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  1. magic8192

    System planning for an AC coupled Grid tied system

    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...
  2. magic8192

    System planning for an AC coupled Grid tied system

    I am almost done. Looks messy because it is
  3. magic8192

    Sunny Island 6048 wiring question

    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...
  4. magic8192

    Sunny Island 6048 wiring question

    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.
  5. magic8192

    Sunny Island 6048 wiring question

    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...
  6. magic8192

    Sunny Island 6048 wiring question

    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...
  7. magic8192

    Sunny Island 6048 wiring question

    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...
  8. magic8192

    Sunny Island 6048 wiring question

    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...
  9. magic8192

    Sunny Island 6048 wiring question

    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...
  10. magic8192

    Sunny Island 6048 wiring question

    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.
  11. magic8192

    Sunny Island 6048 wiring question

    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.
  12. magic8192

    Sunny Island 6048 wiring question

    Here is a basic diagram
  13. magic8192

    Sunny Island 6048 wiring question

    I will try to get a diagram of my setup so it is easier to see what I have.
  14. magic8192

    System planning for an AC coupled Grid tied system

    The batteries are all top balanced. Now just have them all hooked together waiting for me to have the time to build the battery.
  15. magic8192

    Sunny Island 6048 wiring question

    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...
  16. magic8192

    Sunny Island 6048 wiring question

    I have a pair of 120V SI 6048-US inverters and The plan is to wire from the Sunny Island to a 60 amp disconnect to the secondary loads panel with a 60 amp breaker. Each inverter is wired L1, neutral for inverter 1 and L2, neutral for inverter 2. I have 2 neutral leads and I am not sure of the...
  17. magic8192

    System planning for an AC coupled Grid tied system

    This has been moving really slow. Mainly because I couldn't get batteries. I now have 48 280 ah LiFePo4 batteries that I have been top balancing. The REC Q Series BMS 16S is on the way and all the wiring on the outside of the house with the exception of connecting the wires from the SI...
  18. magic8192

    For a 15KW microinverter grid-tie system, is battery backup even possible

    If you have CA rule 21 grid tie inverters they may work off grid. I have never tried this, but CA rule 21 is to have your inverters automatically lower their output as Hz increase on the grid. https://diysolarforum.com/threads/enphase-ac-to-hybrid-system.12611/post-166434
  19. magic8192

    I can't find a suitable BMS for a large LifePO4 prismatic 48v bank

    You can discuss your battery setup via email with batrium. info@batrium.com
  20. magic8192

    Our NEW GO-TO LiFePO4 vendor...09.20.21

    I know that a while back CATL claimed to have a million mile LIFEPO4 battery for electric vehicles. Tesla is currently using the "million mile" CATL LIFEPO4 battery in some of their electric vehicles in China.
  21. magic8192

    Our NEW GO-TO LiFePO4 vendor...09.20.21

    I did a capacity test on one of the LF280k cells.
  22. magic8192

    Large (size and power) solar panels

    Check out fred480v on ebay. He has been selling solar panels for a long time. I have used him and got exactly what I expected.
  23. magic8192

    Our NEW GO-TO LiFePO4 vendor...09.20.21

    Put a deposit on 11/24 and paid in full on 12/10 They arrived on 12/24
  24. magic8192

    Our NEW GO-TO LiFePO4 vendor...09.20.21

    I have some work to do. 280k cells arrived. WOW!
  25. magic8192

    Any cool Battery Monitor/Info Display panels?

    It uses the clip on current transformers, so maybe not so useful.
  26. magic8192

    Any cool Battery Monitor/Info Display panels?

    I use the sense. Great historical data for solar/power usage. Several different views to track power and solar. I can access the data via a computer or phone app. Pretty handy. Maybe not useful for tracking battery cell info.
  27. magic8192

    Our NEW GO-TO LiFePO4 vendor...09.20.21

    When exactly do you expect more EVE LF280k cells?
  28. magic8192

    Pretty satisfied with the grid tied solar so far. Future battery plans

    This is grid tied solar. About 75% of the reduction is from the solar and the other 25% is from lifestyle changes. The house is all electric and I run the hot water heater/ dishwasher / washing machine / dryer during peak solar when possible. The future plan is to get a 43Kwh battery and...
  29. magic8192

    Electric water heater with timer and thermostatic mixing valve

    My hot water heater always runs on the solar. The only downside is if there are heavy clouds. If I notice this in the morning I will switch the timer off and try the next day since the tank has enough hot water for 2 days.
  30. magic8192

    Electric water heater with timer and thermostatic mixing valve

    I have a few comments about using a hot water heater with 180 degree thermostat, a mechanical timer, and a mixing valve. The things I have changed since originally hooking it up. I put scald guards on the showers so the kids don't accidentally get hurt if something goes wrong. I originally...
  31. magic8192

    Electric water heater with timer and thermostatic mixing valve

    This has worked better than I could imagine. I get paid very little for the solar I push onto the grid, so this maximizes my solar power usage and benefits me, not the power company. The power bill stats told me that the hot water heater was 19% of my power bill, but the power bill went down...
  32. magic8192

    slippery coating for panels

    I just use a squeegee and a water hose.
  33. magic8192

    Redundant Solar-Wind-GenSet power system runs 400m² OffGrid house

    I like the flexible plugs. I was considering some wind power, but the amount of energy for the effort doesn't seem very good.
  34. magic8192

    System planning for an AC coupled Grid tied system

    Decided to go with the 2 Sunny Island 6048-US-10 inverters.
  35. magic8192

    Chargery 2S-16S 300A BMS 9 total.

    Pm sent, Interested in 2
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