How this page evolved

Every published version is kept. Each entry shows what changed and why. Earlier versions can be restored by moderators, but only if the material they rely on is still available.

1. Revision 3Oct 4, 2026, 4:03 PMLiveAI-organised, reviewed

   Added two new sources on power-system governance and power-to-hydrogen economics, plus a simulation study on combined cooling, heating and power optimisation. New evidence on incentive effects, the battery-cost threshold for unsubsidised power-to-hydrogen, and the gap between adopted policies and the 1.5 °C pathway. Added guidance on incentives, storage cost thresholds and policy sequencing; expanded uncertainty on simulation-only results and the policy-instrument gap.

   • · The main finding was rewritten.
   • · Updated “Electricity, industry and hydrogen”.
   • · Added section “Policy, markets and the pace of transition”.
   • · Updated “What this means for choosing a strategy”.
   • · 4 new sources cited.
   • · The note on uncertainty changed.
   • · The key takeaways were revised.
   • · 2 new pieces of guidance for specific situations.
   • · 1 new open question.
2. Revision 2Sep 30, 2026, 8:16 PMAI-organised, reviewed

   AI-prepared Starting Map from live research.

   • · First published version.