First off, I'm sorry for your loss; this looks obviously expensive.
A few points:
- A few people brought up the breakers. Although not the root cause here, AC breakers don't work in DC environments. It's not a matter of over-current protection, an AC breaker will trip if overloaded with DC...
It looks likely that the panels have been connected to the MPPT inputs with even distribution. 8 on the first, 8 on the second. Your roof has 3 panels on one facing and 13 on the other - crucially with different orientations. This is breaking design rules:
1. All panels connected in series...
Final update: It's resolved, but the HOW is amazing...
I have been watching my daily operations with diligent scrutiny, while resisting the urge to intervene and change setpoints. After day's worth of observation, this problem of imbalance wasn't actually resolved, and crept back into...
I have an external whole-house AC transfer switch and all loads on a sub-panel, so I don't use the sliding bypass block-off plates the PDPs come with. This is what a fairly populated full-PDP looks like.
There's a caveat to the charge window you'll figure out. It doesn't work like an enable/disable, but rather as a window during which hitting the "Recharge Voltage" is ignored or not. The charger will still run the entire course of your charging cycle even if the window is exceeded...
A few factors to consider related to outages:
- Outages are more likely during bad weather where PV isn't productive.
- In an emergency, your power consumption metrics won't look like the daily usual because you'll be in an emergency conservation mindset and only powering just the essentials -...
Sizing one of these out, there are a few limits to stay within and be aware of.
(Note that the following specifications are only for the Schneider MPPT 100 600, as the 80 Amp model has the same MPPT Voltages but lower current limits.)
- PV Array MPPT Voltage Range: 195-510 Volts. Use the...
When wiring the panels in series you can take Voc (Open Circuit Voltage) of the panel rating and multiply it by the number of panels to get a maximum string voltage, and then add a safety margin of 5-10%. (That margin varies depending on climate and installation orientation. It comes from the...
I can give you some background on the mode of operation of an MPPT.
Maximum Power Point Trackers utilize the voltage vs. current output curve characteristics of the PV array to regulate their output to the battery.
A PV specification label provides details from which a power output curve can be...
Does urinating into a swimming pool raise its level? Technically, "yes", but...
The range of a car most effectively be extended by lowering its weight and/or drag. I would bet money that dropping the suspension 1", adding 5psi to each tire, and replacing the side mirrors with cameras (which...
Thank you! Upgraded to Build 41 of v1.18 yesterday and for the first time in an Insight upgrade ever, it didn't default my network settings. XW Pro v2.10 is still mentioned in the release notes.
As of last night, the Super-Capacitors are up and running preliminarily, and I already have some amazing observations. This pack is x24 of Nesscap 3500F 2.7V super capacitors. Total capacity works out to 145 Farads at a maximum of 64.8V, and that's enough safety margin for my 62.4V FLA...
Any time the chargers are active the inverter will be in Pass-Through mode, and that's why setting 3-stage charging on them is not a default or recommended configuration - it will just float the batteries and never go into Grid-Support mode.
I also run XW Pros in a self-consumption zero-sell...
Recently a bank of 24 Nesscap 3500F Supercapacitors was added to my system to assist with DC ripple and surge loads. Although a big investment, their performance and the preservation of battery longevity they provide is worth it, in my opinion. These capacitors will easily pass 1500 Amps and...
There is a more potential for efficiency making rectified and regulated DC. Utilizing AC directly from the windings of an alternator (erroneously called a "generator" in the consumer market) required a constant RPM to maintain the frequency, regardless of load. Making DC you can bring RPM, and...
I might use this thing maybe 5 times in the rest of my life. I have no intention of needing to shut down the DC bus, but if I do need to disconnect the capacitors for any reason, I need to be able to do it safely. It doesn't need a PWM controller or any complexity, it just needs to be ready to...
PDP or Mini PDP isn't needed, but the functionality it provides would need to be accommodated by other components. Inverter and MPPT DC Breakers, DC busbars, AC breakers for the inverter input and output.
The Mini PDP comes with the AC breakers for input/output/bypass and a 250A DC breaker for...
As JoeHam mentioned, custom battery type is what you'll have to use. Just typing as I think here, I come up with a few things to be cognizant of:
- Lead Acid can be recharged in a less-regulated manner than LiFePO4 because there is a more pronounced voltage rise as state of charge in the pack...
Pulled the trigger on x24 2.7V 3500F Nesscap supercapacitors. Will be building a custom box or something to hold them, and connecting to PDP DC bus through a 250A Schneider breaker, and a charge/discharge resistor circuit. Should be here the third week of September. Will report back.
One problem here is that there is a "bundle" price that is lower than if the individual parts were purchased separately. It isn't possible to break down the individual item costs that shipped because it's one single cost to the consumer. That also means it's not easily possible to refund you...
A few items:
I think that this is too many devices for the single XANBUS on an Insight Home. You're going to need Insight Facility for this because it's got 2 XANBUS networks. I'd probably put the MPPTs and Disconnect RSs on one, the 2 XW Pros, AGS, and BattMon on the other.
A characteristic...
Apologies to OP for the tangent, but this discussion is very cool!
I have a passionate regard for Nikola Tesla. I'd call him a true genius "inventor", as he worked out entire functional systems of everything in his head, he knew when they'd work, all before he ever put pen to paper about it...
This might help with some of the voltage setpoints. It's a slide I pulled from one of Schneider's videos that explains the points at which the XW Pro changes modes internally. The LBCO+1.0V is not a clearly documented setpoint, for example, and you cannot see it or change it but it is there.
Edit: thinking about this more, you might run into a problem with MPPT, assuming the MPPT function can be disabled in favor of a hard-set voltage, where the "PV" input voltage from the DC converter might not adequate at 48V. I saw you mention the 32-95V input spec of the MPPT, but generally the...
I'm posting an explanation of my methodology and what I've done to finally resolve this problem.
With Inverter 2 behaving erratically, I figured getting a clear picture of exactly what functionality is affected would be a necessary prerequisite to opening a trouble ticket if I was to go that...
A lot of the time blocks that now exist in the XW Pro weren't added until later firmware, and without personal experience on the earlier XWs I can presume that those time block settings are missing from those. For example, it is possible to set a time Export Block in XW Pro which I'd guess you...
....digging up another post from a while back...
The XWs won't take any more than they're rated to handle through the internal relays, just like they self-limit on AC1.
That generator appears to have different output maximums for gas (18.75A) versus propane (17.81A).
Assuming gasoline, I...