I-SEM Daily Briefing — 27 July 2026

Price Profile #

Std dev €29.75/MWh · Median €144.78/MWh · Periods above €150: 23 of 48 (48%)

Price vs Wind #

Mean wind: 26.1% · Range: 19.0%–36.1%

Week in Context #

Price Duration Curve #

Periods above €150: 23 (48% of day) · Above €200: 8 (17% of day)

Peak / Off-Peak Spread #

Peak avg (07:00–22:00): €168.08/MWh · Off-peak avg: €147.45/MWh · Spread: €20.63/MWh

BESS Dispatch Signal #

Simulated 1MW/2MWh battery, one optimal DAM cycle. Gross before network charges and capacity costs.

Commentary #

Wind pulled back to 26.1% after the weekend’s extremes, and the price shape snapped back to something more conventional: a positive peak/off-peak spread of €20.63, the first day this week where the traditional evening premium actually held. The morning ramp from 06:00 to 07:30 pushed price from €161.50 to €201.29 as wind eased into the mid-20s, and the evening peak at 19:00 (€214.54) came as wind dipped back toward 19%.

There was still a clear midday trough — wind held near 26–29% through the early afternoon and price sagged to €127.90, essentially flat for four consecutive periods — but nothing like Saturday or Sunday’s collapse into single digits. This was a market operating in its normal range: wind moving in the high teens to high twenties produces a moderate trough and a real, if unspectacular, evening ceiling.

Storage cleared €97 gross on a 37.8% ROI, roughly the week’s median outcome. A decent but unremarkable spread for a decent but unremarkable wind day — after two days of extremes, a reminder of what “normal” looks like in this market.