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Dr Jan Rosenow Profile picture
@janrosenow
Jun 29 • 12 tweets • 6 min read Twitter logo Read on Twitter
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Beer made with heat pumps is becoming a thing.

Yes, that's right - a 🧵 on the electrification of beer brewing.
1/ First up: @hepworthsbeer partnered with @futraheat & @energygovuk to install and trial their heat pump prototype at the brewery.

It recovers low grade waste heat and boosts it up to 150°C reducing fossil fuel use by up to 90%.

https://t.co/EET7fRweuOcoolingpost.com/uk-news/uk-fun…
2/ Next is @Feldschloss1876 - they make 250 million bottles and cans of beer in Rheinfelden, Switzerland.

A heat pump makes this process more efficient and reduces the company's annual CO2 emissions by 275 tonnes.

https://t.co/zxd4kQoHFsenergieschweiz.ch/stories/waerme…
3/ Sinebrychoff in Finland is the oldest brewery in the Nordic countries and has been labelled Finland's most energy-efficient brewery. Heat recovered from the brewing process through heat pumps now supplies around 26% of the plant’s annual heating needs.

https://t.co/pcMkRzPKUXecopal.fi/en/industry-an…
4/ @Heineken working with @Eneco is about to install a 4 MW heat pump in the village of Zoeterwoude, the site of the largest brewery in the European Union.

https://t.co/CAv96F5ipeeneco.com/wat-we-doen/kl…
5/ Ayinger Brewery in Germany uses a heat pump in the bottle cleaning process reducing energy and water consumption of this process by almost 90%.

https://t.co/pGxve7CX7Kenergie-experten.org/projekte/braue…
6/ Across the pond in the US @newbelgiumbeer partnered with @AtmosZeroSteam to introduce a 650 kW heat pump system at New Belgium Brewing’s headquarters facility in Colorado.

insidehook.com/daily_brief/fo…
@newbelgiumbeer @AtmosZeroSteam 7/ In Austria people heat with waste heat from beer brewing.

Brewing beer releases lots of heat.

In this example 800 homes near the are heated using waste heat upcycled by a heat pump.

https://t.co/wQx27XFtvYbrauwelt.com/en/topics/ferm…
8/ Over in Australia @3ravensbrewery Melbourne’s Oldest Independent Brewery is fitting a heat pump to capture waste heat from the brewing process reducing their energy consumption by over 70 per cent.

https://t.co/bdHaOgutJ3foodanddrinkbusiness.com.au/news/3-ravens-…
@3ravensbrewery 9/ Austrian brewery @Mohrenbrauerei which has installed a 370 kW heat pump including a heat storage unit.

The heat pump saves the burning of
1.8 GWh/a of fossil fuels and had a payback period of less than 6 years.

https://t.co/3kP3Gt4Oy4sintef.no/globalassets/s…
10/ Dutch @Gulpener brewery installed a 650 kW heat pump in the new brewhouse, which saves 75% energy compared to the old brewhouse.

https://t.co/dGRfSAQU4Sentreemagazine.nl/ondernemen/gul…
Please share more examples you can find. I'd love to extend the list!

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More from @janrosenow

Dr Jan Rosenow Profile picture
May 25
Fossil gas is a dead-end road.

For a long time, gas has been seen as a bridge from coal on the road to net-zero.

Not anymore. A hard-hitting report from the prestigious European Academies of Science @EASACnews makes the case to phase out fossil gas for good.

🧵 Image
1/ Fossil gas in the EU produced an estimated 729 million tonnes of CO2. That is about a quarter of the CO2 emissions from the EU’s energy sector.

Without replacing fossil gas with decarbonised energy sources the EU cannot meet its climate goals. Image
2/ In the EU, natural gas is mainly used in three sectors: buildings (for heating), electricity (for power generation), and industry (for process heating and as a feedstock for chemical processes).
Read 15 tweets
Dr Jan Rosenow Profile picture
May 24
Who are the top sustainability influencers? Here's a list for you if you want to follow them.

🧵
1: @ProfMarkMaslin
2: @BoscoloRoberta
4: @ErikSolheim
5: @KateEBrandt
6: @mvollmer1
7: @adamelman
8: @_HannahRitchie
10: @NeikeCedrik
11: @FollowAlisonT
12: @jrockstrom
14: @hausfath
15: @Gwenaelle_huet
16: @KetanJ0
17: @supplychnqueen
18: @fbirol
19: @GlobalEcoGuy
20: @PaulPolman
21: @antgrasso
23: @DrSimEvans
24: @MLiebreich
25: @BrendanFWallace
26: @TijnTjoelker
27: @AliJSheridan
28: @bmay
29: @sallyeaves
31: @James_BG
32: @robertjgardner
35: @MafaldaDuarte
36: @HansLak
37: @MichaelEMann
38: @LionHirth
39: @CFigueres
Read 4 tweets
Dr Jan Rosenow Profile picture
May 14
Heat pumps reduce gas even if they use electricity from 100% gas.

But @RossjournoClark claims "If you burn gas to generate power, then transmit that power to home with heat pump, you start with a lot less energy than you do if you use the gas in a gas boiler".

🧵 why he's wrong Image
@RossjournoClark 1/ Professor Sir David MacKay said this already in 2008: "Heat pumps are superior in efficiency to condensing boilers, even if the heat pumps are powered by electricity from a power station burning natural gas." withouthotair.com Image
2) It's really quite simple maths.

A heat pump with SCOP 3 uses 1 unit of electricity to make 3 units of heat.

Burning 1 unit of gas in a power plant at 48.3% average efficiency minus ~8% line losses results in 1.3 units of heat from a heat pump.
Read 7 tweets
Dr Jan Rosenow Profile picture
May 13
Another poor piece on heat pumps in the @Telegraph this time by @RossjournoClark using the @BritishGas heat pump performance guarantee as a hook to spread misinformation.

The article is riddled with errors and myths. Let me take them on one by one.

🧵 Image
1/ Article claims "you can’t find an engineer prepared to install one of the devices in your home because, in all honesty, they know it wouldn’t actually keep you warm."

The reality is that most people who had a heat pump installed are MORE comfortable.
2/ The article claims that the 8 million solid wall homes in the UK are hard to bring up to required insulation standards.

Heat pumps work well even in modestly insulated homes even without solid wall insulation. My own home is a good example of that.

Read 10 tweets
Dr Jan Rosenow Profile picture
Apr 26
Die Bild-Zeitung berichtet, Wärmepumpen seien nicht klimafreundlicher als eine Gasheizung.

Das ist jedoch vollkommener Unsinn. Wärmepumpen sparen zwischen 57% und 68% an Treibhausgasen ein auf 20 Jahre gerechnet.

Hier erkläre ich warum. 🧵 Image
1/ Laut @dena_news-Gebäudereport 2023 werden in Deutschland im Jahr 566 TWh in Wohngegebäuden zum Heizen und zur Warmwasserbereitung verwandt.

dena.de/newsroom/publi…
2/ Das sind pro Haushalt ca. 14.000 kWh bei knapp 41 Millionen Haushalten. Nehmen wir eine Heizungseffizienz von 85% an, ist das eine bereitgestellte Wärmemenge von 11.762 kWh.

destatis.de/DE/Themen/Gese…
Read 16 tweets
Dr Jan Rosenow Profile picture
Apr 25
There's a lot of negativity around energy lately.

One area where Europe has achieved a lot already is cleaning up its electricity.

In 2021, electricity was 45% less carbon intensive than in 1990.

Data from @EUEnvironment eea.europa.eu/ims/greenhouse…

🧵 Image
1/ Carbon emissions are down in all countries.

The highest rates of decarbonisation in electricity production over the 1990-2021 period were recorded in Luxembourg (84% decrease), Denmark (81%), Malta (80%) and Slovakia (76%).

Where emissions remain high this is due to coal. Image
2/ Recent trends are encouraging with record levels of generation from wind and solar.
Read 4 tweets

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