Electricity emission factors
Scope 2 uses the electricity emission factor of the area determined from the prefecture in the property's address.
| Area | Prefectures | Factor (tCO₂/kWh) |
|---|---|---|
| 北海道電力 | 北海道 | 0.000601 |
| 東北電力 | 青森県, 岩手県, 宮城県, 秋田県, 山形県, 福島県, 新潟県 | 0.000468 |
| 東京電力 | 茨城県, 栃木県, 群馬県, 埼玉県, 千葉県, 東京都, 神奈川県, 山梨県, 静岡県 | 0.000441 |
| 中部電力 | 長野県, 岐阜県, 愛知県, 三重県 | 0.000388 |
| 北陸電力 | 富山県, 石川県, 福井県 | 0.000466 |
| 関西電力 | 滋賀県, 京都府, 大阪府, 兵庫県, 奈良県, 和歌山県 | 0.000319 |
| 中国電力 | 鳥取県, 島根県, 岡山県, 広島県, 山口県 | 0.000556 |
| 四国電力 | 徳島県, 香川県, 愛媛県, 高知県 | 0.000438 |
| 九州電力 | 福岡県, 佐賀県, 長崎県, 熊本県, 大分県, 宮崎県, 鹿児島県 | 0.000347 |
| 沖縄電力 | 沖縄県 | 0.000698 |
| Prefecture cannot be determined | — | 0.000441 |
The prefecture is taken from the first part of the address that is 北海道, or two or three characters followed by 都, 府 or 県. The factors do not change with the fiscal year.
Gas and district heating emission factors
| Kind | Factor | How it is used |
|---|---|---|
| City gas | 0.00223 tCO₂/m³ | Multiplied by gas use (m³) to give Scope 1. |
| LPG | 0.00300 tCO₂/m³ | Stored, but not used in the emission calculation. |
| District heating | 0.000057 tCO₂/MJ | Stored, but not used in the emission calculation. |
District heating use (GJ) is not included in the emission calculation.
Energy conversion
| Conversion | Value | Where it is used |
|---|---|---|
| Gas | 1 m³ = 11.06 kWh | Energy totals such as 「総エネルギー消費量」 (EN1) |
| District heating | 1 GJ = 277.78 kWh | Energy totals such as 「総エネルギー消費量」 (EN1) |
Use-type benchmarks
For a property with no energy data for any month of the selected fiscal year, electricity and gas use are estimated by multiplying the use-type benchmark by the floor area.
| Use type | Electricity (kWh/m²) | Gas (m³/m²) |
|---|---|---|
| 「オフィス」 | 120 | 15 |
| 「商業」 | 160 | 20 |
| 「住宅」 | 50 | 25 |
| 「物流」 | 40 | 5 |
| 「ホテル」 | 200 | 40 |
For buildings older than 20 years, use is increased in proportion to the years beyond 20, at 2% per 10 years. The building age is the calendar year after the fiscal year, minus the year of completion.
Scope 3 substitute
For a fiscal year with no Scope 3 entered on the property's 「Scope 3」 tab, Scope 3 is taken as 15% of Scope 1 plus Scope 2.
Sources of the values
PropScore holds no record of the publisher or publication year of the factors, conversion values and benchmarks on this page.