Modelling the Nordic power system expansion with PyPSA-Eur: a comparison with the Nordic Grid Development Perspective 2025
PyPSA-Eurを用いた北欧電力システム拡大のモデリング：北欧グリッド開発展望2025との比較 (AI 翻訳)
L. R. Gorjão, H. Nygård
🤖 gxceed AI 要約
日本語
本論文は、北欧グリッド開発展望2025（NGDP）と、PyPSA-Eurを用いたコスト最適化による北欧電力システムの脱炭素化経路を比較した。風力・太陽光の拡大パターンは類似するが、水素導入のタイミングに大きな差があり、NGDPは早期導入を想定するのに対し、最適化モデルは2045-2050年まで遅らせる。著者らは、水素が戦略的不確実性であると結論づけている。
English
This paper compares the Nordic Grid Development Perspective 2025 (NGDP) with a least-cost transition pathway for the Nordic power system using PyPSA-Eur under a net-zero CO2 constraint. While wind and solar expansion patterns are similar, hydrogen deployment timing differs significantly: NGDP assumes early hydrogen use, while the model delays it to 2045-2050. The authors argue that hydrogen remains a strategic uncertainty in the Nordic transition.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本の水素戦略は早期導入を想定しているが、本論文は北欧の事例からコスト最適化のみでは早期水素導入は頑健でないと示す。日本のエネルギー計画立案においても、水素の役割とタイミングを再検討する示唆となる。
In the global GX context
This paper highlights the strategic uncertainty of hydrogen in system planning, relevant for many regions. It contrasts anticipatory planning (NGDP) with least-cost optimization, a key tension in transition finance and infrastructure planning globally.
👥 読者別の含意
🔬研究者:Provides a clear comparison between top-down planning and bottom-up cost optimization, highlighting hydrogen as a critical variable.
🏢実務担当者:Useful for energy planners and utilities to understand the uncertainty in hydrogen deployment timelines and its interaction with renewable expansion.
🏛政策担当者:Emphasizes that hydrogen policy should consider cost-optimal timing and not assume early deployment without robust industrial demand.
📄 Abstract（原文）
We compare the Nordic Grid Development Perspective 2025 (NGDP) with a least-cost transition pathway for the Nordic power system obtained with PyPSA-Eur for the period 2025-2050 under a net-zero CO2 constraint. The model co-optimises generation, storage, and transmission expansion with hourly system operation while constraining the Nordic generation mix to remain consistent with NGDP milestone ranges. Overall, the optimised capacity pathways reproduce the broad NGDP expansion of wind and solar power, with Denmark emerging as the main locus of offshore wind and solar deployment, Finland as a major site for onshore wind expansion, and Norway and Sweden relying more strongly on existing hydropower and nuclear capacity. The main discrepancy between the two pathways does not lie in the broad buildout of variable renewables, but in the timing and role of hydrogen. Whereas the NGDP treats hydrogen as an early and steadily increasing component of industrial demand and system development already from 2030, PyPSA-Eur delays substantial hydrogen deployment until 2045-2050, when it becomes costeffective primarily as a flexibility and seasonal storage option in a strongly variable-renewable-energy-dominated system. This contrast suggests that early hydrogen build-out in the Nordics is not a robust outcome of cost optimisation alone, but depends strongly on assumptions regarding industrial demand growth, sector coupling, and anticipatory infrastructure planning. We therefore argue that hydrogen remains the principal strategic uncertainty in the Nordic transition, with the NGDP representing a more anticipatory planning perspective and PyPSA-Eur a more conservative least-cost timing of deployment.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.1109/eem68581.2026.11589650first seen 2026-07-13 06:41:30
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