r/SolarDIY 10h ago

Solar-powered outdoor network stack?

0 Upvotes

I had solar installed a few weeks ago , everything working great so far. The array is ground-mounted, about 150 feet from my house, running off microinverters (enphase) with a buried cable. When the contractors filled-in the trench, I tossed in a run of armored fiber optic cable so I could setup a little network stack down by the panels. I am a dumbass though: I figured I could connect to the breaker panel at the array so didn't run a second electric wire, plus direct buried instead of using conduit. End result is a nice piece of fiber next to a power source that can't power it.

I have no interest in re-digging the 24' trench, so I'm looking for off-grid options. My though right now is to build something like a small raised [chicken coop](https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcSkSxJwDfO3K1RZ1t52yfkvYOk-7b8R0ACG7WFrp304ZnBwAgB2kOOxA7Q&s=10) beside the array, put my network stack in there, add a heated lifepo battery, charge controller, inverter, and a solar panel for the roof. I'd be powering an SFP/ethernet [switch](https://www.amazon.ca/Port-2-5G-Managed-1x-SFP/dp/B0CNGLG54S/), an outdoor AP, a lora node, and possibly one of those ubiquiti dish antennas for beaming signal across a big open space. I think it'd be 30W of draw at the high-end.


r/SolarDIY 20h ago

50A subpanel transfer switch or 200A hybrid inverter for battery only no solar?

0 Upvotes

I currently am cross shopping subpanels and inverters. I’m looking at the current sungold deals and for an extra $1000 I think the 11.4kw hybrid inverter paired with a 16kwh yixiang battery pack would be a good option for me as we have power outages multiple times a month and having an automatic switch to battery power is personally valuable since im not always around. Grid power is only $0.15/kw here and I dont know if we will live here more than 5-6 years so I don’t really think we will see a payoff in roof solar, but I am planning a carport and chicken coops that I wouldnt mind putting a few panels on just to run electric fencing for predators and 1-3kw charging to a 3.6kw ecoflow delta pro i have. But if i got the hybrid inverter I could charge to the home battery instead.

Would it make more sense to just get a 48V split phase inverter for $1600 + $400 for a subpanel and have no solar at all? Or spend the extra $1000 on the hybrid inverter and permitting to put it between the grid and the 200A house breaker?


r/SolarDIY 9h ago

asphalt tile roof mounting

1 Upvotes

I had a company do a bad install. Mounting feet were not set into roof rafters, but instead the decking. Anyone know if there are replacement mounts that can sufficiently be mounted to decking instead of the rafters, so that the mount locations/flashing can stay in the same spot?


r/SolarDIY 8h ago

WiFi solar disconnect?

1 Upvotes

Hello DIYers,

I was wondering if there is a solar disconnect device that can be controlled via Wi-Fi.

The weather has been consistently clear lately, so the 16kwh battery often gets fully charged during the day.

Sometimes, it is already fully charged in the middle of the day.

I think it would be a bad situation for keeping the battery healthy.

If such a device does not exist, what solution would you recommend for this situation?

Thank you in advance!


r/SolarDIY 50m ago

Battery in Parallel

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Upvotes

Im out of words after I saw this, the bend angle, the routing, the mixture of cables, lugs and everything in between. My understanding is that for parallel setup every thing must be same.

Also are the SPD supposed to be daisy chained like this, AC IN, AC Out, and PV SPD?


r/SolarDIY 21h ago

Battery died. Looking for new recommendations.

2 Upvotes

Purchased this battery 8 years ago. I have it connected to 100w / 12v monocrystalline solar panel and a 30A PWM controller. Is this still the best option:

https://a.co/d/06USIzIE

UPDATE: this is for my chicken coop, and the power is used to operate my door, cameras, and charge phones, etc.


r/SolarDIY 5h ago

I ordered a 12.8v 100ah GreenOE lifepo battery for random projects. It's doable right out of the box

3 Upvotes

After receiving the item I now see the Amazon reviews and YouTube comments on this battery often being shipped this way.

I contacted the seller and they are giving me the run around demanding pix and saying I need to pay for return shipping.

Amazon says if they don't pay for shipping I will get a refund and get to keep the battery.

Since they sent me and many others bad batteries I thought I'm going to crack this open and check the battery and cell voltage. Pack voltage is 4v.

I bypassed the BMS and I brought it back to life using a variable power supply.

I charged it up to about 11v or so. Then started using the BMS to charge it up the rest of the way.

I was able to get the app working but that was a hassle to. It kept updating and failing over and over.

Anyways I charged it to 100 soc. Then immediately drained it with a load tester at 20amps. It came in at 98% of stated capacity.

One other thing is that the BMS kept kicking off at about 62amps while charging.

The listing claimed 100and charge and discharge rates

What do you guys think? Think this battery will be good?


r/SolarDIY 7h ago

Is 70ft too far between eg4 12000xp and Grid/Critical Load?

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27 Upvotes

eg4 recommend 3awg...would I need a thicker wire?


r/SolarDIY 22h ago

Lights dimming?

6 Upvotes

I have my solar (with battery bank) running to a transfer switch in my house. It doesnt run much, but it has the well pump, 2 refrigerators, and the lights in 2 rooms on it. Whenever the well pump kicks on, the lights dim/flicker similar to in a lot of houses whenever a central AC kicks on. But it lasts longer than that, like prob a half second instead of the near instant with an AC. Is this normal? Is my pumpbat risk? All the lights affected are dimmable LED if that matters. Inverter is a 6000xp.


r/SolarDIY 5h ago

Where to buy higher quality switches, Breakers, etc...

7 Upvotes

I have some of those lower quality red tab flip Breakers ive seen folks use on the YouTube for projects from when I was just beginning and wanting to test. Now im setting up a couple of small mkre permanent projects, and those things are 30 amps but often trip below 20 amps if its even a bit warm out. Not even in tbe sun.


r/SolarDIY 6h ago

Batteries, inverter heat issues

2 Upvotes

Hi, all. I'm finding this sub to be a great resource for the solar neophyte. Thanks to everyone.

I live in Vegas, the Mojave Desert. I've been thinking about placing batteries and an inverter in a 400 sq. ft. shed, but it's a hot box in the desert sun. I also have a something akin to a trellis, although with a solid roof where I can install those items.

I'd hate to think I have to use a/c in the shed to avoid heat problems with the batteries or inverter. What are the practical considerations to avoid issues when installing these systems in desert structures?


r/SolarDIY 8h ago

Help me decide 3-phase 48v DEYE vs Victron (EU) hybrid

2 Upvotes

Deye vs Victron for a 48V home battery system?

I'm trying to decide between Victron and Deye for my home energy setup.

(I recently bought a 64 kWh 48V LiFePO battery bank (4 × 16 kWh modules))

My main goal is to charge the battery from solar during the day and once the battery is full, export any excess solar to the grid. (max 12kw) and at night when electricity prices are high discharge part of the battery and sell back to the grid.

For Victron, I'd be looking at something like

3 × MultiPlus-II 5000w + Cerbo GX MK2 + SmartShunt and at least 3 × SmartSolar 250/100 MPPTs

That puts the total around €3,500–4,000.

On the other hand, a Deye SUN-20K-SG05LP3-eu-sm2 seems to do almost everything I need in a single unit for roughly half the price, although Victron appears to have a more advanced ecosystem and monitoring.

For those who have experience with both, which would you choose?

Appreciate a lot for any answers!

I rarely post here but im going nuts by brainstorming this setup