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Kees van der Leun  Profile picture
@Sustainable2050
Aug 16, 2020 • 49 tweets • 15 min read • Read on X
Big wildfires burning in California heatwave; this one on the border with Nevada.
Same (Loyalton) fire
Loyalton Fire now creating tornado with wind speeds over 60 mph = 96 km/h. Via @HansKiesewetter
Four major wildfires burning in Colorado, already covering hundreds of km², and still largely uncontained. cpr.org/2020/08/15/col…
Over the past 2 days, rare summer lightning storms have sparked numerous new wildfires in N-California.
And in there ongoing heatwave, these quickly spread:
There's now so many wildfires burning in northern California that they were given group names: here's the SCU Lightning complex and the LNU lightning complex fires on Google Maps. ImageImage
The SCU Lightning Complex consists of 20(!) different wildfires with a total area of 140 km² (35,000 acres) with hardly any containment so far.
The LNU Lightning Complex consists of 5 different wildfires, covering 130 km² (32,000 acres) now, uncontained. "Extreme fire behavior" is reported.
And this is what that looks like on the ground.
For (much) more on these developments, follow Daniel Swain, @Weather_West !
Lots of smoke from California's wildfires around San Francisco and Silicon Valley today.
Lightning complex fires exploding in size:
.. and forcing many thousands of Californians to evacuate:
Smoky day in San Francisco.
State of emergency declared in California:
.. and in the state of Washington too: governor.wa.gov/news-media/ins…
Dozens of homes destroyed now by one of the LNU Lightning Complex fires. Vacaville is a city of 100,000.
California severely short on firefighting crews. The state usually relies on large numbers of prisoners, but many of them are unavailable due to a Covid-19 outbreak in a North-Californian prison.
sacbee.com/news/californi…
367 wildfires raging in California now:
Smoke from California's wildfires seen from space.
Northern California's LNU Lightning Complex wildfires grew by 170% in less than 12 hours, to 500 km². Still no containment at all.
Overview:
1,200 km² burnt in 5 days.
Why California's wildfires are so extreme right now. Good explainer, even daring to mention the c-word. Once, halfway. #endclimatesilence
Climate scientist and Californian wildfire expert Daniel @Weather_West is stunned by the size of the current wildfire explosion. 2,400 km² burnt in a week, and situation not under control. Thread.
The #LNULightningComplex fires are now 860 km² (215,000 acres), 0% contained, and 4 civilians died.
The #SCULightningComplex fires are 630 km² (157,000 acres), and only 5% contained.
The #CZULightningComplex fires are 144 km² (48,000 acres), and already required 48,000 people to evacuate.
I don't know if anyone is still keeping track on the total number of people evacuated in N-California now, but it's massive. In a way, these people are climate refugees, although they can of course hope to return home in days or weeks.
California's wildfire crisis is made worse by Covid-19:
- much less prisoners available to fight the fires, since Covid-19 was found in a prison used for their training.
- lungs under threat from wildfires and Covid-19 at the same time
- masks hard to get
One of the root causes of this wildfire explosion: extremely hot, dry air is drying out the vegetation.
One of California's ferocious wildfires seen from a fire monitoring webcam, in its final minutes.
Wildfires burning all over California. @sfchronicle's Fire Map: sfchronicle.com/projects/calif… Image
This is what evacuation can be like:
California's Governor gets it:
More than 3,000km² burnt already in California's ongoing wildfire wave.
560 new wildfires in one week: that's on average more than 3 new wildfires starting per hour, 24/7. Must drive firefighters mad
And more to come? https://t.co/Lb75ugChX1
2,500 km2 burnt just in these 3 Northern California fire complexes. Some modest progress in containing those now. https://t.co/YAzPnJYsdt
Reminder that we’ve seen more of this in 2020: https://t.co/R1ZJDrqe5N
Total area burnt in this week's California wildfires, so far: 3,670 km² (918,000 acres). The LNU and SCU Lightning Complex fires are now #2 and #4 in state history. latimes.com/california/sto… Image
That's an area larger than the Dutch province of Zuid-Holland (Rotterdam, The Hague). Image
Dangerous days ahead for California:
https://t.co/PZRnVKAVAS
An invitation from California’s Governor:
https://t.co/qvajDXBCoP
Good overview of California’s massive, ongoing wildfire crisis. Status Sunday morning. https://t.co/51gPaUlL0U
Massive evacuations for the California wildfires. This is the map for the #SCULightningComplex. Red = order, yellow = warning.
google.com/url?sa=t&sourc… Image

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More from @Sustainable2050

Kees van der Leun  Profile picture
Mar 16
Starting a week-long business & pleasure trip to Spain, by train!
Hope to be in Barcelona this evening :)
I'll keep you posted in this🧵 Image
The plan for today: Utrecht - Rotterdam - Paris - Barcelona. The tricky part is changing trains in Paris. Theoretically 2 hours should be more than enough to get from Paris-Nord to Gare de Lyon (the rail planner irresponsibly proposed 1 hour), but @Eurostar is often delayed (2/n) Image
Made it to Rotterdam, at least ;)
Bit very early, but hey, why hurry on a Saturday morning? (3/n)
Image
Image
Read 69 tweets
Kees van der Leun  Profile picture
Jan 28
Reading the Dutch "Action agenda congestion low-voltage grids".
The accelating energy transition already brings grid issues here. In the low-voltage distribution grid, the growing number of solar panels (PV), electric cars (EV) and (hybrid) heat pumps ((h)WP) is the challenge. Image
Without measures, a large and growing number of households would experience periods with too high or too low voltage (over- resp. onderspanning) or risk of grid failure. Image
Measures are categorized in:
1) accelerating grid expansion
2) more efficient use of the grid capacity
3) saving energy as much as possible.

1) already gets a lot of attention, and each of the three main DSOs plans to spend around €1 billion/year. Many hurdles though.
Read 16 tweets
Kees van der Leun  Profile picture
Nov 14, 2023
"Transition doesn't make energy cheaper, but to the contrary, significantly more expensive"
Headline in Dutch @Volkskrant yesterday, 9 days before the elections here. "Consumers and companies will pay 92% more for electricity and natural gas by 2030".
Hmm, let's look into that. Image
Firstly, as others have already pointed out too, it's a comparison between 2020 and 2030. In 2020, energy was cheap: Covid reduced demand, and Russia hadn't started its energy war and attack on Ukraine yet.
Compared with 2023, not a lot would remain of the "+92%". Image
Looking into the forecasted price increase 2020-2030 it has three components:
1. Tax (Belasting) +€5 billion. That'd be a political choice, which has little to do with the energy transition.
2. Grid (Netbeheer) +€5 billion. Increase to be expected indeed.
But ... Image
Read 17 tweets
Kees van der Leun  Profile picture
Oct 7, 2023
Today it's Scotland.
#ClimatechangeisWaterchange
Install bigger pumps. Oh, and reduce emissions to zero, asap.
Seems like the right decision.
(West of Glasgow, Scotland)
Read 4 tweets
Kees van der Leun  Profile picture
Sep 24, 2023
A problem for French nuclear power producer EDF: its total production cost (in the old power plants) is 60 €/MWh, according to the regulator, but govt forces it to sell a big chunk at 42 €/MWh.
60 €/MWh is not a bad cost in the current European electricity market, but it's also a reality check for those here who think nuclear power is practically for free after the investment in the power plant is done.
Read 4 tweets
Kees van der Leun  Profile picture
May 23, 2023
Tomorrow, @KornelisBlok's 40+ years of wide-ranging, thorough, and groundbreaking work on the energy transition will come together in his "Need for Speed" lecture. Recommended!
Time: 15:00 CEST
Link: lnkd.in/e6hbsKQc
#energytransition #tudelft
Time to tune in! Image
.@KornelisBlok's 1984 analysis of 100% renewable energy for the Netherlands! Including heat pumps and electrolysis. Image
Read 5 tweets

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