@JohanEmpa@mastodon.green
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JohanEmpa

@JohanEmpa@mastodon.green

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JohanEmpa, to random
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SSAB plan to reduce CO2 emissions with ~90 % around 2030. That's more than 8 million tonnes. Sweden's total emissions can reduce by around 10 % and Finland's by around 7 %.

They're doing this 15 years earlier than originally planned.

Source: Their annual report 2022, page 21.

JohanEmpa, to sailing
@JohanEmpa@mastodon.green avatar

This ship 😍

JohanEmpa,
@JohanEmpa@mastodon.green avatar

A cool thing with those sails is that they are like airplane wings and can be rotated 360°.

Don't know exactly how those sails work, but they may be able to sail pretty much however they want no matter where the wind comes from? 🤔

Here's the website
https://www.ariane.group/en/news/ariane-6-cargo-ship-canopee-spreads-its-wings/

jon, to random
@jon@gruene.social avatar

Spain, you can fuck the hell right off

You’ve built a massive new Congress centre on the edge of Santiago with a MASSIVE car park

Not a single bike stand

And the policeman then won’t let me chain a bike to a post, claiming “security”

Err what’s in the boot of that car over there?

😡

JohanEmpa,
@JohanEmpa@mastodon.green avatar

@jon He could possibly have meant the security/safety of the wheelchair trying to pass your bike.

fj, to random
@fj@mastodon.social avatar

I'm very excited about 's hard sails. The vessel will be transporting to the Kourou launchpad.

The semi-rigid hard sails are expected to provide a 30%-50% fuel reduction depending on the wind direction. This has huge potential to reduce emissions of maritime transport.

Engine powered off, the ship sailed at 9.4 knots at a 50° wind bearing with a 19 knots wind, which is quite impressive.

https://www.lemonde.fr/sciences/article/2023/10/13/un-navire-avec-des-ailes-pour-transporter-ariane-6-sur-l-ocean_6194097_1650684.html

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JohanEmpa,
@JohanEmpa@mastodon.green avatar

@simon_brooke @AlfNoProblem @fj There are other options. I hear ammonia is the most promising. That can be made from H2 from renewable energy. Less ideal is to make it from H2 from natural gas with CCS. Methanol is another option.

JohanEmpa,
@JohanEmpa@mastodon.green avatar

@simon_brooke @AlfNoProblem @fj I'm not saying that we should use natural gas, just that it's possible. It's better than heavy fuel oil, but not good enough if we want to fix climate change.

If sails doesn't work for all ships everywhere, and they don't, liquid fuel made from green hydrogen may be the only viable solution.

JohanEmpa, to australia
@JohanEmpa@mastodon.green avatar

Just saw that some trucks in Australia drive two 800 km round trips per day with a total weight of 175 ton in one of the directions.

I believe a regular 40 ton truck can be modified with 1-2 extra fuel cells and five more H2 storage bottles and that will cover it.

Am I right?
(1/2)
https://www.youtube.com/watch?v=nmzfmn898J0

jackofalltrades, to climate
@jackofalltrades@mas.to avatar

Take a look at this graph. It compares total annual CO₂ emissions of all high-income countries with emissions of the rest of the world.

The story here seems clear: high-income countries are reducing their emissions, but the rate of that reduction is way too slow and in practice gets erased by the emissions growth in developing nations.

#ClimateChange #ClimateJustice #ClimateCrisis

JohanEmpa,
@JohanEmpa@mastodon.green avatar

@jackofalltrades It will drop sharply soon. China has said they will peak 2030 and there are lots of big projects in Europe coming to fruition around that time.

JohanEmpa,
@JohanEmpa@mastodon.green avatar

@jackofalltrades What's seven years when the process started 30 years ago. Developing the technology and laws took decades. It will probably take another 20-30 years for the CO2 to reach nearly zero in the EU.

Everything is falling in place now. The whole transport sector for example. EU have banned fossil cars from 2035. After that people can choose electric or bicycle. After 12 years the average car is electric. Just in time for net-zero 2050. China is on a similar path with net-zero 2060.

JohanEmpa,
@JohanEmpa@mastodon.green avatar

@pvonhellermannn It's both. It's falling in place in the EU and China. They are likely to be net-zero according to plan. That will be a massive reduction in global emissions.

Meanwhile other regions are lagging behind. That comes with a non-zero risk of human extinction down the line.

Luckily the hard part is to invent and mass produce the renewable technology, and to come up with laws.

Other regions can catch up by copying the laws and buying the systems and products from EU and China.

JohanEmpa,
@JohanEmpa@mastodon.green avatar

@jackofalltrades You ask and I reply with a thread of examples as it so much big stuff happening:
• Sweden has more than a million tonne rare earth metals. Next to a steel mine. They've been preparing the new mine for years.
• SSAB Hybrit will switch to green steel, it will cut the whole country's emissions with 10 % and Finlands with 7 %
• They're building 20-70 TWh renewable energy to make H2 for the steel industry, with enough storage
(1/5)
@icanbob

JohanEmpa,
@JohanEmpa@mastodon.green avatar

• A company in Stockholm will pump down ~800 000 ton negative emissions yearly in Norway. It will offset ~half of fossil cars in the capital
• Oslo doing similar CCS, but not negative.
• Other towns are probably going to do the same
• Norway Longship is building the offshore infrastructure for CCS
(2/5)

JohanEmpa,
@JohanEmpa@mastodon.green avatar

• Denmark energy island + hydrogen island
• Netherlands+Belgium connecting their offshore wind to Denmark, Germany, Dogger bank etc
• TenneT, 2 GW transmission standard
• Germany shutting down coal by 2030 and 2038
(3/5)

JohanEmpa,
@JohanEmpa@mastodon.green avatar

• Volvo Trucks, full range of electric trucks, H2-truck after 2025.
• Poland makes electric Urbino buses
• Cellcentric, 150 kW H2 fuel cell, 50 % owned by Volvo, probably slots right into all Volvo's 'construction equipment' (Tractors, excavators etc)
• Mass production of EVs ramping up to 2035 (Swedish new mine ready by then)
• About 40 giga-battery factories in the EU
(4/5)

JohanEmpa,
@JohanEmpa@mastodon.green avatar

• Laws: CBAM is new, EU ETS is the big old law still going strong. EU green deal, fit for 55, new aviation law etc.
• Germany has a new law for heat [pumps] in buildings

What's this? (5/5) it was six posts 😂 (5/6)

JohanEmpa,
@JohanEmpa@mastodon.green avatar

• Berlin 3 TWh renewable electric energy stored in water for district heating
• Hamburg doing something similar

This sounds like a solid way of handling daily fluctuations in renewable energy in the winter.

(6/6)

JohanEmpa,
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@jackofalltrades
LKAB is part of the Hybrit project. They have 80 % of all iron ore in the EU. Them exporting green iron-pellets could have a big impact.

The EU ETS and CBAM is the EU-wide and industry-wide legislation that forces emissions down by continuously increasing the cost of CO2 emissions.

@pvonhellermannn

JohanEmpa, to Hydrogen
@JohanEmpa@mastodon.green avatar

This is a H2 fuel cell. They put two of these hydrogen fuel cells inside a regular Volvo truck.

1000 km range, up to 65 ton vehicle, fill the tank with green H2 in 15 minutes.

A truck with two TEU containers.

JohanEmpa,
@JohanEmpa@mastodon.green avatar

It's made by Cellcentric. A joint venture of Daimler Truck AG and the Volvo Group.

They have an animation and some images on how it works here.

https://cellcentric.net/en/technology/

JohanEmpa,
@JohanEmpa@mastodon.green avatar

I shared this image yesterday of the TEN-T corridors. The fuel cell trucks will be able to drive in this network by 2030. All over the EU.

It's a major achievement of the EU and European companies to create both this green H2 ready network and the trucks to drive on it.

JohanEmpa,
@JohanEmpa@mastodon.green avatar

@gevoel yeah, maybe, but after seeing this fuel cell I believe it has a place in addition to battery electric trucks. If they can save weight and time on long distance routes it could win over batteries.

JohanEmpa,
@JohanEmpa@mastodon.green avatar

@gevoel He says that fuel cells will be a thing for long distance routes (5:22), and that's exactly what Volvo is saying too. I guess cost factors will decide at what distance it makes sense to choose H2 over batteries.

JohanEmpa,
@JohanEmpa@mastodon.green avatar

@dimi
Sounds about right

Those road trains are fascinating. 200 ton. Do you know how far they drive between fuel stops, or how much distance they cover per 24 hours?
@gevoel

JohanEmpa,
@JohanEmpa@mastodon.green avatar

@dimi @gevoel Interesting. It's mentioned that the truck moves ~24 hours on that route. Two drivers.

JohanEmpa, to Hydrogen
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There are lots of hydrogen fuel stations in western Europe.

JohanEmpa,
@JohanEmpa@mastodon.green avatar

@FelixWerker The EU plan for 42 % green hydrogen in the industry by 2030, and 60 % by 2035. EU plan to produce 10 million ton green H2 by 2030 and import as much. With that trajectory a fair share of long distance heavy-duty transport will also become green by 2050. With some blue and pink H2 in the 2030s and 40s. Price expected to drop below 6 €/kg.

@Hypx

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