Germany's clean spark spread widened to roughly EUR 74/MWh on 30 June, its best reading since the early-June heat series 1. Take the day-ahead high, subtract about EUR 88 of gas input and EUR 32 of carbon at a 50%-efficiency CCGT, and the gross generating margin lands there. Three weeks earlier the same spread sat near EUR -8 to -9, with CCGTs losing money on every dispatched megawatt .
The carbon leg moved too. EUA (EU Allowance) permits slipped to EUR 79.25 on 29 June, briefly losing the EUR 80 handle, then recovered to EUR 80.17 on 30 June 2 . EUA had first broken above EUR 80 on 25 June, and holding that level keeps the carbon cost near EUR 32/MWh.
That EUR 32 carbon charge is what holds the German margin in check. Strip the permits out and the same day-ahead high would clear a spark spread well above EUR 100. The reversal from three weeks of losses tracks the day-ahead rather than any fall in gas: at an unchanged EUR 88 fuel leg, the power price alone turned the spread positive.
