it will only ever charge the...

https://diysolarforum.com/threads/my-solar-pv-journey-is-officially-ending.61214/ I had decided not to go solar due to the cost vs benefits. Well, after being on here a while and seeing some great deals, and doing endless spreadsheets and calcations, the decision has been rescinded! ? I...

So on paper east and west should have the same production correct? But like the heat gain through a window, east and west should have the same heat gain but west ends up having more because of higher ambient temperature. So, since temperatures are lower in the morning(summer time) does it mean...

hi, this unit is out of stock at signature solar. are there any other 500v mppts in that price range? ($400) thanks

Panels have a vmp of 30.8(voc 37) Inverter has a minimum voltage of 60v Will two of these in series with a nominal voltage of 61.6v start the mppt or is this too close to the minimum? I can run 3s but it would be less convenient

I'm planning to install 24 panels on my roof. The charge controllers I have are 145v maximum and I can go 3s2p without combiner, or 3s3p with combiner. I could even go 3s4p but that would exceed the 50amps of the charge controllers is 13.7a Anyhow enough useless info The panels will be 50 ft...

I'm not finding any data on the efficiency charging a battery from the grid. Is it the same as the battery to ac efficiency? So if an inverter says it's maximum efficiency is 93% does that mean that it would also be 93% going the other way? Ie from AC to battery?

I've seen quite a few folks who have a grid tied system and a separate off grid system. Eg will prowse. Just curious- how do you have the systems set up? What loads are on the off grid system, how much pv on each side, etc. Thanks

So I know the gtil inverters can send power from battery to a grid tied panel. But I've read about some longevity issues and lower efficiency. They are about $300 The next cheapest I know that can do this is the eg4 18k pv at $5600. Is there anything in-between that I should know of?