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Can you share how much that added to your ground mount cost please. I am an engineer, and my 12kw install was approved with free drawings from Unirac, and a lot of back and forth with my local idiots at the electrical supply monopoly. They insisted that I needed to pay added fees for a 15kw...

DId you have an approved engineering drawing with snow load, and wind speed listed? My local inspector wants the initial plan to have engineering approval stamps, how did you obtain those for your install?

I thought long and hard about installing LifeP04 batteries next to a cement wall in my basement. I even had a discussion on the subject with the owner of the forum . Will stated that in his opinion, "if wired correctly a set of Lifep04 batteries on a shelf is about as dangerous as a stack of...

Just wanted to comment, that if you install a "zero export grid profile" on enphase microinverters that grid profile worked very well for me for 3 months to allow me to operate my 12Kw PV system prior to the local supplier sign off. See image below... I was experimenting with trying to use the...

I have thought of this approach. I may just disconnect and roll the entire shelf to a non visible location. Still curious if anyone has had a local inspection approve a home build lifep04 battery. I assume folks in the past had cases where lead acid batteries (more dangerous and prone to acid...

I have 32 Grade A EVE 280Ah batteries on a shelf next to my Sol-Ark in basement, with 12kW of PV on the AC couple Gen pins. I added my batteries to the mix, AFTER I passed my PV install inspection, and got my permit to operate from the local electric supplier. I am now considering adding some...

Just curious what kind of results you achieved with AC coupled solar on the Gen port when off grid. What grid profile did you use, and what Enphase inverter model? With my 12kw array and Iq7a micro inverters gen connected, I was unable to get the Sol-ark to not export power , and if/when I...

This is exactly correct, I designed my system and ordered my panels and the Enphase inverters BEFORE I decided that I didn't want a huge shiny solar array in my backyard that was useless whenever the grid went down, so I expanded my system plan to include the Sol-ark and 32 EVE 280Ah cells for...

I have a 12KW PV (Iq7a inverters on each panel) system up and running ac coupled to a Sol-ark 15k on the gen port. If/when the grid goes down the system allows the PV to continue to operate, but it is very "flaky" and will turn itself off/on during the day with full sunshine and non full...

Is there any reason why I cannot just take the 50A 12V battery charge output of the Victron and connect the +- 6Awg wires (about 3 feet long ) directly from the Victron Scc, to the 12V 2/0 cable posts on the Xantrex inverter? There is an 80A DC circuit breaker on the + cable departing the SCC...

I fretted for many months about installing home built Lifep04 batteries in my basement, on a rack next to a cement wall. Did my investigation of the risk and reached a conclusion. My conclusion is that as long as you connect them correctly and the device they are connected to is fused, or has a...

I am just adding my experience, just spent an hour unable to turn on discharge from my two 4s 12v Lifep04 batteries with a 200A JBD BMS. I started using the overkill app a few months ago and it appears to work, however the version I am using (just deleted and re-installed from the App store) is...

I have space and would like to add 10 panels to my current 12Kw ground mount array. 4900W picked up locally for $2050 = 42c/watt. After 30% tax credit PV for 29c/watt.. Oops... Local Seller just informs me panels are not local, "free shipping" means $2550 for 10. So.. 0.36/w after 30% tax...

Thank you that is exactly what I have done, and what the local inspector forced me to do. However it is not "just" the array, it is also the ground connection from inside the combiner box, that is connected, and this same ground travels up to the home in the main run. IE the combiner box ground...

Can you please clarify location of SPD's, I have an enphase IQ7a system , so 3 10 panel branches all enter a combiner box, each input has 20A AC circuit breaker, then all 3 are combined for the home run. I completed the Enphase installer training, and none of them mentioned any need for added...

My local building inspector would not pass my ground mount PV array with 30 panels mounted on Unirac rails, bolted to 2 inch galvanized well pipe, inserted into ground screws. He insisted it was a code requirement to have a ground rod at the array. So I agreed (of course) and installed one...

pJust wanted to edit this post to add my experience with accessing the Envoy locally, and finding the off-grid profile that worked with my Sol-ark 15k, and my IQ7a inverters. I first tried using my cell phone installer app, and had no success within the app. I then ended up using my laptop, and...

Ampster I got this reply from Enphase, when I asked them to share the Off-Grid FW60 No Export grid profile with me. ================================================== Thanks for contacting Enphase Energy. Hope you are doing good! The grid profile "Off-Grid FW60 No Export" is not available in...

Hello I self installed 30 Enphase IQ7a inverters on my ground mount system , commissioned same in October of 2022, so unless the rules have changed since then they did not require a cell phone connection for commissioning. I took the online classes and am now a certified installer Lastly, the...

Ampster.. just to be clear , with the current "Off-Grid FW60 No Export" grid profile installed, and my 12Kw PV AC coupled only input, I have been charging batteries, and supporting loads for > 24 hours. My 30kWh battery bank was charged to around 93% when the sun went down last evening, and...

Hello I have not yet shared the enphase data showing that the Sol-ark frequency is shifting up, and causing the IQ7a inverters to turn off. I am sharing my attempts to run "off grid" with only AC coupled PV (12Kw) and 30Kwh or battery storage. I will share updates as I learn more. I am going...

Thanks again for the inputs, will let you know what I learn, but with my 32 EVE 280Ah cells, I have now demonstrated that I can run my entire home for 24 hours off grid on days when there is good PV available, and this off grid profile. My experience on grid using my battery overnight, I only...

Ok, interesting, not sure how you know this, but thank you very much.. The "tech support" at enphase wasn't the best, but they did suggest and install this grid profile. Is there any risk of flipping my connection back to the grid, and leaving this grid profile installed?My guess is the...

I agree, and have data from my enphase installer app that shows the AC frequency is moving around and does indeed appear to cause the micro inverters to go off line if it goes > 60.5 Hz see attached

Good afternoon I think I have a reasonable solution to operate with AC coupled PV off grid. I spent > 1 hour on the phone with Enphase Tech support this afternoon. They watched my system go from >9KWh to 300w several times while my main grid feed was disconnected for my experiment. They...

I experimented off grid with IQ7a inverters and the ieee2015 zero export grid profile. AC coupled to the solar 15K genpins. Goal was to have the enphase zero grid export profile control the iq7a's and ramp them up and down as needed to support battery charging and load. My findings are if the...

Thought I would chime in here, I have a Sol-ark 15K installed since October of last year, and 32 Grade A eve cells from 18650 battery store . Batteries arrived perfectly packed, and in perfect condition. I have 2 JK 200A bms running, and both batteries connected to the Sol-ark. I am still...

For what it is worth, I have a Pixel 5 running Android V13 and the app from the playstore installs and works on my phone. I had one loose bus bar on one cell, that caused that cell to go overvoltage, and charge stopped, addressed that issue, all cells now well matched, but the SOC for that...

Hello, Thanks for the feedback.. I will do more investigations .the JK BMS shows a resistance for the sense wire on every cell, and they are all consistent and low... but again I will loosen and tighten the sense terminal on that cell, and see if it fixes the issue., will update this post. Ok...

Purchased 32 EVE grade A cells from 18650 Battery store, arrived fast, well packed, perfect condition last July. Have one cell acting up .......V jumps from 3.2 to 3.8 when charge current applied and BMS shuts down charge so bank cannot be charged. Contacted them and shared BMS screenshots...

Hello This does reset all of the setup parameters, but is does not reset the cycle count, any way to reset that parameter? Thanks

Just an update, I have two batteries , and disabled the charge on the one that is operating correctly to then use the charger to find out how much power the battery that read zero SOC before the sun came up. After a very short period of charging it now reads 98% charged, and it did not get...

Hello I have JK bms with 2A balance current controlling 16 Eve 280Ah cells that are configured into a 48V battery. Issues I have is it appears that the BMS cycle count has jumped and is inaccurate (In use < 100 days, but cycle count is > 300). One cell #14 jumps from 3.3V to 3.8V which then...

double post in error, second post deleted

"IEE 1547 DEFAULT 2015 , No export" is the grid profile that works perfectly to allow battery to charge, support loads, and when battery is full it gracefully decreases the PV on sunny days to just meet home loads. Note that I had to call Enphase tech support to install this profile I did it...