Recent content by YellowBuddy

Several years ago, I converted off of my oil fired hydronic system. In doing so I had a bunch of leftover parts (hydronic coils, indirect water heater, etc.) I kept all of it hoping to do a solar thermal setup somewhere down the line and I finally picked up some cheap new/old stock flat plates...

That's your SB and your SB only. If you're going to be doing a grid-tied installation with battery backup which is what your original post seemed to want to do then you should be sizing beyond just the SB. If you're using aluminum. Not with copper. No, I suggest you keep up to date with...

This is a weird one. 50DP breaker in the house that feeds the sub right? 4 AWG AL or CU? Installation manual calls for 4 AWG copper. Stepping down to 8AWG would limit you to 50A and the SI's have a 56A pass through capability. You would need to configure it appropriately and install a...

Thanks for the confirmation. Just went and popped them all out. Screw driver goes up, slight pressure downwards and they slide right out.

I purchased a set of used Sunny Islands to compliment my existing ones. The AC1 and AC2 connectors are different than the screw type of my current ones. Does anyone know how to release the wires from these? The previous owner cut the wires instead of pulling them out proper. They seem like...

Sorry, it's sold.

New and unopened. Can be opened for pictures upon request. 320lbs 52" x 37.5" x 12" is the box dimensions. Freight shipping or local pickup only. Asking $6500.

SOLD!

Just to clarify, it’s the usage of a Vac breaker that’s the problem. Using a Vdc breaker is fine. It’s exactly what commercial UPS system do: Just make sure you use a DC breaker, or one that handles both AC and DC like the one above and not just an AC one.

Brand new. Purchased 3. One for each positive, negative, and ground but ended up getting an enclosure that came with bus bars already. Asking for $125 shipped.

Is there a reason why? Is it just efficiency? If so, I have a couple of thoughts but they won't be purely solar related. If efficiency is top of mind and you don't mind taking the time or spending the money to get a truly great functioning system, I think there's a couple of additional ideas...

- 10kW SMA SB w/ Sunny Island 48V - 27kW Solaredge w/ Sunny Island 48V - Both Grid Tied - DC/DC 48V Generator The system operates very much like a UPS, but it’s fully configurable. So I can cycle the batteries everyday if I wanted to, but it seems a waste to use cycles when the grid is...

I plan on using mine in a backup capacity, but a bit concerned about essentially storing them at a high state of charge. Keeping them at 40% SOC would seem to defeat some of the positives associated with a LifePO4 system. How is everyone handling this? Are you keeping them at a low SOC in...

Not an expert, but here's my novice opinion. 1) Schneider uses their Xanbus for communication on the XW6048. If you don't trust your BMS, it seems they make a Conext Bridge to help it communicate...

Try PVWatts (https://pvwatts.nrel.gov/pvwatts.php) 50kWh/day = 1,550/month or 18,250kWh/year. Ghana gets on avg 5.12hrs of sun per day. There will need to be some system details but if you want to average 50kWh/day with a hybrid/net metering system you need a system that’s about 13kW-15kW...