4 X class solar flares to impact this weekend.

hwy17 · May 10, 2024

MTM98290 said:
Thanks for the clarification. Do you mean transformer in the inverter?

I was referring to utility transformer, if anything was going to receive significant space weather DC current near you it would be the high voltage lines, and it would manifest in the primary winding of your utility transformer, where it could burn out the winding.

The transformer(s) in your inverter if there are any, are not attached to long overhead wires, so my impression is there's basically no chance that they'd suffer much inducted DC power off just the wires in your walls.

MTM98290 · May 10, 2024

hwy17 said:
I was referring to utility transformer, if anything was going to receive significant space weather DC current near you it would be the high voltage lines, and it would manifest in the primary winding of your utility transformer, where it could burn out the winding.

The transformer(s) in your inverter if there are any, are not attached to long overhead wires, so my impression is there's basically no chance that they'd suffer much inducted DC power off just the wires in your walls.

I only have an off grid array to be concerned with, it seems that turning off the breaker on the array wouldn't likely help anything, or am I wrong?

The forecast is showing G3 now.

hwy17 · May 10, 2024

MTM98290 said:
I only have an off grid array to be concerned with, it seems that turning off the breaker on the array wouldn't likely help anything, or am I wrong?

The forecast is showing G3 now.

The way I understand it, and that's only from what I've read in the last 24 hours, there's basically no chance anything's gonna be damaged by solar storm induction coming in through the main breaker, open or closed.

Theoretically, for middle power level extreme events, it's possible that turning off the breaker would protect stuff.

Also theoretically, in a higher level extreme event, a breaker only gives the wires maybe a half inch gap from your system. So lightning can jump over an open breaker and maybe theoretically the largest solar storms jump the gap too even while the breaker's off.

MTM98290 · May 10, 2024

So maybe we need shutters to batten down during the extreme events. Or an automatic awning.

DIYrich · May 10, 2024

MTM98290 said:
I only have an off grid array to be concerned with, it seems that turning off the breaker on the array wouldn't likely help anything, or am I wrong?

No risk to off-grid. Wires are not long enough.

The risk is problems with long transmission lines causing power fluctuations with distribution systems. Small chance a high voltage transmission line increases voltage in distribution system which makes it to a house.

timselectric · May 10, 2024

Skypower said:
I wish I didn’t know this. I don’t like those odds.

I think the odds were great.
" NOT A KILL SHOT"

timselectric · May 10, 2024

Subdood said:
So does this mean I'll be able to see some aurora's here in north KY? If so, when, tomorrow night?

Edit: according to this NOAA space weather site, peak activity will be about 2-6AM tomorrow morning. But, probably not enough south for us.

Aurora Dashboard (Experimental) | NOAA / NWS Space Weather Prediction Center

www.swpc.noaa.gov

I'll be looking, just in case.

robby · May 10, 2024

3pm and still nothing.
I have seen small storms push the S-Meter to 8 in a matter of minutes after they hit. Right now the meter is barely registering a One on the 20 Meter Band.

hwy17 · May 10, 2024

It's peaked I guess. NOAA says they did register G4 conditions at 12 something EDT.

rancher5 · May 10, 2024

MTM98290 said:
I only have an off grid array to be concerned with, it seems that turning off the breaker on the array wouldn't likely help anything, or am I wrong?

The forecast is showing G3 now.

No, off grid, IMOP, leave it be, your system is to localized to catch energy from space.

timselectric · May 10, 2024

MTM98290 said:
Would tripping the breaker help the situation off grid? Are the short grid of a pv panel be enough to induce damaging current?

Generally if you approach or exceed 100', there's a possibility of damage.

rancher5 · May 10, 2024

hwy17 said:
It's peaked I guess. NOAA says they did register G4 conditions at 12 something EDT.

View attachment 214499

We are a little tired though.

wpns · May 10, 2024

timselectric said:
Generally if you approach or exceed 100', there's a possibility of damage.

The paper referenced a few pages ago was talking about voltages on the order of 1 to 3 V per kilometer, so your PV wires are not going to be affected.

hwy17 · May 10, 2024

rancher5 said:
We are a little tired though.

Like physically? Since I read this morning that space weather is actually associated with cardiac effects I'm wondering too lol. I would've absolutely never believed someone who made that claim, until I saw the papers on pubmed. Apparently the idea is space weather would cause some stress on the blood cells, and then as the body processes the damaged blood that could be the trigger for a cardio problem.

Not sure if my blood feels thicker right now or my coffee's just wearing off. Gonna go make another cup now before my 1pm personal cutoff.

Tulex · May 10, 2024

All I know is that I'm not putting a mask on.

MTM98290 · May 10, 2024

rancher5 said:
No, off grid, IMOP, leave it be, your system is to localized to catch energy from space.

Ill watch for a spike in output.

Rider · May 10, 2024

MTM98290 said:
https://www.swpc.noaa.gov/noaa-scales-explanation

Should I be getting the space blakets out?

Foil hat should be ok.

Tulex · May 10, 2024

hwy17 said:
Like physically? Since I read this morning that space weather is actually associated with cardiac effects I'm wondering too lol. I would've absolutely never believed someone who made that claim, until I saw the papers on pubmed. Apparently the idea is space weather would cause some stress on the blood cells, and then as the body processes the damaged blood that could be the trigger for a cardio problem.

Not sure if my blood feels thicker right now or my coffee's just wearing off. Gonna go make another cup now before my 1pm personal cutoff.

It's Friday and the work week is done. Think I will find something else to thin my blood.

timselectric · May 10, 2024

wpns said:
The paper referenced a few pages ago was talking about voltages on the order of 1 to 3 V per kilometer, so your PV wires are not going to be affected.

Correct
This event isn't strong enough to worry about.

SparkyJJO · May 10, 2024

MAJOR SOLAR EVENT!

*crickets

4 X class solar flares to impact this weekend.

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