HOR-7 · Tech Horizons · Living entry
Learn Energy Transition with any AI
Rewiring the world
The energy transition is the shift from fossil fuels to low-carbon power — arguably the defining engineering, economic and political challenge of the century. It spans hard physics, brutal economics, and geopolitical trade-offs with no painless options.
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HOR-7 · Energy Transition
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A map of the Energy Transition
Powering the world, differentlyThe technologies in play.
- Solar, wind & storage — the fast-growing core of the transition.
- Fusion — the long-promised prize of limitless clean power.
- Advanced fission & small modular reactors — nuclear, reconsidered.
- Hydrogen — a possible clean fuel for the hard-to-electrify parts.
- Smart grids — the intelligent networks to tie it together.
- Carbon capture & removal — dealing with emissions we can't yet avoid.
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The canon
The science and economics of energyReal foundations.
- Svante Arrhenius (1896) — first calculated how CO₂ warms the planet.
- The physics of fission and fusion — the power in the atom, for good and ill.
- The solar and wind revolution — decades of engineering that made them cheap.
- The learning curve — the economic law by which technologies get cheaper as we build more; solar is the great example.
- The grid — the vast machine that has to be rebuilt for a renewable world.
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The live debates
The energy debatesReal, genuinely divisive questions.
- Nuclear: essential or a dangerous distraction? A real, deep split among serious energy experts.
- Can renewables plus storage do it alone? Or do we need firm, always-on power too?
- Fusion — is it finally close, or always "thirty years away"?
- Carbon capture. A vital tool, or a fossil-industry excuse to keep going?
- Green growth vs degrowth. Whether prosperity can keep rising as we decarbonise.
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Where to start
A route inA route in — everything runs from the panel above.
- Run Orientation on the energy system, or on a specific technology (solar, nuclear, fusion).
- Use Great Debates on nuclear power — it splits even the experts.
- Connect to Climate Tech and Physics.
- Turn on web search and run The Frontier for the latest.
There are no free lunches here — every option has a cost. The subject is learning to weigh them honestly.