June 28, 2026

Grid drama goes fully open-source

EU Open Sources Ten-Year Network Development Planning Tools

Europe put its power-planning playbook online and the comments instantly turned chaotic

TLDR: The EU has released an in-progress tool meant to make long-term electricity planning more transparent and easier for outsiders to examine. Commenters split fast: some called it a smart step for cleaner, better-connected power, while others warned it could expose sensitive infrastructure info.

The European Union has quietly done something that sounds boring until you read the replies: it put online the software behind part of its long-term electricity grid planning. In plain English, it’s trying to make the tools for deciding future power lines and energy connections more open, more checkable, and less locked inside institutional black boxes. The project is still very much unfinished — the repository itself warns it’s not feature-complete — but the pitch is clear: more transparency, more public participation, and fewer mysteries around how Europe plans its power future.

But the real electricity was in the comments. One crowd was cheering the move as a rare “why don’t we do more of this?” moment, with people arguing that Europe’s energy future depends on countries sharing power smartly across borders. That’s where the optimism came in: when British wind drops, French nuclear can help, and a better-connected grid could squeeze more value out of clean energy. Then came the doom-posting. One commenter basically screamed “gift-wrapped map for Russian drone planners”, turning a transparency story into a national security panic. Another just dropped a dead-simple “Yikes”, which somehow said everything. And in classic internet fashion, someone got distracted by the hosting choice and grumbled that the EU had posted it on a giant US platform. So yes: one open-source energy project, and the crowd instantly spun up debates about efficiency, sovereignty, security, and whether Europe can ever post anything without starting a geopolitical comment war.

Key Points

  • Open-TYNDP is an open model dataset and workflow developed by Open Energy Transition and ENTSO-E to explore use of PyPSA in the Ten-Year Network Development Plan.
  • The project is built on PyPSA-Eur and is intended to complement existing TYNDP tools, especially for scenario building and cost-benefit analysis.
  • Its stated goals include increasing transparency, improving reproducibility, and lowering barriers to stakeholder participation in European energy planning.
  • The current phase focuses on replicating key figures from the 2024 TYNDP cycle before aligning the toolchain with the 2026 TYNDP cycle.
  • The repository is under active development, not yet feature-complete, contains partial 2024 cycle data, and has ongoing validation and documentation work.

Hottest takes

"On the biggest US platform" — 12345ieee
"What’s the point of (open-sourcing) this?" — qprofyeh
"a great present for Russians planning their drone attacks on Europe" — cynicalsecurity
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