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California Says Brace for Blackouts as Heat Wave Drives Record Power Use

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11–20 of 40 posts

Re: California Says Brace for Blackouts as Heat Wave Drives Record Power Use

#11
Looked like no blackouts were needed yet.[0]

> California ISO power grid peak demand hit 52,061 MW, a new all-time record. Still holding in EEA3 - no load shed. Conservation is making a difference. ow.ly/brMu50KBKHT

0. https://twitter.com/California_ISO/status/156733473761784627...

Re: California Says Brace for Blackouts as Heat Wave Drives Record Power Use

#12

Looked like no blackouts were needed yet.[0] > California ISO power grid peak demand hit 52,061 MW, a new all-time record. Still holding in EEA3 - no load shed. Conservation is making a difference. ow.ly/brMu50KBKHT 0. https://twitter.com/California_ISO/status/156733473761784627...

Anecdata: I personally know 2 people in South Bay that lost power 2 hours ago.

Re: California Says Brace for Blackouts as Heat Wave Drives Record Power Use

#13

Looked like no blackouts were needed yet.[0] > California ISO power grid peak demand hit 52,061 MW, a new all-time record. Still holding in EEA3 - no load shed. Conservation is making a difference. ow.ly/brMu50KBKHT 0. https://twitter.com/California_ISO/status/156733473761784627...

We had rolling outages in the Bay Area in Alameda at least. They did two circuits at a time instead of one too. https://twitter.com/alamedamunipwr/status/156732197303394304...

Re: California Says Brace for Blackouts as Heat Wave Drives Record Power Use

#14

I'm sure they'll have this sorted before their forced swotxh to EV goes in to effect.

The transition to BEVs may require more grid capacity, but BEVs also add a _lot_ of storage to the grid, which can reduce the impact of peak demand events. In circumstances like this, car owners can opt to discharge their batteries into the grid and be paid higher-than-normal rates for that energy.

California is already experimenting with these programs, e.g.: https://www.utilitydive.com/news/california-approves-117m-ve...

Even without vehicle-to-grid programs, electric car owners can already choose to charge later at night when the demand peak has passed (and power is cheaper).

Re: California Says Brace for Blackouts as Heat Wave Drives Record Power Use

#15
post #9

Precisely why I have a diesel generator to deliver 40kW of power to my home. I’ll turn it on if my local utility ever imposes restrictions.

I am curious if your home happens to contains a small datacenter and/or crypto mine. 40kW is a shitload of power. You could run 10 tons of HVAC and still have over 24kW remaining to play with. Which is plenty to charge 2 Teslas at the same time using 2 different Wall Connectors at maximum output and still have a few kW margin...

I'll note that 40kW is only about 53HP, not a very large engine for a car. It's approximately the power of two commercial lawn mowers.

Re: California Says Brace for Blackouts as Heat Wave Drives Record Power Use

#16
post #9

Precisely why I have a diesel generator to deliver 40kW of power to my home. I’ll turn it on if my local utility ever imposes restrictions.

I am curious if your home happens to contains a small datacenter and/or crypto mine. 40kW is a shitload of power. You could run 10 tons of HVAC and still have over 24kW remaining to play with. Which is plenty to charge 2 Teslas at the same time using 2 different Wall Connectors at maximum output and still have a few kW margin...

Yeah. 6kw-10kw are common generator size here in Australia

Re: California Says Brace for Blackouts as Heat Wave Drives Record Power Use

#17

Looked like no blackouts were needed yet.[0] > California ISO power grid peak demand hit 52,061 MW, a new all-time record. Still holding in EEA3 - no load shed. Conservation is making a difference. ow.ly/brMu50KBKHT 0. https://twitter.com/California_ISO/status/156733473761784627...

There may be no rolling blackouts needed, but at least part of that is because of the involuntary ones. There's a lot of red (>5000 people) and orange (1000-5000 people) in the current map [1]

[1] https://pgealerts.alerts.pge.com/outagecenter/

Re: California Says Brace for Blackouts as Heat Wave Drives Record Power Use

#18
post #13

Looked like no blackouts were needed yet.[0] > California ISO power grid peak demand hit 52,061 MW, a new all-time record. Still holding in EEA3 - no load shed. Conservation is making a difference. ow.ly/brMu50KBKHT 0. https://twitter.com/California_ISO/status/156733473761784627...

We had rolling outages in the Bay Area in Alameda at least. They did two circuits at a time instead of one too. https://twitter.com/alamedamunipwr/status/156732197303394304...

Unless the official CalISO twitter account is lying, this could be a local issue for specific substations etc. With the weather there could be transformers overheating and failing, for example. In a large state, power goes out _somewhere_ quite often.

The bag of tricks CalISO has to lower demand at peak is fascinating - for example, there are large consumers with significant generation resources (like emergency generators) that sign in to turn the generators on and get off the grid for a couple of hours. This produces drops in demand without blackouts per-se. Distributed power generation is generally more resilient.

Re: California Says Brace for Blackouts as Heat Wave Drives Record Power Use

#19
post #9

Earlier quoted context omitted.

I am curious if your home happens to contains a small datacenter and/or crypto mine. 40kW is a shitload of power. You could run 10 tons of HVAC and still have over 24kW remaining to play with. Which is plenty to charge 2 Teslas at the same time using 2 different Wall Connectors at maximum output and still have a few kW margin...

I'll note that 40kW is only about 53HP, not a very large engine for a car. It's approximately the power of two commercial lawn mowers.

Yes but you can't really buy generators with more than 22kw and even that is plenty to run the AC for a 5500 sq ft home with plenty of breathing room to run the electric washer/dryer

Re: California Says Brace for Blackouts as Heat Wave Drives Record Power Use

#20
post #9

Earlier quoted context omitted.

I am curious if your home happens to contains a small datacenter and/or crypto mine. 40kW is a shitload of power. You could run 10 tons of HVAC and still have over 24kW remaining to play with. Which is plenty to charge 2 Teslas at the same time using 2 different Wall Connectors at maximum output and still have a few kW margin...

I'll note that 40kW is only about 53HP, not a very large engine for a car. It's approximately the power of two commercial lawn mowers.

40KW is a shitload considering a typical central AC system uses around 5KW. Imagine running 8 in parallel.
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