JEPX day-ahead spot · 2026-09-19 · 537 trading days loaded
Market Overview
System price · daily avg
16.84¥/kWh
-0.34d/d · 7d 18.40 · 30d 20.36
Peak / trough
22.5 / 10.3¥/kWh
peak 18:30 · trough 12:00 · vol 943 GWh
Solar midday depression
39%deepest area
system midday 10.59 vs day 16.84
Floor-price hours (¥0.01)
0.0h · all areas
7d total 10 h · curtailed 9 MWh latest
非化石証書 · latest auction
■FIT 非化石証書0.41+0.01FY2026 R2
■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
- 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
15.93
avg ¥/kWh
vs TKO-6.34
d/d+0.63
min/max9.7/22.6
floor h0.0
curtailed 9 MWh
Tohoku東北
12.16
avg ¥/kWh
vs TKO-10.10
d/d-4.48
min/max9.4/20.3
floor h0.0
RE 53% · 09-18
Tokyo東京
22.26
avg ¥/kWh
vs TKO0.00
d/d+1.31
min/max13.4/25.9
floor h0.0
RE 19% · 09-18
Chubu中部
19.63
avg ¥/kWh
vs TKO-2.64
d/d-1.69
min/max11.7/25.9
floor h0.0
RE 31% · 09-18
Hokuriku北陸
12.38
avg ¥/kWh
vs TKO-9.88
d/d-2.29
min/max8.1/18.7
floor h0.0
RE 41% · 09-18
Kansai関西
12.38
avg ¥/kWh
vs TKO-9.88
d/d-2.29
min/max8.1/18.7
floor h0.0
RE 18% · 09-18
Chugoku中国
12.38
avg ¥/kWh
vs TKO-9.88
d/d-1.19
min/max8.1/18.7
floor h0.0
RE 19% · 09-18
Shikoku四国
12.38
avg ¥/kWh
vs TKO-9.88
d/d+0.08
min/max8.1/18.7
floor h0.0
RE 35% · 09-18
Kyushu九州
12.37
avg ¥/kWh
vs TKO-9.89
d/d-1.20
min/max8.1/18.7
floor h0.0
RE 23% · 09-18
Renewable risk scoreboard · 30 days
Capture rates, curtailment and floor-price exposure by area (TSO actuals joined to JEPX prices)
| Area | Avg ¥ | Floor h | Floor % | Midday/Day | Solar capture ¥ | Solar capture rate | Wind capture rate | Curtail % | RE share | Risk idx | TSO data |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ■ Hokkaido 北海道 | 14.91 | 16.0 | 2.1% | 0.61 | 9.28 | 64% | 95% | 0.88% | 49% | 19 | → 09-13 |
| ■ Tohoku 東北 | 17.44 | 0.0 | 0.0% | 0.64 | 10.52 | 59% | 97% | 0.52% | 49% | 13 | → 09-18 |
| ■ Tokyo 東京 | 22.50 | 0.0 | 0.0% | 1.03 | 23.17 | 103% | 100% | 0.00% | 14% | 0 | → 09-19 |
| ■ Chubu 中部 | 23.42 | 0.0 | 0.0% | 0.98 | 22.63 | 96% | 96% | 0.00% | 22% | 1 | → 09-19 |
| ■ Hokuriku 北陸 | 20.57 | 0.0 | 0.0% | 1.02 | 20.58 | 99% | 94% | 0.00% | 36% | 0 | → 09-19 |
| ■ Kansai 関西 | 19.92 | 0.0 | 0.0% | 1.00 | 20.37 | 101% | 112% | 0.00% | 15% | 0 | → 09-19 |
| ■ Chugoku 中国 | 18.15 | 1.0 | 0.1% | 0.77 | 15.15 | 83% | 92% | 0.00% | 24% | 8 | → 09-19 |
| ■ Shikoku 四国 | 16.62 | 16.5 | 2.1% | 0.67 | 12.87 | 77% | 114% | 0.00% | 34% | 14 | → 09-19 |
| ■ Kyushu 九州 | 16.88 | 1.0 | 0.1% | 0.72 | 14.47 | 85% | 101% | 0.23% | 30% | 10 | → 09-19 |