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  1. M

    Sunny island 6048

    Don't have microinverters, but my 4 ton with the original hard starter caused lights to flicker and UPS to trip when the SMAs were off grid.. I changed the compressor hard starter out for a soft starter and that improved things alot. Then i replaced it all together for an inverter heat pump and...
  2. M

    Cryptic Crypto- How can I make $5 per day efficiently?

    Given infinite time at the current conditions you most certainly will get to (3). The question is what happens to the cryptocurrency markets around the ETH POS day coming. It's anybody's guess.
  3. M

    Cryptic Crypto- How can I make $5 per day efficiently?

    Just if your curious on what I'm working with. Though this morning Bitcoin is up. My true average is around $11 per day. All are LHR (Low Hash Rate) cards so they only mine 70% as well as the original release model.
  4. M

    Cryptic Crypto- How can I make $5 per day efficiently?

    Yeah i don't know enough to claim to be a good forecaster at this but with what i have read; my betting odds is Ethereum drops the bomb and pivots due to political pressure, the billion dollar mining spaces pivots to altcoins and causes cascade failure of each, and then attempts to liquify their...
  5. M

    Open letter to Will Prowse

    Now I'm guessing you don't understand how an online forum works either if you expected it to be only between you and Will.....
  6. M

    Open letter to Will Prowse

    To be fair that is a strawman you are setting up and should be acknowledged. Yeah it makes sense in that case to bank power (thats what i do) however Will's video referenced here is advocating for crypto mining by adding excess solar for no reason other than profiting off crypto when he could...
  7. M

    Cryptic Crypto- How can I make $5 per day efficiently?

    You joke but I'm living it. A retired miner gave me a box full of old and broken GPUs early last year to play with and I shelfed it. Sold them all this year on ebay for more profit than I'm every going to make mining. Broken 1000x series going for $200+ each; Working 470s for the same. It's...
  8. M

    Cryptic Crypto- How can I make $5 per day efficiently?

    BTW if you don't currently have GPUs i have bad news.... World sucks for getting GPUs right now. You have to either pay 3x-4x their usual price or spend weeks hunting a deal only to loose to bots who place orders faster than a human.
  9. M

    Open letter to Will Prowse

    Answered in your other thread. Yeah i get it. Personally I'm hoarding a handful of GPUS to get through the chip shortage and putting them to work in the meantime. I only started this to "bank" excess solar production I was loosing when my battery got full and couldn't feed the grid with (not...
  10. M

    Cryptic Crypto- How can I make $5 per day efficiently?

    Nicehash is a good way to start, it mines whatever is most profitable (and it supports) and pays you in bitcoin. You loose a little in their "service fee" more or less but that's the cost for making it easy. Put in your GPUs into their estimator for profit projections...
  11. M

    Open letter to Will Prowse

    I'm personally doing $6-7/day with 500 watts. So yeah that's reasonable. But no, I'm not interested in educating you about it. There are plenty of resources online (it's how i learned).
  12. M

    Signature Solar and shipping damage, are you a victim too?

    Wow as a comparison i've had a broken panel (clearly broken during shipping) in a 2 of the 5 pallet stacks from Santan Solar and every time they quickly refunded the exact amount i asked for with no hassle. Didn't involve the freight company at all.
  13. M

    Open letter to Will Prowse

    Or the planed Ethereum bomb and switch to POS that 'could' radically shake up everything we currently experience in cryptomining....
  14. M

    Its hot outside, boost your solar panel harvesting...

    Can verify, I get 10%+ boost when i walk outside and spray my panels. I put a temp probe on a panel and calculated per the spec sheet boost should be around 10% too. Yay physics! Panels sit at 145F in the sun right now. Debating an semi-closed loop system that runs sprinklers over the...
  15. M

    BYD packs — one year on — survey

    Yeah i suspect the supply dried up and all the bad publicity on health of the packs scared away all the usual "trusted" recycler vendors. Watching the market price of $ per kWhr has been interesting since the start of this. We seem to be drifting higher now. Glad i bought when i did.
  16. M

    Sunny island 6048

    There's a parameter for that! 232.08. Per the manual: And they mean it. If even by accident more than a few watts leaks back into the grid, the SMAs will sever grid connection and go off-grid for a 20 minute safety period, regardless of any other setting or command. Don't ask me how i know...
  17. M

    Sunny island 6048

    Yep you are seeing the SMAs act as "buffer" between load and generator, either sinking or sourcing power to always keep the generator loaded the same. It's the same premise as a Hybrid vehicle (except we don't need a motor to draw down or boost the engine), engines become much more fuel...
  18. M

    Sunny island 6048

    Well, to repeat: But no there more nuance to the different modes with the SIs besides just a wider tolerance in measured parameters. For example in grid mode frequency variations are considered a sign of issues with the grid and cause the SMAs to trip into off grid mode as precaution. In...
  19. M

    Sunny island 6048

    I never backfeed the grid, not permitted for it, so it's not a worry. And the real reason for this is the grid input tolerances are so tight by default, the SMAs would never accept power from my generator due to out of spec freq/voltage. So by switching the switch I'm making the SMAs accept the...
  20. M

    Sunny island 6048

    With the threat of the hurricane coming, I finally played around with generator input mode. Since the SIs only have one input, you have to switch it between grid and generator, which is already easy for me as the upstream breaker panel already has a generator lockout plate / connection for a...
  21. M

    Sunny island 6048

    If you look closely at the pic, there's no BMS / data cable coming from the Gylls to the SMAs. They must be using them in Lead Acid mode, which i loathe. Other people live with it though. I have second hand knowledge a Signature solar rep was asked about adding CAN support and SMA protocol and...
  22. M

    FIRE! Battery Hookup SHIPMENT CAUGHT FIRE! Huh Huh FIRE!

    Uhhh, what? The OP waited exactly one business day before publicly ranting online. That forces the company to have to respond, publicly as well. Especially when the situation has been misrepresented.
  23. M

    FIRE! Battery Hookup SHIPMENT CAUGHT FIRE! Huh Huh FIRE!

    I don't see alot of facts through the ranting. My understand after reading it three times was 1) Suppose to be delivered Thursday. 2) Friday it's marked damaged / destroyed in transit? 3) You call FedEx and they say it was destroyed in a fire. Did they say for sure it caused the fire or was...
  24. M

    My WhizBang Jr, and my 500A/50mv shunt equipped SMA SI6048 badly disagree

    Just say this looking at 6048 posts. If I assume the SI6048 is in lead acid mode, it calculates it's own SoC based on a complex and proprietary. I've tried my best to characterize it, before giving up and making my own BMS solution for it. The fact that it can't read your solar charge...
  25. M

    Sunny island 6048

    So here's a question. Has anyone seen actual documentation from SMA or communication from them that states whether the 6048s (or any of their battery inverters for that matter) are low or high frequency inverter topologies? I know every says they are low, but when I tried to search...
  26. M

    Sunny island 6048

    Gonna re-phrase Hedges a bit to make it a bit clearer. There are three low battery modes. (LBMs) LBM1 puts the inverter into standby and checks for loads periodically. This is really only meant for a cabin type setup where any load is infrequent. LBM2 puts the inverter into standby but runs...
  27. M

    Aims 1500w Pure Sine Wave Any feedback

    The larger transformer based 2kw aims has a transfer switch inside of it and is worth every penny.
  28. M

    Aims 1500w Pure Sine Wave Any feedback

    I have one. Will only do about 1200W continuously. Any more and it overheats and shuts off (in air conditioned garage well ventilated). Would start my 12k btu portable ac, but won't run it long before it overheats.
  29. M

    BYD packs — one year on — survey

    I was just finishing my discharge test after a year and came here to make a post about my past year using them. Glad I searched first! I have 8x in a rack to support my off-grid-ish solar install (I'm off grid till SoC falls too low, then I switch on the grid to hold out for the next days...
  30. M

    Design needs expert review

    A charge controller (The victron 75|15) connected to a buck regulator negates the Victrons ability to be a charge controller. Whether you wire the batteries in series or parallel it absolutely the same amount of run time for your load. Do not put any regulators between your charge controller and...
  31. M

    Sunny island 6048

    It's accepted risk. LiFePO4 doesn't start fires with abuse, just damages cells. I have alot of mass of cells (50kWhr) so most issues should arise slowly over time, and be caught with monthly high / low SoC manual tests. And i keep overall pack range between 51V to 56V. Cell damage doesn't occur...
  32. M

    Sunny island 6048

    You should take a look through my notes on github: https://github.com/madsci1016/SMAVenusDriver I work with alot of Computer Science PhDs that fancy themselves hardware designers (or think it's something easy they should be able to do) and design their own electronics, and i always see alot...
  33. M

    Sunny island 6048

    Yes, the SunnyIslands expect to talk to a BMS over the CAN bus when in Li-Ion mode. They have a 485 bus, but that's for talking to SunnyBoys and SunnyWebbox As I said before, run far away from Batrium if you have Sunny Islands. Poor electrical design (lack of proper EMI filtering) caused the...
  34. M

    Sunny island 6048

    TO make sure you understand, those "cell level thresholds" in your screenshots are for a 24 cell lead acid battery. You have a 16 cell LiFEPO4 battery. So it may be easier for you to just talk overall battery thresholds, and then divide by 24 to enter them in those fields. For example, if i...
  35. M

    Sunny island 6048

    The 6H is a very different beast form the 6048s we are talking about here. If money isn't an object for you I would recommend getting a REC BMS and poping the covers off those batteries to get to the cell wires. Do not consider a Batrium. Otherwise when I get time I'll try and find my notes...
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