Recent content by magic8192

I have a manual 200 amp transfer switch. When the transfer switch is up, it feeds power from the grid to the backup power on the Sunny Island inverters. When the transfer switch is down, it feeds power to the secondary loads panel. I have a manual lockout switch between the Sunny Island...

I am almost done. Looks messy because it is

I watched a bunch of videos from SMA and according to them I can push power on the grid with any grid tied inverter. If I hook it up exactly like I have planned Secondary panel AC1 and Grid AC2, I just set it to allow excess energy to flow to the grid. One other thing, the breaker for the SI...

I have a sunny boy SB4000 w/DC disconnect. It is an older one so I am sure it doesn't have the frequency-watts adjustments. It is a never used 2012 model that was ultra cheap.

Unfortunately I don't have power adjusting inverters, they weren't available when building the original PV system. I will see how it works for a while. I might try something moving forward like using the excess energy for bitcoin mining? Reconfiguring my PV is not impossible, but will...

My micro inverters drop offline :( I wasn't aware that you could backfeed PV to the grid using the SI 6048-US? It probably isn't worth it because I get paid producer rates, about 4 cents / kwh I have 48 280 amp hour LiFePo4 LF280k cells. I expect these to pay for themselves in about 7 - 8...

My plan is to run off grid and charge from the PV. Using the AC2 only when PV can't keep up. Lots of cloudy days. The secondary loads should run off the battery at night. My understanding is that if the battery is charged and there is not enough load, the PV micro inverters will turn off...

I don't have a generator. The plan was to use the grid as backup to charge the battery if it gets low. Did not know about the 5 sec delay. My 200 Amp sub panel has a main disconnect that I can interlock with the breaker going to the SI. Maybe I should just not use the Grid as a backup? I...

The manual labels AC2 as generator/grid and I was using that loosely, my bad. When I said generator, I mean AC2 of the SI. My idea was that if there was no sun and the battery was low, the SI could swap over to AC2 (which is connected to the grid) and charge the battery. I wasn't aware that...

When the Transfer switch is in the down position, I run the PV grid tied. The system is currently running grid tied. The new stuff is the SI/Battery/60 amp safety disconnect/wiring to SI generator backup. (Everything in the top left quadrant of the picture.

Transfer switch down feeds secondary loads panel from grid Transfer switch up feeds generator backup on SI My battery room is attached to the house and my understanding is that I have to be able to disconnect power to the house in case of fire. I do not have an interlock.

Here is a basic diagram

I will try to get a diagram of my setup so it is easier to see what I have.

The batteries are all top balanced. Now just have them all hooked together waiting for me to have the time to build the battery.

I am just going to use something like the pic below, which seems to be accomplishing the same thing you did with splicing 2 wires into one. I have to have the disconnect on the outside of the house near the mains coming from the power company. I have the solar disconnect and the battery...