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After Moss Landing Power Plant reignites, officials brace for more flare-ups

simonw

If you haven't heard of Moss Landing before it's one of the most underrated spots in all of California: it has California's largest population of sea otters living in in https://en.m.wikipedia.org/wiki/Elkhorn_Slough and you can rent kayaks and head out to visit them. We use https://kayakconnection.com/

(The rules are that you can't paddle within 60 feet of an otter, and if one comes closer than that you need to stay still until they leave. The otters will quite happily pop up from nowhere right next to your boat.)

I'm deeply worried about the impact of the fires on the wildlife there.

My favorite restaurant in Moss Landing is currently closed: https://www.hauteenchilada.com/

"It is with profound sadness that we announce the immediate closure of The Haute Enchilada Café & Gallery. The fire incidents and thermal runaway caused by an explosion at the nearby Moss Landing battery storage facility on January 16 and February 18 of this year have introduced safety and environmental concerns that are insurmountable for us as the fires continue to burn."

poobear22

Also, its a great place for bicycle rides on quiet roads. Great air (when there are no fires). Nearby horseback riding on Salinas Sunset Beach. Don't forget to have artichokes!

bradgessler

There’s a small Marina there where you can hire boats to go whale watching in Monterey Bay. Highly recommend doing that if you live in the area.

JKCalhoun

> My favorite restaurant in Moss Landing is currently closed

As long as Phil's Fish Market is still there.

hedora

I was going to recommend the Whole Enchilada (same owners, down the street), but it closed recently. It was always packed. I wonder what happened.

Hopefully the business makes it through this crisis.

krupan

The problem with energy is that it's, well, energetic. It doesn't matter if it's green clean solar or nasty fossil fuels or highly debated nuclear energy, there are big risks of the energy production and storage getting out of our control and causing big problems. It's incredibly unfortunate that energy has become such an emotional and political topic. I think we could do a lot better at being innovative and safe (both short-term and long-term) if we could be more cold and calculated about energy production and storage.

AJ007

Imagine if that area had to be strip mined, factories set up, and coal power plants built. There's nothing clean or green about renewable energy. Californians and Westerners in general should be thankful they just have to deal with things like battery fires and not the raw material extraction and solar panel production, because that's what is happening in other countries instead.

And no I'm not trolling, this sort of whitewashing out the ugly parts have contributed a lot of damage and waste from things like "recyclable plastic" which weren't actually recyclable, but everyone felt good it in a green bin next to grease soaked pizza boxes that weren't recyclable either.

skyyler

>and not the raw material extraction and solar panel production

I see stuff like this often and it always leaves me wondering. Does equipment for coal power generation fall from the sky?

Raw materials need to be extracted for coal power plants too, right?

mistrial9

ask the armed guards with bullet-proof vests arriving in PG&E trucks? (seen yesterday at a nearby construction site)

perihelions

- "EPA onsite coordinator Eric Sandusky said officials have been conducting real-time air monitoring, tracking air quality and hydrogen fluoride levels."

Hydrogen fluoride? That's incredibly toxic stuff. Surprised it's allowed to build something this hazardous, in California of all places.

Why would they choose a fluorine battery chemistry for a power plant when there are many alternatives?

russdill

It is toxic, but fortunately has a rather short half life compared to many other environmental toxins.

Other than burning lithium ion battery plants, the other major source is burning coal.

s1artibartfast

Fluorine is in every lithium ion battery.

0_____0

More info: https://www.nature.com/articles/s41598-017-09784-z

Edit to add: > The electrolyte in a lithium-ion battery is flammable and generally contains lithium hexafluorophosphate (LiPF6) or other Li-salts containing fluorine.

MostlyStable

The article is short on details, but I'm curious if this is a direct result of the first fire (something got damaged that led to this one maybe?) or a situation where the same faulty engineering/bad equipment led to another fire?

I assume that the battery plant hadn't restarted operation after the first fire yet since I can't imagine that repairs had completed.

rsynnott

> The Moss Landing Power Plant is a natural gas powered electricity generation plant as well as a battery energy storage facility

I feel like it's at least mildly weird to actually _colocate_ these. Like, it makes sense that they would be _close_, but probably not right beside each other.

0cf8612b2e1e

My understanding is that get the electrical interconnections can be more difficult than the actual plant construction. Building adjacent to existing generation means those connections already exist. Same reason that supposedly solar and wind are being built up on old coal plants.

rsynnott

Sure, it's beneficial to be adjacent, but you can have a decent _gap_ without much trouble.

toast0

It doesn't seem unreasonable to me if it's a demand response generator (peaker)...

If demand is low, charge batteries. If demand is high, drain batteries. If demand is higher than batteries can sustain, run gas. If there's a subsidy for putting battery electric power on the grid, when batteries are low and demand is also low, run gas to charge batteries locally and then supply that to the grid later to get the subsidy.

Only the last part requires colocation, but it's probably easier to get one power plant parcel zoned and one power plant hooked up to the grid, and having both energy storage and a gas peaker together might bring it up the connection prioritization list because it addresses multiple problems for grid operation.

christina97

A peaker gas plant basically fulfills the same function as a grid battery.

The grid is built to have a peaker plant there, and it’s operated by a company that bids for generation at this location and has experience in it.

I think it more than makes sense.

wolfram74

This is a thing I've been curious about lately, how close do they have to be? 100 meters? 50 meters? 10? Grid tie ins at a certain point get way beyond my V=IR and V^2/R=W intuitions.

Given the length of the interconnect queue these days, I'm assuming a lot of industrial/large power draw systems will start to just colocate with enough pv+wind+storage to have a local grid with a very small if any connection to the exterior grid.

Obviously it's a cost, but it's one less action item on the set up process and one less possible area for delay, there will be cases where the cost pencils out.

umeshunni

I assume the purpose is to store the excess generated power for high demand times.

rsynnott

Oh, sure, but you could do that while allowing a safe distance. You do want it _close_ for ease of interconnection, but a safety gap should be feasible (for instance, offshore wind sometimes has a shore battery installation, but it's generally on the shore, not actually out with the turbines.)

rtkwe

That's probably for the cost of building a battery platform and also the actual tie in to the wider grid will be on land anyways so you're still building it close to the tie in point, the generation is just lightly distributed due to the nature of offshore wind.

renewiltord

Could you pass environmental review on a new site? Besides, putting it anywhere else would ruin that place’s community and cause gentrification.

itishappy

How do batteries cause gentrification?

renewiltord

It’s a very complex and nuanced issue. The literature is replete with examples. And there is even a famous adage that references them: power corrupts.

rtkwe

We really need to figure out a way to reliably extinguish Lithium fires or at least have a way and a place to transport them to so they can be contained until we can be sure they're not going to spontaneously reignite like these did. It's kind of wild to me that they seem to have just left the burnt batteries in place.

SoftTalker

Isn't the big problem with extinguishing them that they supply their own oxygen?

We need a different battery chemistry.

rtkwe

Or a method of cooling them down reliably. They have to get hot enough to liberate the oxygen from the salts and to ignite the electrolytes. Maybe something that could aggressively bind to the electrolyte that makes it more difficult to burn could also work? Chemistry was never my best subject though.

Syonyk

They're an absolute pain in the rear to deal with, because they're self igniting, and it propagates between cells.

Your typical lithium 18650 - vape cell, old laptop cell, whatever you know it as (18mm diameter, 65mm length, cylindrical), has a high end capacity of around 3500mAh - so 3.5Ah (amp-hours - so will take an hour to drain at 3.5 amps, 3.5 hours to drain at 1 amp, handwave goes here). At 3.7V nominal, that's around 13 Wh (watt-hours, a measure of energy capacity).

As a first order handwave, when a cell runs away and burns off all the materials in it (electrolyte, plastic separators, etc), you'll get about twice the energy out of the cell as the electrical capacity - so, ballpark, 25Wh for a fully charged 18650 running away. Except, it doesn't run away in an hour. It runs away in about 30 seconds, so doing the math on that, you end up with about 3000 watts for those 30 seconds. That, meanwhile, can heat nearby cells up enough to cause them to enter thermal runaway, and the whole pack will just go, until cooled sufficiently.

"Dumping a lot of water on the pack" will, generally, cool it down enough to stop this. Assuming you can get the water where it needs to be, and in something like a shipping container battery, that's far from given.

At this point, you've got a damaged battery, in unknown condition, with none of the existing current paths able to be relied on, and probably new current paths that may or may not exist yet (water, metal, corrosion, and those paths are often high resistance and slow to form, which creates a lot of heat). It's not really safe to disassemble it or work on it until things have been discharged, because if the pack has energy left in it, it's prone to do exactly what this article talks about - reignite, later, inconveniently.

As far as disassembling it, would you go work in a few megawatt-hours of energy, in unknown configuration, with the state of the safety systems unknown, in a charred environment of unknown toxins (what you get out of a runaway is far from predictable, beyond "generally unfriendly to humans")?

It sounds silly, but if the pack is confined and the fire isn't going to spread to other packs nearby (which is why they tend to be quite spread out), the safest thing to do really is to let it burn to completion. At that point, if it's actually burned out, there's no energy left in the cells to do anything terribly nasty, and you've burned off most of the electrolyte and such.

Anyway, the right answer is lithium iron phosphate for grid scale energy storage, but even those can catch fire if water gets in the wrong places, and they will, with enough prodding, burn.

WD-42

I’m all for alternative energy but Vistra really needs to take their R&D back to Texas.

MrMcCall

Seeing as lithium is a powerful "mood stabilizer and antidepressant" (per wikipedia), I am curious how awful inhaling its smoke is for human beings?

I'm sure it existing in combination with other elements changes its bioavailability (as opposed its practically non-existent elemental form), but for better or worse?

mapt

What nobody talks about is that much of the lithium electrolyte in lithium ion batteries is in the chemical form of lithium hexafluorophosphate (LiPF6).

Burning produces nontrivial amounts of hydrogen fluoride and clouds of hydrofluoric acid. In the short term, these are horrifically toxic (reactive). They'll bond with just about anything, including etching glass. The impact on living tissue is nightmarish and unlike some other strong acids, protracted because it absorbs rapidly through skin and starts substituting things in your biochemistry.

There are also a variety of other excitingly unstable fluorinated compounds floating around.

I have a suspicion that at some point we're going to stop talking about "Hey it's a fire that won't go out, we have to use too much water, our tanker trucks aren't equipped for this" and start talking about "Hey it's a fire that boils off what is very nearly a chemical weapon. Evacuate a mile downwind and let it burn". And then we're going to ban the more fire-prone chemistries in stationary and vehicular applications. What event is going to trigger that? I think the most likely thing is a mass casualty event in a deep tunnel traffic jam where the pileup ends up igniting.

Obligatory reading: https://www.science.org/content/blog-post/things-i-won-t-tou...

And on this specific threat: https://www.nature.com/articles/s41598-017-09784-z

rsynnott

It _may_ become irrelevant before that happens; the less-explode-y chemistries seem to be winning the war at the moment, particularly for non-weight-sensitive applications like storage (the incredible exploding power plant in the article used NMC cells, but I think that would be rather surprising for a new installation today, say).

MrMcCall

This why HN is sometimes so valuable. Thanks, friend.

voidUpdate

The bipolar treatment is generally Lithium Carbonate. The product of burning lithium is Lithium Oxide. I doubt it has the same effects on a person when inhaled

gus_massa

Lithium Oxide reacts with water and you get two Lithium Hydroxide, so when it reach a mucous membrane it will split intermediately into Li+ and HO- and nobody will remember they were together.

Lithium Carbonate is very soluble, so once it reach a mucous membrane it will dissolve, split in two Li+ and one CO3= and nobody will remember they were together.

So in both cases you get intermediately Li+ so I expect no differences in the bioavailability. (IANAMD. Don't try this at home)

But there is an important difference:

Lithium Oxide one is too alkaline and so I guess that inhaling it is like inhaling quicklime power and you may get a huge irritation. If there are firefighter, rain or other sources of water you will get Lithium Hidroxide that is like hydrated lime that is not as bad.

Lithium Carbonate is only slightly alkaline (like anti acid pills) so I guess that inhaling it is like inhaling limestone power that is not a good idea but is no terrible.

phyzome

Bear in mind that lithium has some unpleasant side effects. So if you don't need it, it's... not great.

matkoniecz

It seems unlikely that it is inhaled, especially its burned form, when used as "mood stabilizer and antidepressant"

serviceberry

I don't know why you're being downvoted, it's a reasonable question. The lithium cation is the bioactive part and the smoke will produce it when the particles are dissolved in water.

But the basic answer is that lithium is fairly ubiquitous in the environment and it has biological effects only at fairly substantial doses. I think the usual therapeutic dose is above one gram of lithium carbonate per day.

The most likely product here is lithium hydroxide, which is caustic. The smoke also contains more dangerous substances such as carbon monoxide and hydrogen cyanide from burning plastic. So, I'd wager you'd be dead or seriously injured long before you feel any cognitive effects.

Lithium also doesn't bioaccumulate, so any small amount that gets in your body will be cleared fairly quickly - probably within a day or two.

In essence, I'd stay clear of the smoke, but not because of the mood-related effects.

MrMcCall

Thanks, that's a fantastic, informative response.

> I don't know why you're being downvoted, it's a reasonable question.

No to the high-karma stupid, especially because their stupidity is growing more glaringly obvious by the day, and that makes them angry instead of leading them to reevalute their ignorance.

"Same as it ever was." --Talking Heads

nancyminusone

You don't hear too many stories of people lighting lithium batteries on fire intentionally and inhaling the results (compare with nitrous, paint fumes, air duster, etc.), so I'm guessing there's not much there.

tahoeskibum

[flagged]

floatrock

The battery packs are Tesla Megapacks, as was celebrated when the facility opened in 2022

https://investor.pgecorp.com/news-events/press-releases/pres...

If politics played a role, it's the convenient omission of this in the linked article while the owner/operator company was named.

[edit]: Nope, I'm wrong per reply below. There is a 2022 Tesla array at Moss Landing, but apparently the one that caught fire was an older 2020 array with LG batteries. Read the article below instead, the chemistry and designs for large battery arrays changed a lot in those years, and looks like we're seeing "safety standards are written in blood" play out live here.

martinpw

Unless the fire spread to them, it seems the batteries that burned were not from Tesla but from a different provider at the same site

https://www.canarymedia.com/articles/energy-storage/moss-lan...

Vistra used batteries manufactured by Korea's LG (not Tesla batteries, as some news reports incorrectly claimed; a separate Tesla battery array sits next door).

notwhereyouare

musk turned anti-CA. but also, if you read the article, the plant is owned by a company in texas.

>Vistra Corp, the Texas-based company that owns and operates the facility,

MrMcCall

[flagged]

BurningFrog

CA Assemblywoman Lorena Gonzales turned Musk anti-CA:

https://www.sfgate.com/tech/article/Tesla-move-Lorena-Gonzal...

yardie

Here we are 4 years later, and I would say a lot of people would agree with her. LOL.

dragonwriter

I'm pretty sure CA enforcement of its anti-discrimination laws had a much bigger impact than any tweet.

s1artibartfast

That's fairly reductive. CA and Musk had a long falling out throughout COVID cemented by the acquisition of Twitter, firing of the staff, and advertising boycott