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    Anyone using Sunny Island with the EG4 power pro battery successfully?

    Thanks. Still not 100% sure what is needed. Would like to know that they will really work before I invest in them. Hope to hear from some more people and see what their experiences are. They have to work and be reliable. We have new solar billing in Calif that requires it unless we want to get 2...
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    Anyone using Sunny Island with the EG4 power pro battery successfully?

    Thanks. This is the firmware in the inverter now. So should be ok there. I know the REC bms works the with SI and if the EG4 batteries don't work, that would be a fallback option. Just don't want to go the DIY route yet. One of the DIY issues is trusting the company you buy the batteries from to...
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    Sunny Island and EG4 Powerpro help

    Thanks. It would really help to know that this would really work with the Sunny Island that I have. I don’t want to spend a lot of money on batteries only to find out that they don’t work sometimes. And there’s probably a bunch of people who have Sunny Islands looking for new batteries now also...
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    Anyone using Sunny Island with the EG4 power pro battery successfully?

    Is anyone using a dual Sunny Island set up with the EG4 Power Pro batteries and BMS communication successfully? I’ve seen some threads but not exactly sure how successful those set ups were or still are. One post said you had to install a termination resistor, a BMS cable and put another...
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    Sunny Island and EG4 Powerpro help

    OK, yes. Better if it can communicate. So we need to follow the instructions above on the previous pages also? I.e. add the resistor and add that communication cable and a termination somewhere? Not exactly sure of the exact steps or procedure or parts
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    Sunny Island and EG4 Powerpro help

    What are the steps/parts needed to make the EG4 battery work with a 2x SI6048 system?
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    Sunny Island and EG4 Powerpro help

    I'm in the same situation. 2x SI 6048 and looking for battery since we are in CA and PGE just dropped the new Solar Billing program. Is it all working? If yes, I would get the EG4 batteries. seems to be the best cost/kw now. It was a mater of a new cable and a termination plug at the proper...
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    CA RESIDENTS: I am seeking advice. NEM 2/3? EV CHARGING? OFFGRID? ETC

    I mean have the employer do it for the employees
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    CA RESIDENTS: I am seeking advice. NEM 2/3? EV CHARGING? OFFGRID? ETC

    How about installing one of these at work.? https://apple.news/A_ejKwK7xRMWapKf0-JhZQA
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    CA RESIDENTS: I am seeking advice. NEM 2/3? EV CHARGING? OFFGRID? ETC

    Charge the Tesla at work during the day? Maybe buy a charger and see if company will let you do that. For our 20 mi commute, we charge from 10am to 12pm at 48A (11.5KW), but we can do it form home. For those with "normal" 9-5 jobs, would it not make sense to charge their EV's at work during the...
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    CA RESIDENTS: I am seeking advice. NEM 2/3? EV CHARGING? OFFGRID? ETC

    We just installed a 9,000 but mini split. Really nice. Got a 240v unit. Pulls about 4.5A on max settings. 1,100 watts. Makes the room into a freezer almost. Cost around $1,000 last year. Just looked up the price and its $1,400. Bummer. Super, super quiet. Window AC is a lot louder. You can sleep...
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    Mounting solar panels on a 40 foot container?

    It is interesting that your peak is like 3 hrs before mine (2pm vs 5pm). You can adjust things. If you want later peak, you go more vertical. If you want earlier peak you can angle the panels more. Me, I wanted more power later in the afternoon. As late as possible and practical.
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    Mounting solar panels on a 40 foot container?

    Yes, that is a good idea. It does not have to be continuous. That would bring the costs down dramatically. Cut to about 3" long so that 1 "clamp" holds each panels at the corners. Or in the middle, no big difference, but way cheaper. By the way, the way they are set up is that each panel is...
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    Mounting solar panels on a 40 foot container?

    Pretty much. South panels are 20 pc 310 watts so 6100w, West panels are 325 x 19 panels so 6175w . West panels peak 4.4 kw at 5:15pm South pole tops peak 12:00pm 4,900W
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    Mounting solar panels on a 40 foot container?

    Yes, I looked at those. Trying to keep a small gap between the panels for air flow, but not so big so as to let mice build nests behind the panels. The ideal material would be 3" black anodized flat aluminum bar. But it is way too expensive. Need 80' of it.
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    Mounting solar panels on a 40 foot container?

    Any ideas for thin bar stock that would work? Need something 3" wide ideally. 3" steel 40' + 40' (top and bottom) costs $1,000 at Home depot. Metal supply should be cheaper, but that is still a lot. Metal roofing edging is less, but also a lot thinner. If I used 2" x 2" x 10' edging, it would...
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    Mounting solar panels on a 40 foot container?

    Very observant! Yes, the boards could be thinner or beveled a bit. Thin metal strip could solve that. Pipe will be shortened. Yes, all things to consider. Will see how I can improve it. Work in progress...
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    Mounting solar panels on a 40 foot container?

    Post some pictures. Always looking for new ideas.
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    Mounting solar panels on a 40 foot container?

    Great! Right. In Winter this is not go great, but I am trying to get some of the "higher hanging fruit" so to speak. When panels cost $4.50/watt this was too expensive to do. So people did a lot of pole top mounts that could be seasonally adjusted. With panels costing $0.10 to $0.20/watt it is...
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    Mounting solar panels on a 40 foot container?

    Quick Update: The peak production of West facing panels is about 5:30pm. For comparison, top-of-pole South facing panels peak at about 12:00pm and they pretty much end production at 6:30pm (500 W). At 6:30 pm the West panels are approaching their peak power output. So as one set of panels is...
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    Missing Sunny Boy Password Fix

    So, if you you got one of the newer (discontinued now) Sunny Boy inverters (3.8, 5.0, 6.0, 7.7, etc.) and there is a password already set and you don't know it, you need to get a PUK (Personal Unlocking Key) for the inverter. To get the key you need to give SMA the serial number of the...
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    Sunny Boy error messages - time to get a new inverter?

    I think that is for the newer inverters. For the old 5000, 6000, etc. the password is the checksum of the date as I remember. 4/26/2024 is 4+26+24 =54, so password is ID0054.
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    Sunny Boy error messages - time to get a new inverter?

    I know this is old, but I got a Vac bfr message once. It happens when the voltage goes over the max set point. For me it was Vac>264v. = 240V +10% max. = 264. So it was hitting the +10% max limit and turning off. During the day, Vac gets pretty high here. You can use the Sunny Data control to...
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    Mounting solar panels on a 40 foot container?

    Well, it’s mostly done. Interesting experiment. West facing wall at this time of year in April puts out about 50% of the power of south facing polemount panels. It does seem to give me at least one extra hour of full solar power in the evening, and of course it evens out the duck curve. Most of...
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    Fixing Sunny Boy UV Damaged Screen

    Short version - use the Sylvania headlight restoration kit to get rid of yellowed sun damaged screen. Long Version - The headlights on my truck were really badly UV damaged. Got the Sylvania headlight restoration kit based on a good test by Project Farm on You Tube...
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    Mounting solar panels on a 40 foot container?

    I might do that. Now I'm thinking of making a frame out of 10' or 12' 2x4's and attaching to the top and other side. Container is 9 /12' tall. No holes required that way. Can be 90 deg vertical and will allow for some air behind the panels. Have plenty of power at noon. If it does not work, can...
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    Mounting solar panels on a 40 foot container?

    It is. 50% less production. I checked. But with new panels under $0.30/watt, you can't really go wrong. The roof is already covered with panels. Just want to get more power during the 4-9pm peak rate time and see how it works. A vertical N-S wall of vertical bifacial panels is also interesting...
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    Mounting solar panels on a 40 foot container?

    The container wall is facing west, and I want to take advantage of the afternoon/evening sun.
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    Mounting solar panels on a 40 foot container?

    Looking at filling a vertical wall on a 40 foot high cube container with solar panels. Has anyone done anything like that? How did they mount them? Attaching two by fours to the container and then attaching the panels to that is the cheapest, but not sure how strong it would be. Unistrut would...
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    Clearing SMA Sunnyboy 7.7 error code 3701, 3501

    Hope this helps somebody in the future. This has got to be the most difficult troubleshooting I’ve ever had to do with this inverter. Now, having solved it, the solution seems so simple. Short version If you found and fixed all the faults and the inverter still shows the 3701 or 3501 error...
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    Good 18650 batteries on Amazon?

    Thanks. Ordered a few at LIION website. Price is reasonable and shipping not too bad. Too much of a wild west on Amazon for batteries. Not anything I wanna deal with.
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    Electric water heater: Any insight/experience?

    Thanks. I saw a bunch of videos about that anode thing. Is it really that bad? Or is it the people had really bad water.? By religiously you mean what every year, every six months?
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    Electric water heater: Any insight/experience?

    We just got the 4 gallon Bosch Model. Ours has used about .73 kWh per day so far in the winter. Just occasional dish and handwashing use and dishwasher every other day. Real numbers: 11.55 kWh used in 379 hours.= 0.73 kWh per day on average so far. Sure beats waiting for hot water to get to the...
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    Parallel strings and overpaneling or how to maximize PV production on a single inverter.

    Looks very interesting. You need to do careful planning. I like the look of the "total power curve," but if you inverter is already maxed out, you might be better off with another inverter that can take the am and pm sun, othwise it might do a lot of "clipping."
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    Good 18650 batteries on Amazon?

    Are there any good 18650 batteries on Amazon? I see too many with bad reviews and massively overstated capacity. I see that the 18650 battery store has a bunch, but trying to avoid shipping fees. Has anyone gotten any that are good and stated capacity is correct? Seems like there are a lot of...
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