applied_heat

Thanks for the link, looks like it is new development in the last 2 years which is the blink of an eye in utility timeframes.

I was under the impression that “grid forming” as opposed to “grid following” inverters were not a solved problem. Can you cite any battery plant with documented tests of energizing transmission or distribution systems?

Canadian government organizations and military also

Those are CAD

I think my grocery prices are in line with everyone else in British Columbia

I can run 10 old 100 watt light bulbs for an hour for 14 cents. Or 100 led light bulbs. I can run my hot tub full blast for an hour for $1.40. A head of lettuce is $4. A bag of coffee is $18. Five chicken breast is $20. A tank of gas for my wife’s car is $80, and for mine is over $200.

The cost of electricity for the loads I can control, such as those other heating or cooling living space, would have to 10x for it to be worth worrying about the cost, which would mean a $1400/MWH. The ceiling on the wholesale market price in ontario, last time I checked, was $2000/MWH.

I can see the price of electricity rising quite a bit across the board, but I don’t think people are going to inconvenience themselves at all to respond to it.

Will read the article now thank you

Tesla will come to the utility and say we can offer you 3000 MW of demand response in any granularity you want for $x/hr.

$x is usually not very big since the modus operandi for the bulk electric system in North America has been everyone can use as much power as they want whenever they want, so we have had lots of supply.

But a couple of times per year $x could be thousands of dollars per MW per hour, for a few hours. So not worth the effort really.

Maybe Tesla will offer the demand response more geographically so distribution utilities can also use it for peak shaving on their substations. But that is pretty brave area to be operating in for a utility, depending on Tesla to avoid overloading transformers or risk a localized black out.

There would have to be a serious penalty for bidding in the demand response but then not performing as well.

I agree it does seem far fetched at this time.

Edit: price signals to consumers is probably a better mechanism

It’s not the complexity of distributed generation that prevents it from being widespread but the cost vs. cost savings

Greed is more in style these days

I’ve seen carpet cleaners where their machine had two 120v cords that needed to be on different breakers

Telus’ insurance would have a deductible, they can’t claim for every little thing

>I don't know if there's a way to determine if they're behind the same breaker or not.

Turn the breaker off and plug something in and see if it turns on

Any source can be disconnected from the bulk electric system. If there is too much power and a generator is told to disconnect it is called a curtailment. Some contracts allow the generator to get paid for the power they could have produced but weren’t allowed to deliver due to too much supply / not enough load, so it isn’t really a good thing as the ratepayers still end up paying for the power not generated.

Dispatchable generally means you can tell the source when to generate as opposed to when not to.

Maybe 1m was the radius, this project was more than 15 years ago. The point was instead of dead batteries during cloudy times the wind complemented nicely and the batteries were charged and our load powered.

Some $300 wind turbines off Ali baba that put out 300 watts or something. It was kind of like a propeller diameter 1m mounted to a little dc motor that was mostly bearings.

We mounted it on a pile to a shed made of metal covered foam panels, the whole shed blew over. Guyed it down after that.

I’ve had good results deploying both wind and solar at remote off grid sites, when there was a week of clouds due to a storm system moving through there was quite often a lot of wind and the batteries would stay fully charged.

I used to use qiqqa for local full text search of pdf library, I think the world has moved on to mendeley, and paperless(-ng) I believe performs the same function

Victoria metrics as well, they say based on similar structures used in clickhouse

Absolutely! Prototypes are great

I think OPC-UA uses http, and there are OPC-UA servers to talk to Just about every type of device, so maybe it is already possible.

I was looking at the canvas element to do an electrical single line diagram.

I do see writing software like writing a book. I write it with the future reader in mind. It needs to be meant to be read.

I picture my colleagues or young engineers 20 years from now combing through my programs, learning the problem domain, learning the tradeoffs we made at the time and why it made sense.

If grafana supported numeric entry fields and buttons it could easily replace wonderware intouch etc.

Traditional scada systems have such brutal plotting abilities they are ripe for disruption

Victoria metrics and grafana is great. I only wish I could enter descriptions for the metrics to populate the description in the grafana metrics explorer which is traditionally done by Prometheus metric metadata “help” field.

Victoria metrics/ grafana is supplanting our industrial historian, which is admittedly not a best in class product - I am sure osi pi is better

Why not? Pipes and connections can leak? If all were installed at the same time the same way if one leaks likely others will too.

Perhaps Switching in the inverters of the EV will generate harmonics that are in the 540-1700khz AM range. Pulses of current in a wire between inverter and motor radiate fields which are then picked up by AM radio antenna. Because AM is amplitude modulation it is more susceptible to interference by a signal on the same frequency, whereas an FM station uses a band of frequencies to encode the information instead of the magnitude of a carrier. Guessing

There is some premium to be paid to choose when you get the electricity and when you decide it is a convenient time to shut down for maintenance.

If the alternative is having no lights and no industry operating the extra cost of dispatchable power pales in comparison to the losses due to blackouts.

They have gobs of hydro-electric power to start with!

Nobody wants to live in those places, we just complain that it is too expensive in San Francisco and Vancouver

The result is still available it appears to come from this page https://www.mapquest.com/travel/destinations/landmarks/place...

Maybe that page is AI generated but Google is displaying a relevant although incorrect result