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Christian Breyer @christianonre.bsky.social · 47m

we miss the 1.5C target with overshoot ... and the planetary boundaries are at 1.0C (climate of the late 1980s). We better face these facts. Once a climate-neutral energy system is reached, then the next level of negative CO2 emissions is needed.

Christian Breyer @christianonre.bsky.social · 49m

"Michael Mann resigns [as Vice Provost for Climate] for 'institutional neutrality'".
Seems this is a form of censorship. Right-wing extremists call for free speech - for themselves. The US observes a crash in authors for the upcoming IPCC AR7 - another indication of censorship. Fight for democracy.

Michael E. Mann @michaelemann.bsky.social · 1h

"Penn community reflects on Michael Mann’s resignation [as Vice Provost for Climate], implications for institutional neutrality" by Norah Findley for the #DailyPenn: www.thedp.com/article/2025...

Penn community reflects on Michael Mann’s resignation, implications for institutional neutrality

Mann attributed the departure from his vice provost role to tension between his science policy advocacy work and Penn’s institutional neutrality policy. He remains a professor at Penn, and is the dire...

www.thedp.com

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Christian Breyer @christianonre.bsky.social · 1h

@ckemfert.bsky.social @solarpapst.bsky.social @martavictoria.bsky.social @petteril.bsky.social @s4f-leipzig.bsky.social

Christian Breyer @christianonre.bsky.social · 1h

15/ @siavashkhalili.bsky.social @aukehoekstra.bsky.social @mzjacobson.bsky.social @brianvad.bsky.social @nworbmot.bsky.social @paoyuoei.bsky.social @matthiasdeutsch.bsky.social @energyhuber.bsky.social @jeroahola.bsky.social @profstrachan.bsky.social @michaelsterner.bsky.social @nduic.bsky.social

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Christian Breyer @christianonre.bsky.social · 1h

14/ Listen to the Review on 100% Renewable Energy System Analyses - Technologies, Trends, and Trajectories paper in the podcast on our research results: youtu.be/Ka6lUNCenoU – this is AI-generated using Google NotebookLM.

Review on 100% Renewable Energy System Analyses - Technologies, Trends, and Trajectories

YouTube video by Christian Breyer

youtu.be

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Christian Breyer @christianonre.bsky.social · 1h

13/ Conclusions: 1067 articles on #100RE systems analyses were analysed. The research field has grown strongly in recent years. Studies increasingly cover multi-nodes, multi-sectors, transition pathways, and optimisation analyse. Europe is the by far best investigated region.

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Christian Breyer @christianonre.bsky.social · 1h

12/ The six most used energy system models are HOMER, EnergyPLAN, LUT-ESTM, Balmorel, PyPSA, and TIMES. Thereof the by far most citations receive EnergyPLAN, HOMER, and LUT-ESTM.

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Christian Breyer @christianonre.bsky.social · 1h

11/ In total, there are 479 analyses for Europe, 156 for the Americas, 81 for Southeast Asia, 80 for SAARC, 75 for Global, 73 for Africa, 62 for Northeast Asia, 33 for the Middle East, 21 for International, and 7 for Eurasia. Europe is the by far most intensive studied region.

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Christian Breyer @christianonre.bsky.social · 1h

10/ Industrial process heat is the most studied industrial segment, usually within the heat sector, often serving as a first step to include industries in analyses. Less than 10% of articles cover specific industries.

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Christian Breyer @christianonre.bsky.social · 1h

9/ Solar PV and wind power dominate power generation options, appearing in 1001 and 1002 articles respectively, together representing 94% of the database.

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Christian Breyer @christianonre.bsky.social · 1h

8/ Transition pathways are used for 23% of all #100RE systems analyses. That means that 77% of studies are overnight analyses for principle analyses of #100RE systems, however, without describing how to reach that status.

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Christian Breyer @christianonre.bsky.social · 1h

7/ Most studies (73%) used hourly resolution, followed by annual (13%). About 16% applied other temporal scopes, such as longer intervals, time slices, half-hour segments, or periods under 15 minutes.

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Christian Breyer @christianonre.bsky.social · 1h

7/ Most studies (73%) used hourly resolution, followed by annual (13%). About 16% applied other temporal scopes, such as longer intervals, time slices, half-hour segments, or periods under 15 minutes.

Christian Breyer @christianonre.bsky.social · 1h

6/ Based on nodal resolution classification, studies with 1-10 nodes rank highest (12%), followed by 11-20 (5.6%), 21-30 (4.9%), 31-40 (1.8%), 41-50 (0.8%), 51-100 (1.2%), 101-200 (1%), and >200 nodes (0.7%).

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Christian Breyer @christianonre.bsky.social · 1h

5/ From 1975-2014, key energy dimensions, such as sectors, research approaches, temporal resolution, pathway modelling, multi-node, CO₂ price, have received growing attention over time.

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Christian Breyer @christianonre.bsky.social · 1h

4/ The study covers all energy sectors: power, heat, transport, industry, desalination, and CDR. It also examines storage and networks to trace the trade of energy and energy-industry components across regions.

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Christian Breyer @christianonre.bsky.social · 1h

3/ Methods: We searched online platforms like Scopus to find #100RE systems articles with regional system analyses, enabling a systematic literature review, data extraction, and critical assessment of key findings.

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Christian Breyer @christianonre.bsky.social · 1h

2/ Context: This research adds to review research for #100RE, covering bibliometric insights ieeexplore.ieee.org/document/994... , flexibility options used doi.org/10.1016/j.rs... , island studies doi.org/10.1002/wene... , energy transition in Africa www.cell.com/joule/fullte...

Review on 100% Renewable Energy System Analyses—A Bibliometric Perspective

ieeexplore.ieee.org

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Christian Breyer @christianonre.bsky.social · 1h

1/ New research @lut.fi reviews the #100RE systems literature doi.org/10.1016/j.rs... for the full range of technologies and trends for a sustainable energy transition based on 1067 articles from 1975 to 2023.

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Christian Breyer @christianonre.bsky.social · 4h

yes. Since it is Australia it could be already build for an energy-to-power ratio of 4-6 given the status of the energy transition.

Christian Breyer @christianonre.bsky.social · 4h

carbon dioxide removal which requires energy and which could withstand with some time of lacking energy supply, thus, we also concluded that DAC is a good choice.

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Christian Breyer @christianonre.bsky.social · 4h

Podcast on Turkmenistan's Green Gambit - 100% Renewable Energy For a Sustainable Future youtu.be/n5AIIn3-Z2s for this article from 2021 doi.org/10.1109/ACCE...
@lut.fi @rasul385.bsky.social

Turkmenistan's Green Gambit - 100% Renewable Energy For a Sustainable Future

YouTube video by Christian Breyer

youtu.be

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Christian Breyer @christianonre.bsky.social · 23h

... reading the short article in the link helps. 500 MW/1000MWh - for batteries one needs two data points the capacity in either power or energy storage and then the energy-to-power ratio. Here 2 hours.

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Christian Breyer @christianonre.bsky.social · 23h

Podcast on Solar Photovoltaics For a Sustainable Transport Sector youtu.be/ZvmwTzcoaUQ for this article from 2019 doi.org/10.1002/pip....
@lut.fi @siavashkhalili.bsky.social

Solar Photovoltaics For a Sustainable Transport Sector

YouTube video by Christian Breyer

youtu.be

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Christian Breyer @christianonre.bsky.social · 1d

Potentia’s 500MW solar-plus-storage site in Australia receives NSW approval - www.energy-storage.news/potentias-50...

Potentia’s 500MW solar-plus-storage site in Australia receives NSW approval

The NSW Independent Planning Commission has granted planning approval for Potentia Energy's 500MW Tallawang solar-plus-storage project.

www.energy-storage.news

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