List of Fuel, etc. adjustment unit price

Customers under the specific retail supply provisions

(yen/kWh)

FY2026

Fuel adjustment unit price

Remote island universal service adjustment unit price

total

(Fuel, etc. adjustment unit price)

4⽉

-0.26

[-1.50]

-0.04

-0.30

5⽉

1.28

－

-0.04

1.24

6⽉

1.33

－

-0.04

1.29

7⽉

1.41

－

-0.02

1.39

8⽉

-1.8

[-3.50]

0.02

-1.78

9⽉

-2.64

[-4.50]

0.10

-2.54

10⽉

-1.64

[-3.50]

0.11

-1.53

(yen/kWh)

Fiscal Year 2025

Fuel adjustment unit price

Remote island universal service adjustment unit price

total

(Fuel, etc. adjustment unit price)

4⽉

0.56

[-1.30]

-0.01

0.55

5⽉

1.86

－

-0.01

1.85

6⽉

1.86

－

-0.01

1.85

7⽉

1.55

－

-0.01

1.54

8⽉

-0.72

[-2.00]

-0.02

-0.74

9⽉

-1.31

[-2.40]

-0.03

-1.34

October

-1.02

[-2.00]

-0.04

-1.06

November

1.01

－

-0.04

0.97

December

1.02

－

-0.04

0.98

January

1.06

－

-0.03

1.03

February

▲3.44

[▲4.50]

▲0.03

▲3.47

March

▲3.36

[▲4.50]

▲0.03

▲3.39

(yen/kWh)

2024

Fuel adjustment unit price

Remote island universal service adjustment unit price

total

(Fuel, etc. adjustment unit price)

4⽉

-1.64

[-3.50]

0.01

-1.63

5⽉

-1.64

[-3.50]

0.00

-1.64

6⽉

0.06

[-1.80]

0.00

0.06

7⽉

1.86

－

0.00

1.86

8⽉

1.86

－

0.01

1.87

9⽉

-2.14

[-4.00]

0.02

-2.12

10⽉

-2.14

[-4.00]

0.02

-2.12

11⽉

-0.64

[-2.50]

0.02

-0.62

12⽉

1.86

－

0.01

1.87

1⽉

1.86

－

-0.01

1.85

February

-0.64

[-2.50]

-0.01

-0.65

March

-0.64

[-2.50]

-0.02

-0.66

(yen/kWh)

2023

Fuel adjustment unit price

Remote island universal service adjustment unit price

total

(Fuel, etc. adjustment unit price)

4⽉

3/31まで

-5.14

[-7.00]

0.08

-5.06

4/1から

-5.14

[-7.00]

0.01

-5.13

5⽉

-5.14

[-7.00]

-0.01

-5.15

6⽉

-5.14

[-7.00]

-0.02

-5.16

7⽉

-5.14

[-7.00]

-0.02

-5.16

8⽉

-5.14

[-7.00]

-0.02

-5.16

9⽉

-5.14

[-7.00]

-0.02

-5.16

10⽉

-1.64

[-3.50]

-0.02

-1.66

11⽉

-1.64

[-3.50]

-0.02

-1.66

12⽉

-1.64

[-3.50]

-0.01

-1.65

1⽉

-1.64

[-3.50]

0.00

-1.64

2⽉

-1.64

[-3.50]

0.02

-1.62

3⽉

-1.64

[-3.50]

0.02

-1.62
  1. 2022年7月分～2025年6月分、2026年9月分～2026年10月分の燃料費調整単価は、平均燃料価格が上限価格（41,100円/kL)を超過したため、平均燃料価格を41,100円/kLとして算定しています。
  2. Fuel adjustment unit price is the discount unit price ([　] (includes reprints).
  3. Starting April 1, 2023, we are reviewing the assumptions for adjusting universal service to remote islands.
  4. Includes the equivalent of consumption tax, etc.

Customers under Terms and Conditions of Supply and Demand Contract

(yen/kWh)

FY2026

Fuel adjustment unit price

Remote island universal service adjustment unit price

total

(Fuel, etc. adjustment unit price)

4⽉

-0.26

[-1.50]

-0.04

-0.30

5⽉

1.28

－

-0.04

1.24

6⽉

1.33

－

-0.04

1.29

7⽉

1.41

－

-0.02

1.39

8⽉

-1.80

[-3.50]

0.02

-1.78

9⽉

-2.54

[-4.50]

0.10

-2.44

10⽉

-1.17

[-3.50]

0.11

-1.06

(yen/kWh)

Fiscal Year 2025

Fuel adjustment unit price

Remote island universal service adjustment unit price

total

(Fuel, etc. adjustment unit price)

4⽉

0.90

[-1.30]

-0.01

0.89

5⽉

2.11

－

-0.01

2.10

6⽉

1.92

－

-0.01

1.91

7⽉

1.55

－

-0.01

1.54

8⽉

-0.72

[-2.00]

-0.02

-0.74

9⽉

-1.31

[-2.40]

-0.03

-1.34

10⽉

-1.02

[-2.00]

-0.04

-1.06

11⽉

1.01

－

-0.04

0.97

12⽉

1.02

－

-0.04

0.98

1⽉

1.06

－

-0.03

1.03

2⽉

▲3.44

[▲4.50]

▲0.03

▲3.47

3⽉

▲3.36

[▲4.50]

▲0.03

▲3.39

(yen/kWh)

2024

Fuel adjustment unit price

Remote island universal service adjustment unit price

total

(Fuel, etc. adjustment unit price)

4⽉

-0.97

[-3.50]

0.01

-0.96

5⽉

-1.00

[-3.50]

0.00

-1.00

6⽉

0.61

[-1.80]

0.00

0.61

7⽉

2.31

－

0.00

2.31

8⽉

2.19

－

0.01

2.20

9⽉

-1.81

[-4.00]

0.02

-1.79

10⽉

-1.74

[-4.00]

0.02

-1.72

11⽉

-0.27

[-2.50]

0.02

-0.25

December

2.09

－

0.01

2.10

January

1.97

－

-0.01

1.96

February

-0.51

[-2.50]

-0.01

-0.52

March

-0.41

[-2.50]

-0.02

-0.43

(yen/kWh)

2023

Fuel adjustment unit price

Remote island universal service adjustment unit price

total

(Fuel, etc. adjustment unit price)

4⽉

3/31まで

0.47

[-7.00]

0.08

0.55

4/1から

0.47

[-7.00]

0.01

0.48

5⽉

-0.19

[-7.00]

-0.01

-0.20

6⽉

-0.81

[-7.00]

-0.02

-0.83

7⽉

-1.57

[-7.00]

-0.02

-1.59

8⽉

-2.48

[-7.00]

-0.02

-2.50

9⽉

-3.33

[-7.00]

-0.02

-3.35

10⽉

-0.36

[-3.50]

-0.02

-0.38

11⽉

-0.63

[-3.50]

-0.02

-0.65

12⽉

-0.89

[-3.50]

-0.01

-0.90

1⽉

-0.92

[-3.50]

0.00

-0.92

2⽉

-0.90

[-3.50]

0.02

-0.88

3⽉

-0.85

[-3.50]

0.02

-0.83
  1. Fuel adjustment unit price includes discounted unit prices (reprinted in [ ]) under the government's "Measures to Mitigate Drastic Changes in Electricity and Gas Prices" and "Electricity and Gas Rate Support."
  2. Starting April 1, 2023, we are reviewing the assumptions for adjusting universal service to remote islands.
  3. Includes the equivalent of consumption tax, etc.

Customers to whom the specific retail supply provisions apply

FY2026

Fiscal Year 2025

2024

2023

  1. 2022年7月分～2025年6月分、2026年9月分～2026年10月分の燃料費調整単価は、平均燃料価格が上限価格（41,100円/kL)を超過したため、平均燃料価格を41,100円/kLとして算定しています。
  2. This includes discounted unit prices under the government's "Measures to Mitigate Drastic Changes in Electricity and Gas Prices" and "Electricity and Gas Rate Support."
  3. This includes Remote island universal service adjustment unit price. Effective April 1, 2023, the assumptions for the adjustment of universal service to remote islands have been revised, and the graph reflects the revised unit price.
  4. Includes the equivalent of consumption tax, etc.
  5. For other details regarding the flat-rate Fuel, etc. adjustment unit price, the Fuel Cost Adjustment System, and the Remote Island Universal Service Adjustment System, please refer to the information for each month.

Customers who are subject to Terms and Conditions of Supply and Demand Contract

FY2026

Fiscal Year 2025

2024

2023

  1. This includes discounted unit prices under the government's "Measures to Mitigate Drastic Changes in Electricity and Gas Prices" and "Electricity and Gas Rate Support."
  2. This includes Remote island universal service adjustment unit price. Effective April 1, 2023, the assumptions for the adjustment of universal service to remote islands have been revised, and the graph reflects the revised unit price.
  3. Includes the equivalent of consumption tax, etc.
  4. For other details regarding the flat-rate Fuel, etc. adjustment unit price, the Fuel Cost Adjustment System, and the Remote Island Universal Service Adjustment System, please refer to the information for each month.