JEPX day-ahead system price on 2026-10-23: average ¥25.34/kWh (peak ¥37.99/kWh at 16:30, trough ¥11.90/kWh at 10:00); highest area Chubu ¥30.36/kWh, lowest Shikoku ¥10.93/kWh; 30-day system average ¥20.48/kWh.
Explore: JEPX spot price by area · solar capture rates and curtailment by area · balancing market (EPRX) prices · non-fossil certificate prices · Japan's new intraday market (Oct 2026) · Japan power market guide
- System avg
- ¥25.34/kWh
- Day-on-day
- +2.93
- Peak
- ¥37.99/kWh 16:30
- Trough
- ¥11.90/kWh 10:00
- Chubu (high)
- ¥30.36/kWh
- Shikoku (low)
- ¥10.93/kWh
- Floor hours 7d
- 64.5 h
- Traded volume
- 1028 GWh
JEPX day-ahead spot · 2026-10-23 · 3858 trading days loaded
Market Overview
System price · daily avg
25.34¥/kWh
+2.93d/d · 7d 24.93 · 30d 20.48
Peak / trough
38.0 / 11.9¥/kWh
peak 16:30 · trough 10:00 · vol 1,028 GWh
Solar midday depression
69%deepest area
system midday 15.09 vs day 25.34
Floor-price hours (¥0.01)
1.0h · all areas
7d total 65 h · curtailed 1,997 MWh latest
非化石証書 · latest auction
■FIT 非化石証書0.40-0.04FY2026 R1
■非FIT 再エネ指定1.21-0.09FY2026 R1
■非FIT 指定なし1.20-0.10FY2026 R1
Certificate tracker 48-slot price curve
Half-hourly area prices vs. trailing 7-day average · shaded solar midday & evening ramp
2026-10-23
- Kyushu (九州)
- System (システム)
- Tokyo (東京)
- Volume (MWh)
Nine areas at a glance
Daily average, spread vs Tokyo, day-on-day change, floor hours, and latest TSO curtailment
Hokkaido北海道
16.51
avg ¥/kWh
vs TKO-12.50
d/d+3.72
min/max5.1/37.0
floor h0.0
curtailed 271 MWh
Tohoku東北
24.28
avg ¥/kWh
vs TKO-4.73
d/d+3.39
min/max5.1/37.7
floor h0.0
RE 42% · 10-21
Tokyo東京
29.01
avg ¥/kWh
vs TKO0.00
d/d+0.46
min/max23.6/37.7
floor h0.0
RE 16% · 10-22
Chubu中部
30.36
avg ¥/kWh
vs TKO+1.35
d/d+3.57
min/max23.6/41.6
floor h0.0
RE 27% · 10-22
Hokuriku北陸
26.78
avg ¥/kWh
vs TKO-2.23
d/d+1.65
min/max13.1/41.6
floor h0.0
RE 41% · 10-22
Kansai関西
26.78
avg ¥/kWh
vs TKO-2.23
d/d+1.65
min/max13.1/41.6
floor h0.0
RE 16% · 10-22
Chugoku中国
18.69
avg ¥/kWh
vs TKO-10.32
d/d+1.66
min/max10.6/39.0
floor h0.0
RE 27% · 10-22
Shikoku四国
10.93
avg ¥/kWh
vs TKO-18.09
d/d+3.72
min/max0.0/20.9
floor h1.0
curtailed 1,726 MWh
Kyushu九州
18.38
avg ¥/kWh
vs TKO-10.63
d/d+1.37
min/max10.6/39.0
floor h0.0
RE 29% · 10-20
Renewable risk scoreboard · 30 days
Capture rates, curtailment and floor-price exposure by area (TSO actuals joined to JEPX prices)
Common TSO window 2026-09-22 → 2026-10-22; areas with a shorter window are marked amber.
| Area | Avg ¥ | Floor h | Floor % | Midday/Day | Solar capture ¥ | Solar capture rate | Wind capture rate | Curtail % | RE share | Risk idx | ID realisation | TSO window |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ■ Hokkaido 北海道 | 17.84 | 46.0 | 6.0% | 0.34 | 6.16 | 37% | 89% | 0.46% | 47% | 31 | 88% | 09-22 → 10-18 ⚠ |
| ■ Tohoku 東北 | 21.15 | 51.5 | 6.7% | 0.37 | 7.85 | 37% | 104% | 3.28% | 49% | 40 | 89% | 09-22 → 10-21 ⚠ |
| ■ Tokyo 東京 | 25.66 | 8.0 | 1.0% | 0.74 | 18.60 | 73% | 102% | 0.14% | 17% | 11 | 83% | 09-22 → 10-22 |
| ■ Chubu 中部 | 24.56 | 12.0 | 1.6% | 0.70 | 16.97 | 70% | 101% | 0.19% | 28% | 13 | 84% | 09-22 → 10-22 |
| ■ Hokuriku 北陸 | 17.47 | 12.0 | 1.6% | 0.83 | 12.06 | 70% | 113% | 0.67% | 37% | 10 | 97% | 09-22 → 10-22 |
| ■ Kansai 関西 | 17.18 | 17.0 | 2.2% | 0.82 | 13.05 | 77% | 108% | 0.01% | 19% | 10 | 93% | 09-22 → 10-22 |
| ■ Chugoku 中国 | 14.26 | 43.5 | 5.7% | 0.53 | 6.83 | 48% | 101% | 1.24% | 26% | 28 | 79% | 09-22 → 10-22 |
| ■ Shikoku 四国 | 10.85 | 79.0 | 10.3% | 0.58 | 5.70 | 53% | 100% | 2.90% | 41% | 38 | 67% | 09-22 → 10-22 |
| ■ Kyushu 九州 | 13.82 | 52.5 | 6.8% | 0.44 | 6.81 | 51% | 95% | 2.80% | 35% | 37 | 81% | 09-22 → 10-20 ⚠ |
Weekly market card
Mon–Sun summary for LinkedIn · prices, curtailment & imbalance highlights + 3 Claude headlines · cached 2026-10-18 22:00 UTC · auto-generated every Monday 07:00 JST
JEPX Pulse · Weekly Market Card
Japan power market · 2026 · Week 42 · 12–18 Oct 2026
jepx-pulse.com
JEPX day-ahead · TSO actuals · OCCTO imbalance & 連系線 · ¥/kWh
Spot avg ¥21.01 (+8.2%), peak ¥39.0; 東京–中部 FC congestion 56h led splits; Kyushu +15.7%, Hokkaido -19.7%
Curtailment 24.93 GWh, Kyushu 10.91 (solar 10.47), Chugoku 5.37, Tohoku 5.14; 63.5 floor hours, Shikoku 15.0
Hokkaido spikes 27.5h (max ¥43.5); intraday ±¥3.29; 複合 Hokkaido 45.9% short, 一次 ¥3.47 vs ¥10 cap, BESS 37.4%
System price · week avg
21.01¥/kWh
+1.59 w/w (+8.2%) · midday ×0.41
Peak / trough
39.0 / 0.0
▲ 10-13 16:30 · ▼ 10-17 10:00
¥0.01 floor hours
63.5h · all areas
areas split in 100% of slots
Curtailment (出力制御)
24.93GWh
Kyushu 10.91 GWh · 5 day(s)
Imbalance price · avg
17.62¥/kWh
-0.55 vs DA · spikes 5.2%
| Area | Avg ¥ | w/w | Floor h | Curtail GWh | Split | |
|---|---|---|---|---|---|---|
| ■ Hokkaido 北海道 | 17.68 | -4.34 | 9.5 | 0.00 | 96% | |
| ■ Tohoku 東北 | 22.28 | +1.51 | 10.0 | 5.14 | 96% | |
| ■ Tokyo 東京 | 25.08 | +1.20 | 0.5 | 1.77 | 100% | |
| ■ Chubu 中部 | 23.11 | +0.21 | 3.0 | 0.53 | 97% | |
| ■ Hokuriku 北陸 | 17.76 | +1.80 | 3.0 | 0.04 | 96% | |
| ■ Kansai 関西 | 17.10 | +1.14 | 3.0 | 0.05 | 96% | |
| ■ Chugoku 中国 | 14.74 | +1.18 | 8.0 | 5.37 | 96% | |
| ■ Shikoku 四国 | 11.13 | -2.11 | 15.0 | 1.12 | 96% | |
| ■ Kyushu 九州 | 14.70 | +1.99 | 11.5 | 10.91 | 96% |
Top movers w/w
Kyushu+1.99(+15.7%)
Hokkaido-4.34(-19.7%)
Settlement risk & grid
Grid congestionFrequency converters 56h · 56% of splits · all 196hImb. spikes156 slots · Hokkaido 27.5h · Shikoku 10.0hMax imbalance67.50 · Chubu 10-16 05:30Imbalance vs DA-0.55 ¥/kWh · spikes 5.2%Intraday vs DA+0.91 ¥/kWh · 56% above · 167 GWhSpot volume6,698 GWh · 7 days
Daily system avg · bar = min–max range
20.6
Mo
24.7
Tu
24.2
We
21.4
Th
21.6
Fr
17.6
Sa
17.1
Su
Sources: JEPX spot & intraday · TSO area supply-demand actuals (OCCTO format) · OCCTO imbalance prices & 連系線 flows · Headlines: Claude · For information only, not investment adviceGenerated 2026-10-18
Week 2026-W42 · 2026-10-12 → 2026-10-18 · 7 trading days · previous week 2026-W41 used for w/w changes