Have recently replaced deep cycle lead acid battery bank with commercially made
LiFeP04 bank. Am concerned about possibility of BMS being damaged by
geomagnetic storm or EMP.
Have shielded replacement charge controller and inverter. Haven’t figured out yet how to protect BMS in battery bank.
Any thoughts about how to deal with this possibility? Thanks
Batteries are small, NON-MAGNETIC BASED, and CME/EMP has zero effect on them.
While BoobTube 'Experts' pump doom and gloom, there are a few facts they never quite get a grasp on...
The biggest being the electro-magnetic link.
EMP/CME will only SERIOUSLY have effect on LONG RUNS OF WIRE.
Think waves running along side wires, creating electro-magnetic induction. MOVING magnetic field along the wire creates a current, that current exceeds the capacity of control systems like breakers, transformers, etc, and the grid crashes.
You don't have a 'Grid' big enough for minor events to effect. If you were close enough to the event source, in the case of an EMP, they ONLY way to produce an EMP of any size/strength is a thermonuclear explosion.
If your small wiring exposure, and you, are close enough to 'Ground Zero to be effected, you are dead anyway...
The BS about all computer chips being fried, all vehicle wiring being fried is science fiction.
Your vehicle alternator and starter put out WAY more magnetic field than some distant EMP. There is a non-ground metal body around your vehicle electronics, basically a Faraday cage, and your alternator & starter are INSIDE that cage with your electronics...
I have two sources of actual experience here, the first being I was involved with all the problems that happened when digital fuel injection first came out... That was a crap show because the bean counters wanted to run very low voltage sensor wires in bundles with PULSING, high amperage, and high voltage DC wires.
This put those very small reference voltage wires in side by side contact with high voltage (ignition) and high current (alternator, starter, blower motor) wires. The On/Off switching of DC motors creates and collapses magnetic fields in their wiring, which basically EMP/induced the crap out of those low voltage, continous voltage sensor wires...
Then there were the 'Surge' effects that sudden loading/unloading the starter motor caused, the surge when the alternator kicked in charging, all sorts of issues.
Then in the military I was assigned to security at the EMP research/magnetics lab doing work for the U.S. Military.
Actual, HUGE EMPs produced (localized) and the researchers protected their common lap top computers with...
Are you ready for this... Drum roll please...
Refridigator magnets.
Turns out a transient magnetic field (EMP) won't pass through a static magnetic field. They literally used the magnetic advertisements from the food joints.
An adhesive version was stuck on sensor cables, sensors, etc. They bought it by the sheet/roll from the same people making it for the advertiser printers and just cut it to the shape they needed.
Solar panels are receptive to LIGHT, charged particles, not magnetic fields. So again, science over fiction.
I suggest metal conduit on wires, or metal wrapped wiring, and magnetic sheeting on inverters/charge controllers.
If you are modular, instead of combined box unit, you saved enough DIY/modular to afford spare parts. DISCONNECTED components are not effected. No long wiring runs for the transient magnetic fields to work on/induce current.
Think an EMP through... Soms country would have to have a ballistic missle program, a space program capable of finding the major magnetic lay lines in the magnetosphere, be able to launch and detonate a HIGH ORDER thermonuclear device in those lay lines...
That's a LOT of capability! Not likely any random group can put that together, and a state that could knows they will be wiped off the map within an hour of doing so...
As for CME/Carrington Event... again I have to stress LONG POWER WIRE LINES. The telegraph used STEEL wires, highly ferrous (magnetic) wires, so they were especially effected.
A CME WILL HAPPEN AGAIN. 100% probability since our star's chemestry is prone to these events. No question it WILL happen again.
There is a reason to BURY conduit for long wiring runs... Mother earth is your friend here.
DC coupling/copper wire will also be your friend, its VERY difficult to surge a loaded DC cable. It CAN be done, but with earth shielding, its own magnetic field when under load, the effects are diminished.
I just don't worry about EMP, the probability is so low it's almost non-existant.
CME WILL happen, but it's the time frame, will I be here when it does happen? I somewhat took it into consideration, but I didn't directly harden much of anything.
