I-SEM Daily Briefing — 4 October 2026
Table of Contents
Market Snapshot
| Metric | Value |
|---|---|
| Mean DAM Price | €177.92/MWh |
| Median Price | €181.53/MWh |
| Std Dev | €28.16/MWh |
| Peak Price | €224.64/MWh (18:30) |
| Min Price | €118.37/MWh (13:30) |
| Price Range | €106.27/MWh |
| Periods above €150 | 38 of 48 (79%) |
| Periods above €200 | 9 of 48 (19%) |
| Peak Avg (07–22) | €173.54/MWh |
| Off-peak Avg (22–07) | €185.22/MWh |
| Peak/Off-Peak Spread | €-11.68/MWh |
| Cheap/Dear Spread | €123.0/MWh → €220.74/MWh (€97.74) |
| Wind % of Demand | 43.2% |
| Wind Range | 33.8%–57.2% |
| Mean Demand | 3817 MW |
Price Profile #
Std dev €28.16/MWh · Median €181.53/MWh · Periods above €150: 38 of 48 (79%)
Price vs Wind #
Mean wind: 43.2% · Range: 33.8%–57.2%
Week in Context #
Price Duration Curve #
Periods above €150: 38 (79% of day) · Above €200: 9 (19% of day)
Peak / Off-Peak Spread #
Peak avg (07:00–22:00): €173.54/MWh · Off-peak avg: €185.22/MWh · Spread: €-11.68/MWh
Cheap window: €123.0/MWh · Dear window: €220.74/MWh · Spread: €97.74/MWh — the actual cheapest and dearest 2-hour blocks of the day, wherever they fall on the clock
Commentary #
Half-hourly data — 2026-10-04
| Period | Time | Price (€/MWh) | Wind % |
|---|---|---|---|
| 1 | 23:00 | 204.16 | 33.8% |
| 2 | 23:30 | 198.03 | 37.7% |
| 3 | 00:00 | 192.80 | 41.7% |
| 4 | 00:30 | 189.50 | 41.2% |
| 5 | 01:00 | 190.25 | 39.4% |
| 6 | 01:30 | 189.42 | 41.4% |
| 7 | 02:00 | 184.85 | 41.4% |
| 8 | 02:30 | 182.03 | 40.6% |
| 9 | 03:00 | 176.50 | 40.6% |
| 10 | 03:30 | 176.03 | 42.9% |
| 11 | 04:00 | 176.03 | 44.7% |
| 12 | 04:30 | 174.73 | 42.8% |
| 13 | 05:00 | 180.94 | 44.1% |
| 14 | 05:30 | 182.00 | 45.6% |
| 15 | 06:00 | 188.00 | 46.6% |
| 16 | 06:30 | 194.20 | 45.2% |
| 17 | 07:00 | 189.92 | 43.5% |
| 18 | 07:30 | 191.00 | 44.4% |
| 19 | 08:00 | 181.00 | 41.8% |
| 20 | 08:30 | 181.07 | 40.8% |
| 21 | 09:00 | 168.00 | 38.4% |
| 22 | 09:30 | 165.79 | 38.6% |
| 23 | 10:00 | 163.50 | 36.9% |
| 24 | 10:30 | 158.16 | 36.7% |
| 25 | 11:00 | 145.25 | 37.4% |
| 26 | 11:30 | 135.22 | 36.4% |
| 27 | 12:00 | 134.40 | 38.1% |
| 28 | 12:30 | 132.40 | 37.6% |
| 29 | 13:00 | 126.53 | 36.9% |
| 30 | 13:30 | 118.37 | 39.2% |
| 31 | 14:00 | 123.55 | 38.1% |
| 32 | 14:30 | 123.55 | 41.7% |
| 33 | 15:00 | 145.25 | 49.3% |
| 34 | 15:30 | 145.25 | 50.6% |
| 35 | 16:00 | 173.42 | 54.1% |
| 36 | 16:30 | 185.42 | 51.0% |
| 37 | 17:00 | 211.00 | 50.2% |
| 38 | 17:30 | 220.03 | 47.0% |
| 39 | 18:00 | 221.05 | 46.3% |
| 40 | 18:30 | 224.64 | 43.1% |
| 41 | 19:00 | 217.23 | 41.4% |
| 42 | 19:30 | 219.15 | 41.1% |
| 43 | 20:00 | 212.28 | 42.8% |
| 44 | 20:30 | 207.09 | 44.5% |
| 45 | 21:00 | 197.65 | 51.5% |
| 46 | 21:30 | 189.00 | 54.2% |
| 47 | 22:00 | 179.27 | 55.3% |
| 48 | 22:30 | 175.28 | 57.2% |
For the week-level picture and what it means if you're buying, see Weekly Analysis — 28 September–4 October 2026.
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