Recent content by Fisherman199

I'm not @anorlunda but I remember reading some moons ago that there were inversion technologies which solved the inertia question. Inertial signal can be essentially replicated on the grid level. That said, to my memory, I have not read in any interconnection study where this sort of technology...

On a related note, many PPAs are in dispute for off-shore wind in NY area. procurements are state-sanctioned but build-outs just aren't economical. Firms are trying to renegotiate left and right.

Jut to give a little back to the community, here's a quick run-down of what happened: A bitcoin miner is fed off a single 1200 amp breaker. Regulators have been changed to 12% regulation to handle more amperage (usually set to 5%). and the breaker TOC settings are at 720 (per phase) with a...

They are constant. This represents a range of issues but none that can't be addressed from the inclusion of relaying or reclosing.

I don't think there is either but this seems to be a source of debate. An engineer yesterday was talking about the chips of the mining rigs as if they were significant to overall transient/harmonic injection. I'm constantly surprised by how much I don't know so I didn't say anything during the...

Yes, but the machines installed that I'm concerned about have hash rates in the TH/s.

No, this is on utility scale.

There is custom hardware built/designed specifically for mining. It's the only way to get a good hash rate. Mining space is saturated (though less so now that it's banned in China). It's all very impressive but the machine are useless for anything besides mining bitcoin.

I'm referring to general consumption characteristics like harmonic injection, response to transients, etc. The question is: Can bitcoin mining load be treated as analogous to other data center loads in characteristic? I thought I'd made it clear, so my apologies.

Exactly. I don't either but this is one of the areas of confusion I hope to clear up. There's a lot of talk internally about how "different" the loads are but I can't think of a reason off hand why that would be the case. (speaking electrically) I've read sporadic reports that triplen harmonics...

I have occasion to attempt to alleviate a lot of confusion on behalf of my utility (and me). Despite a well-trained search engine I can't seem to find a white paper from another utility/IEC/IEEE that tackles this question. Does anyone here have a good source?

My concern with PG&E's hardening attempts is that it's a stunt to attract investors instead of actually hardening the system against future fires. One can't simply just bury lines and forget about them. I'm hoping this is not the intent. The last time I did a cost/benefit analysis for burying...

Hasn't everything, now? Power and associated utilities cannot be removed from political discussion. They're too closely inter-twined. A capacity market seems the only good way for Texas to continue.

I've seen this before and it's more common on Underground riser poles than overhead. No reason apart from there just not being enough overhead room for more than 3 transformers. The answer is probably as simple as one phase is feeding a separate single-phase panel close to another panel...

I did look but didn't see it within the first page. Admittedly, I only scanned. Thank you.