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  • Post in thread: Sol-Ark's Comment on EG4 18k-PV-12-LV

    Sorry but SolArk is not the same tier as the long established high end players like Outback, Schneider yet. Maybe in another 5-10 years.
  • Post in thread: Seems MPP dropped a new inverter...a split phase 10KW

    Why should you care about back end supplier issues when it's sold as "EG4" inverters? Do you accept your Tesla not working properly if they chalk it up to a supplier problem out of their control?
  • Post in thread: Does anyone know of a ChatGPT/LLM integration with forums?

    😂😂😂
  • Post in thread: UTILIZING GRID TIE INVERTER OFF GRID - $100 REWARD FOR SOLUTION

    Of course there are people running grid-tied inverters off grid but as some have explained they use a hybrid inverter and batteries as the grid forming inverter to activate and more importantly curtail/disable grid-tied inverter power via frequency shifting as needed. The hybrid inverter and...
  • Post in thread: EG4 LifePower4 no UL Label - Failed Inspection

    UL9540A is a part of the UL9450 standards for ESS. UL9540A is a test method/report for thermal run away performance of ESS including its BMS, cells, etc. UL9450A does not get the battery cell a "listed" mark. Only stand-alone products can get "listed" in general.
  • Post in thread: EG4 6500 EX Under an Oscilloscope

    Review tests should definitely include a significant but common non-linear appliance load like a microwave oven. Especially for HF split-phase inverters the test will show performance and power quality with phase imbalance. Many inverters have good power quality with no load but degrade...
  • Post in thread: Enphase Zero Grid Export Help

    Getting an iQ Envoy and use a zero export profile is likely your cheapest option.
  • Post in thread: EG4 6500 EX Under an Oscilloscope

    A common issue with these rebranded inverters is little or non-existent QA. The customers are the QA department.
  • Post in thread: PV Switch

    Don't see why installer wouldn't do it if it's done in a local code compliant manner.
  • Post in thread: LED flicker BAD with Solark inverter

    It's a common symptom of poor/slow inverter voltage regulation response to non-linear loads. Adding inductors with capacitor to the LED circuits can help. But it might be cheaper/easier to change the LED's.
  • Post in thread: Grid tie DIY battery backup

    First, Encharge and most other home battery systems do not guarantee no device/computer reset whenever the grid goes down. It may happen depending on the where the AC power cycle is when the grid goes down but it's not guaranteed. It's an inherent limitation of all line-interactive backup...
  • Post in thread: Easiest solution to provide generator "boost" for HVAC peak inrush

    Why not just add another generator in parallel? It would be simpler and cheaper than adding a battery/inverter system.
  • Post in thread: Cheapest energy monitor for two channels?

    It's better in terms of the actual metering HW and open source SW. It's capable of higher accuracy than Vue and not limited to cloud only monitoring. Vue uses a microcontroller for signal sampling at lower resolution and sampling frequency. Vue bundle is certainly cheaper at high number of...
  • Post in thread: UTILIZING GRID TIE INVERTER OFF GRID - $100 REWARD FOR SOLUTION

    The short answer is no. It wouldn't work in the DC case either when you have a current source that will raise voltage as high as it needs to push power.
  • Post in thread: Sol-Ark's Comment on EG4 18k-PV-12-LV

    The incremental improvements are certainly valued. Just not 300% markup.
  • Post in thread: DEYE Inverter UL Listed available in US

    Tesla Powerwalll maybe similar in the sense that it can't start up with drained batteries even if there is solar. However, Tesla is probably different in that it won't allow charging drained batteries from a generator. I don't think Sol-Ark or any other hybrid inverters have such restriction.
  • Post in thread: DEYE Inverter UL Listed available in US

    Really? Why would they have docs with instructions for setup in the US? https://www.deyeinverter.com/deyeinverter/2020/12/29/502012022%E3%80%90a%E3%80%91%E5%82%A8%E8%83%BD%E5%8D%95%E7%9B%B8%E8%AF%B4%E6%98%8E%E4%B9%A6sun-5-8k-sg01lp1-useu-ver2.0-deye.pdf
  • Post in thread: Extremely overheated BMS, fused Breaker and dead Inverter. What could be the root cause?

    The inverter FET's likely shorted first causing over current. But that doesn't excuse the failure of the breaker and BMS to cut off the battery.
  • Post in thread: Sol-Ark 12K + Enphase IQ8 microinverters

    Once a profile has been successfully installed it's stored in the Envoy. If you have installer access to Envoy then you can reapply the profile at any time without Internet connectivity.
  • Post in thread: UTILIZING GRID TIE INVERTER OFF GRID - $100 REWARD FOR SOLUTION

    And still no major explosion yet :cool:
  • Post in thread: Have you had a Sol-Ark Failure?

    Is this a typical vacuum requiring ~1000W power running off 2 SolArk 12K's?
  • Post in thread: Enphase IQ8+ AC coupled to Dual Schneider Conext XW Pro - No PV when off grid

    Good thing Enphase came to their senses. It's likely that telling affected customers to buy their batteries just pissed off the customers and didn't increase battery sales much.
  • Post in thread: DIY solar divert to EVSE

    The new LCD looks good. The assembly is pretty easy especially for experienced DIY. The officially supported local control interface is much less brittle than a reverse engineered interface without official support for any long term system.
  • Post in thread: UTILIZING GRID TIE INVERTER OFF GRID - $100 REWARD FOR SOLUTION

    It's 50Hz only so unlikely to activate the 60Hz grid-tied inverter. Need something 60Hz and bigger for a good firework show :cool:
  • Post in thread: DEYE Inverter UL Listed available in US

    Doubt it, see p32 for California only config settings. Unless there is another California outside of US.
  • Post in thread: Adding large capacity battery backup to newly installed grid-tie solar system in lieu of generator?

    iQ8 is certainly faster but not that relevant to the AC coupling issues being discussed. The main AC coupling issue in an island grid with iQ8's is the lack of full initial sync and power ramp up with the grid-forming inverter (GFI). It happens well before there is excess power beyond the load...
  • Post in thread: EcoFlow Delta Pro Ultra

    Hard to see how they are generally practical. The reviews never show how you actually move and lift one of these for indoor setup in the dark during outages. The marketing often shows them already setup sitting in a large empty kitchen. I doubt most people can just leave one sitting in a kitchen.
  • Post in thread: UTILIZING GRID TIE INVERTER OFF GRID - $100 REWARD FOR SOLUTION

    For a Prius, it's a long solved problem. This solution has been available for years https://www.plugoutpower.com/
  • Post in thread: New Lux Power LXP-LB-US 12k / GSL-H-12KLV-US with 200A AC Passthrough Current (US Market)

    I agree it's current delivery limited but I think it's very much due to some fundamental differences between LF and HF architectures. Specifically, I think the issue is that balanced dynamic current sharing through the components in the inverter power chain is more difficult in the HF...
  • Post in thread: Which brand 2000W pure sine wave inverter is better for microwave oven?

    Samlex is in a different class. Not just better quality components but also more robust design and honest power ratings.
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