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Kees van der Leun Sustainable2050@mastodon.energy Profile picture
@Sustainable2050
May 23 • 5 tweets • 3 min read Twitter logo Read on Twitter
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
Fast forward: will we complete the energy transition within a few decades?
Reasons to be optimistic:
1. We can build on progress in the past few decades
2. The ratcheting up mechanism of the #ParisAgreement works (photo)
3. Climate action is now widespread. E.g. @sciencetargets. Image
Kornelis ends with a big thank you to @tudelft, for being such an inspiring environment to work on the energy transition. Recommended! Image

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More from @Sustainable2050

Kees van der Leun Sustainable2050@mastodon.energy Profile picture
May 23
China is installing 12 GW of solar PV capacity per *month* now, up from last year's average of 7 GW/month!
That's around 1 million solar panels of 400 Watt each per day, weekends included.
On a per capita basis, the Netherlands has been installing even more solar PV capacity in recent years than China is doing now.
Our 4 GW/year would translate to 320 GW/year for China, while the current 12 GW/ month will "only" get it to 144 GW in a year :)
Read 11 tweets
Kees van der Leun Sustainable2050@mastodon.energy Profile picture
May 21
Another climate variable breaking way out of its normal range. This is the average sea surface temperature of the entire North Atlantic!
Taking away the sulfur sun shield of pollution by ships may have played a role (see thread).
Needless to say that this can have major consequences, on storms, precipitation, etc. Too early to call, but very risky.
Not sure how to get the magnitude of this across: 0.3⁰C above the highest temperature ever recorded, for this enormous body of water.
Anyway, for this number-oriented physicist, closely watching climate change for over 35 years, it boggles the mind.
Read 4 tweets
Kees van der Leun Sustainable2050@mastodon.energy Profile picture
Apr 30
Last month, I wrote a blog post on the need for more dispatchable power in the Dutch electricity system, for security of supply, complementing a large share of wind and solar power.
commonfutures.com/blogdispatchab…
Last week, govt published its additional climate plans for 2030. A check.
First: Dutch govt announces its new goal: fully CO2-free electricity production by 2035. That's an acceleration. Next to wind and solar (new: 3 GW offshore solar by 2030), this means that all dispatchable power will need to be zero-emission by 2035.
To achieve that, Dutch govt reserves €984 million for six yearly subsidy rounds (2025-2030), with which it hopes to incentivize owners/operators of gas-fired power plants to make those suitable for hydrogen (or ammonia). It aims for 10 GW of such conversions.
Read 18 tweets
Kees van der Leun Sustainable2050@mastodon.energy Profile picture
Apr 29
Like with climate change, biodiversity loss is a creeping process. Riding my bicycle south of Utrecht (NL) today, it's a silent spring. Hardly any lapwings (kievit), no godwits (grutto), no redshanks (tureluur), no skylarks, few swallows. All still there, just a few decades ago.
Just 10 or 15 years ago, four or five pairs of Lapwings would breed on the field next to our village. Their arrival and noisy flight displays, even at night, would mark the start of spring.
Haven't seen one on the field for years now.
Photo: @ElwinvanderKolk Image
When I was young (that's a bit longer ago ;), the Black-tailed Godwit was a common bird, even right outside the city of Utrecht, where I grew up. Calling from a post in the field, or racing through the sky.
Photo: @BoswachterJamie Image
Read 6 tweets
Kees van der Leun Sustainable2050@mastodon.energy Profile picture
Apr 29
6 pages in @nrc today on how Dutch governments led by Balkenende and current @MinPres Rutte fostered fossil fuel ties with Putin's Russia. Opening up the Netherlands to espionage, despite many warnings from the intelligence agencies.
By @tomjanmeeus Image
Detail: both Balkenende (in 2010) and Rutte (in 2012) were awarded the Rusprix, by the Russian embassy, for their "exceptional personal contribution to the development of the relations between Russia and the Netherlands".
Where German PM Schröder got a job at Gazprom after signing the Nord Stream 1 contract, Dutch Gasunie CEO Marcel Kramer was asked by Russian president Medvedev to develop Russia's South Stream project (which failed in the end). Image
Read 4 tweets
Kees van der Leun Sustainable2050@mastodon.energy Profile picture
Apr 27
38.7°C in Córdoba, Spain, today!
Highest April temperature ever recorded in Spain's main meteorological network.
[For US: that's 101.7F] Image
Hottest April day on record in Morocco too!
41.3°C in Marrakech; that's 106.3F.
Hottest April day on record in Portugal too!
36.9°C in Mora (Alentejo), beating the old record by 0.9°C.
Via @bossito@mastodon.green
publico.pt/2023/04/27/azu…
Read 6 tweets

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