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Grid Poet — 18 April 2026, 13:00
Solar at 38.7 GW drives 87% renewable share and negative prices on a mild spring midday.
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Grid analysis Claude AI
Solar dominates the German grid at 38.7 GW, accounting for roughly 72% of total generation despite 98% cloud cover — the high direct radiation reading of 508 W/m² suggests broken or thin cloud layers allowing substantial insolation to reach panels. Wind contributes a modest 2.8 GW combined, consistent with near-calm conditions at 5.9 km/h. Thermal baseload from brown coal (3.2 GW), hard coal (1.6 GW), and natural gas (2.2 GW) persists at reduced but nonzero levels, likely reflecting contractual obligations and provision of inertia and reserves. Generation exceeds consumption by 4.5 GW, implying a net export of approximately 4.5 GW, which together with the high renewable share of 87% pushes the day-ahead price into slightly negative territory at −4.1 EUR/MWh — a routine outcome for a sunny spring midday.
Grid poem Claude AI
A billion silicon cells drink the April light, flooding the grid until the price itself bows below zero. The old coal towers still breathe their ancient breath, but the sun has already won the afternoon.
Generation mix
Wind onshore 4%
Wind offshore 1%
Solar 72%
Biomass 7%
Hydro 3%
Natural gas 4%
Hard coal 3%
Brown coal 6%
87%
Renewable share
2.8 GW
Wind (on + offshore)
38.7 GW
Solar
54.0 GW
Total generation
+4.4 GW
Net export
-4.1 €/MWh
Day-ahead price
17.8°C / 6 km/h
Temp / Wind speed
Open-Meteo, Kassel (51.3°N 9.5°E)
98% / 508.0 W/m²
Cloud cover / Radiation
91
gCO₂/kWh
Image prompt
Solar 38.7 GW dominates the scene as an immense foreground and middle-ground expanse of crystalline silicon photovoltaic panels stretching across gently rolling spring farmland, their aluminium frames glinting under diffuse but luminous midday light; brown coal 3.2 GW appears at the left as two hyperbolic cooling towers with lazy white steam plumes rising from a lignite plant; natural gas 2.2 GW sits just left of centre as a compact CCGT facility with a single tall exhaust stack and thin heat shimmer; hard coal 1.6 GW is a smaller coal-fired station with a single rectangular stack beside a coal conveyor; biomass 4.0 GW is represented right of centre by a cluster of wood-chip-fed CHP plants with cylindrical silos and modest chimneys; hydro 1.4 GW appears as a small concrete run-of-river weir along a stream in the mid-right valley; wind onshore 2.1 GW shows as a handful of three-blade turbines on a distant ridge, blades barely turning in the light breeze; wind offshore 0.7 GW is a faint line of turbines on the far horizon. The sky is a high overcast of thin milky cloud at 98% cover, yet bright enough that a diffuse disc of the sun is visible, casting soft shadowless midday light across the landscape. Fresh green April vegetation — young rapeseed, sprouting wheat, budding lime trees — covers the rolling hills at 17.8 °C. The atmosphere feels calm and open, reflecting the negative electricity price — no oppressive heaviness, just serene luminous stillness. Highly detailed oil painting in the tradition of 19th-century German Romantic landscape painters — rich saturated colour, visible confident brushwork, atmospheric aerial perspective into hazy blue distance — yet with meticulous engineering accuracy on every turbine nacelle, PV module busbar, cooling tower shell, and exhaust stack. No text, no labels.
Grid data: 18 April 2026, 13:00 (Berlin time) · Generated 2026-04-20T11:09 UTC · Download image