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← A hybrid-electric airliner ends up heavier and more complex than the…
17 connected korrents · 16 moments from 3 Nov 2008 to 14 Sept 2026.
Everything filed under aviation
aviation
Everything filed under batteries
batteries
Everything filed under climate change
climate change
Everything filed under electric vehicles
electric vehicles
Everything filed under energy
energy
Everything filed under solar
solar Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Read this korrent: A hybrid-electric airliner ends up heavier and more complex than the aircraft it replaces and delivers no fuel saving at all. A hybrid-electric airliner ends up heavier and more complex than the aircraft it replaces and delivers no fuel saving at all. Last stated 6 years ago
2 Apr 2021
BF
Bjorn Fehrm — holds since 2021-04-02 — tap for who they are
Same subject: AI's energy use is an easier end-use to decarbonize than aviation. — tap to centre the map on it AI's energy use is an easier end-use to decarbonize than aviation. Last stated 3 months ago
5 Aug 2026
ZH
Zeke Hausfather — holds since 2026-08-05 — tap for who they are
Same subject: Airplanes are already almost as energy-efficient as they could possibly be, so no redesign will radically improve their efficiency. — tap to centre the map on it Airplanes are already almost as energy-efficient as they could possibly be, so no redesign will radically improve their efficiency. Last stated 18 years ago
3 Nov 2008
DM
David MacKay — holds since 2008-11-03 — tap for who they are
Same subject: Electrification transfers badly from cars to aircraft, because a car engine is under 10% efficient while a modern aero engine is already 30 to 40%. — tap to centre the map on it Electrification transfers badly from cars to aircraft, because a car engine is under 10% efficient while a modern aero engine is already 30 to 40%. Last stated 5 years ago
28 Jan 2022
BF
Bjorn Fehrm — holds since 2022-01-28 — tap for who they are
Same subject: A small, highly aerodynamic aircraft can beat an airliner on fuel per passenger mile, because drag reduction gets harder as the fuselage grows. — tap to centre the map on it A small, highly aerodynamic aircraft can beat an airliner on fuel per passenger mile, because drag reduction gets harder as the fuselage grows. Last stated 5 years ago
by 25 Oct 2021
AV
Austin Vernon — holds since 2021-10-25 — tap for who they are
Same subject: A hybrid is a poor machine because it carries two complete powertrains, and most e-bikes repeat the same mistake. — tap to centre the map on it A hybrid is a poor machine because it carries two complete powertrains, and most e-bikes repeat the same mistake. Last stated 5 years ago
by 9 Nov 2021
AV
Austin Vernon — holds since 2021-11-09 — tap for who they are
Same subject: Cutting drag is worth far more in an electric vehicle than in a combustion one, because carrying the energy is so much more expensive. — tap to centre the map on it Cutting drag is worth far more in an electric vehicle than in a combustion one, because carrying the energy is so much more expensive. Last stated 4 years ago
by 19 Sept 2022
AV
Austin Vernon — holds since 2022-09-19 — tap for who they are
Same subject: Sustainable aviation fuel cannot be scaled to the size of the fleet, because its feedstock competes with growing food. — tap to centre the map on it Sustainable aviation fuel cannot be scaled to the size of the fleet, because its feedstock competes with growing food. Last stated 6 years ago
2 Apr 2021
BF
Bjorn Fehrm — holds since 2021-04-02 — tap for who they are
Same subject: Battery-electric airliners do not work even on optimistic assumptions, and the arithmetic said so before anyone built one. — tap to centre the map on it Battery-electric airliners do not work even on optimistic assumptions, and the arithmetic said so before anyone built one. Last stated 6 years ago
2 Apr 2021
BF
Bjorn Fehrm — holds since 2021-04-02 — tap for who they are
Same subject: A Mars base is not a backup plan for climate change or nuclear war, because self-sufficiency there is centuries away. — tap to centre the map on it A Mars base is not a backup plan for climate change or nuclear war, because self-sufficiency there is centuries away. Last stated 2 years ago
22 Dec 2024
AF
Adam Frank — holds since 2024-12-22 — tap for who they are
Same subject: A regional climate extreme set during an ecological disaster is not evidence that the whole country or planet was hotter — tap to centre the map on it A regional climate extreme set during an ecological disaster is not evidence that the whole country or planet was hotter Last stated 3 months ago
22 Jul 2026
ZH
Zeke Hausfather — holds since 2026-07-22 — tap for who they are
Same subject: A warming climate and retreating glaciers are raising the risk of Himalayan ice-and-rock collapses regardless of whether any single event can be attributed to it. — tap to centre the map on it A warming climate and retreating glaciers are raising the risk of Himalayan ice-and-rock collapses regardless of whether any single event can be attributed to it. Last stated 2 months ago
28 Aug 2026
ZH
Zeke Hausfather — holds since 2026-08-28 — tap for who they are
Same subject: China scaled solar and batteries when America refused to because the CCP got scared of climate change. — tap to centre the map on it China scaled solar and batteries when America refused to because the CCP got scared of climate change. Last stated a month ago
14 Sept 2026
NS
Noah Smith — holds since 2026-09-14 — tap for who they are
Same subject: A data centre powered by solar and batteries alone needs an array so oversized that the design is not worth building. — tap to centre the map on it A data centre powered by solar and batteries alone needs an array so oversized that the design is not worth building. Last stated 3 years ago
18 Apr 2024
AV
Austin Vernon — holds since 2024-04-18 — tap for who they are
Same subject: A solar panel is a manufactured object that produces wealth rather than consuming it, at a hundred times the rate of the best farmland. — tap to centre the map on it A solar panel is a manufactured object that produces wealth rather than consuming it, at a hundred times the rate of the best farmland. Last stated 2 years ago
9 Nov 2024
CH
Casey Handmer — holds since 2024-11-09 — tap for who they are
Same subject: About a fifth of the US grid could be freed for data centres just by covering the yearly peak with batteries or peaker plants. — tap to centre the map on it About a fifth of the US grid could be freed for data centres just by covering the yearly peak with batteries or peaker plants. Last stated 7 months ago
13 Mar 2026
DP
Dylan Patel — holds since 2026-03-13 — tap for who they are
Same subject: Apple's risk is being reduced to hardware: people keep buying the best phone while everything they do on it comes from someone else's model. — tap to centre the map on it Apple's risk is being reduced to hardware: people keep buying the best phone while everything they do on it comes from someone else's model. Last stated a year ago
2 Sept 2025
BE
Benedict Evans — holds since 2025-09-02 — tap for who they are
Same subject: Chinese solar panels and batteries are cheap because of automation and a honed supply chain, not because of cheap labour. — tap to centre the map on it Chinese solar panels and batteries are cheap because of automation and a honed supply chain, not because of cheap labour. Last stated a year ago
15 May 2025
HR
Hannah Ritchie — holds since 2025-05-15 — tap for who they are
At the centre
A hybrid-electric airliner ends up heavier and more complex than the aircraft it replaces and delivers no fuel saving at all.
Holds Read this korrent →
AI's energy use is an easier end-use to decarbonize than aviation.
Holds
Airplanes are already almost as energy-efficient as they could possibly be, so no redesign will radically improve their efficiency.
Holds
Electrification transfers badly from cars to aircraft, because a car engine is under 10% efficient while a modern aero engine is already 30 to 40%.
Holds
A small, highly aerodynamic aircraft can beat an airliner on fuel per passenger mile, because drag reduction gets harder as the fuselage grows.
Holds
A hybrid is a poor machine because it carries two complete powertrains, and most e-bikes repeat the same mistake.
Holds
Cutting drag is worth far more in an electric vehicle than in a combustion one, because carrying the energy is so much more expensive.
Holds
Sustainable aviation fuel cannot be scaled to the size of the fleet, because its feedstock competes with growing food.
Holds
Battery-electric airliners do not work even on optimistic assumptions, and the arithmetic said so before anyone built one.
Holds
A Mars base is not a backup plan for climate change or nuclear war, because self-sufficiency there is centuries away.
Holds
A regional climate extreme set during an ecological disaster is not evidence that the whole country or planet was hotter
Holds
A warming climate and retreating glaciers are raising the risk of Himalayan ice-and-rock collapses regardless of whether any single event can be attributed to it.
Holds
China scaled solar and batteries when America refused to because the CCP got scared of climate change.
Holds
A data centre powered by solar and batteries alone needs an array so oversized that the design is not worth building.
Holds
A solar panel is a manufactured object that produces wealth rather than consuming it, at a hundred times the rate of the best farmland.
Holds
About a fifth of the US grid could be freed for data centres just by covering the yearly peak with batteries or peaker plants.
Holds
Apple's risk is being reduced to hardware: people keep buying the best phone while everything they do on it comes from someone else's model.
Holds
Chinese solar panels and batteries are cheap because of automation and a honed supply chain, not because of cheap labour.
Holds