I have sat with a cup of coffee and watched the charge controllers as the sun rose. (Yeah, I don't have a life). Pre-dawn, the charge controllers begin to react at around 12V above system voltage. Even at 0.1 amps they begin to draw down the PV voltage.?♂️
I have had a 7s 23p li-ion (about 55ah) connected to my lfp batteries for about 18 months. Of course, it has it's own 20a bms and is fused. No ill effects thus far.
Rough calculation: Worst case, your system uses around 1100 wh per day. 2- 300 watt panels that are vertical (not covered with snow), should take care of that during Dec-Jan. In my mind, that would be the most reliable, and cheapest solution. Generators run out of fuel, or wont start due to the...
I don't claim to fully understand the depth of this study. The number of times 'estimate' and other words are used in that section makes me doubt the certainty.
Is it reasonable to assume a great deal of this has to do with transmission line upgrades? Wildfires and rolling blackouts spurred public outcry.
I know factually, a 10' stick of Unistrut cost me $22 in 2021 and last week was $38. And that is just steel pricing.
With the exception of your misunderstanding of a brief mention of the li-ion, all of my comments have been on topic. I am sure I'm on the right thread.
I agree it would be better to use a separate panel, but...
I am currently using the panel as a single phase with the clips for the third leg removed. I have considered this since I installed it. My thought was to use two legs for my AIMS 6500 and the third leg for a smaller 2-3Kw inverter to...
I haven't seen any SSRs controlled by ac. They may exist. Isolating one leg of a 240v circuit will kill it ( a deep well pump runs fine on 2 wires), but it may not be legal or "safe".
I like this. Having a similar thought, I designed a load optimization system some time ago that works on the a/c side of things. When my system reaches a preset voltage, the microcontroller can energize circuits in the ac panel. I have had the electric water heater connected this way for about...
I expect that building is/was condemned and is the primary source of your problems. I still hold it is highly unusual to require a permit to repair and existing system, but you did ask for permission. Hopefully a learning experience.
Yes.
Voltage is the rating of the insulation not the conductor. The current your meter draws should be in the milliamps range. As long as the meter can handle the voltage that should be fine.
This is the essence of my WAG (wild ass guess). The Honda is made to parallel with another inverter/generator, so no inverter/generator made to parallel is ever the (master) until it is the first one locked onto frequency. This is my experience with two Yamaha 2000i. They have to be connected...
Assuming some degree of handiness: For warmth, If it were an immediate survival issue, I would get an electric blanket, a UPS from Best Buy (or other), 2- 12vdeep cycle batteries, 10 ga wire, crimp terminals, and crimpers from NAPA. All of this could be locally sourced today.
sequester in the...
Yes, sometimes it right in front of you, yet you instinctively follow the herd. This is incredibly effective against educated "specialists".
But more likely in your case it is a Milgram experiment in real time. As the renowned Anthony Fauci said "I am the science!"
Do you know the reasoning behind this? I once had a Blue Sky system jump from 12v to 24v on its own in an RV. Many magical pixies flew away. I always suspected the DC and AC systems got into a tiff over ground.
The clamp meter and weather station have some inefficiencies, I'm sure. That is the data I gathered, along with my original post.
(on edit: the turbine is not turning and clamp meter still shows .98A. Not sure if it's the meter or the rectifier?)
I didn't intend to hijack the thread with my frankensystem. I have been mixing them for about 18 months without issue. But I also ride a motorcycle 90mph between lanes of rush hour traffic, so there's that.
Back to the question at hand, the paper linked above states "long-term" floating is the...
I (think I remember) reading a white paper published in 03/22 that showed a net gain in longevity on LPF with microcycling below 4%. Are you familiar with this?
We haven't even broached the pole flip yet! The poles and field strength are changing exponential faster. CMEs will be our reintroduction to the stone age.
The US has satellite systems in place that monitor space weather in real-time. You could access historical data to see if there were any events near that date.
SuspiciousObservers uploads daily and would also have historic info.
A few years ago I was browsing Battery Hookup for some 18650s. Some how the got their hands on a dozen or so New 480v 3 phase inverters. I think about 25kw. Wrong customer base. They were selling them for $1200 ea.
So what happens to the batteries once they are fully charged for the day? Are they disconnected from the system until there is not enough sunlight to maintain load and thus only cycled once per day? Or something else?