The ModernEncyclopedia Est. 2026 · A living curriculum · Regularly updated
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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§02

A map of the Energy Transition

Powering the world, differently

The 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 energy

Real 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.
§04

The live debates

The energy debates

Real, 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.
§05

Where to start

A route in

A route in — everything runs from the panel above.

  1. Run Orientation on the energy system, or on a specific technology (solar, nuclear, fusion).
  2. Use Great Debates on nuclear power — it splits even the experts.
  3. Connect to Climate Tech and Physics.
  4. 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.