This is an interesting and thought-provoking article about renewable energy. It reminds us that while the transition is complex and full of challenges, there is still a great deal we can learn. Progress won’t be simple or instant — but it is something we can face together, with cooperation, honesty, and shared responsibility.
The article argues that the energy transition can look better on paper than it performs in real time. Even as installed wind + solar capacity rises, the annual electricity actually generated may stagnate—and offshore wind output is described as declining despite new builds. One suggested reason is a physical “cluster-wake effect,” where turbines/wind farms reduce wind speed for those behind them, lowering overall yield.
It also highlights that wind/solar output can collapse during “dunkelflaute” (dark, low-wind periods). The piece claims these shortfalls occur often enough that they can’t be dismissed as rare events, and that batteries alone don’t scale to cover multi-day gaps at the level needed. oai_citation:3‡Merkur
Finally, it criticizes the way progress is communicated: the widely quoted “~60% renewables share” can rise partly because total electricity demand falls (the article points to deindustrialization and reduced consumption), not only because renewable generation surges. oai_citation:4‡Merkur
Key points the article emphasizes
- Installed capacity ≠ delivered power: The story contrasts nameplate capacity with much lower average output during periods like November 2025, and very low minimums during calm/dark hours. oai_citation:5‡Merkur
- Offshore wind can face diminishing returns: Wake/cluster interactions between turbines and neighboring wind parks are presented as a major drag on output. oai_citation:6‡Merkur
- “Dunkelflaute” isn’t rare (per the article): It lists multiple low-wind periods in 2025 and argues the challenge is under-discussed. oai_citation:7‡Merkur
- Annual targets can hide grid reality: The piece notes the grid must balance supply and demand continuously (moment-to-moment), while policy metrics often focus on annual energy totals. oai_citation:8‡Merkur
- Storage helps, but doesn’t “solve it” alone: Batteries are framed as only part of the toolkit, especially for multi-day shortfalls. oai_citation:9‡Merkur
Why it matters
If policymakers, media, and the public mainly track annual renewable percentages, they may underestimate the need for flexible generation, grid upgrades, interconnectors, demand response, and long-duration storage—the stuff that keeps the lights on when wind/solar output drops. oai_citation:10‡Merkur
Source note
This post summarizes the Ground News story page and its linked coverage (primary summary credited on Ground News to merkur.de). oai_citation:11‡Ground News
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