Environmental Performance Data

Third-party Guarantee

The actual values marked with a ☑ among the following environmental performance data have received a third-party guarantee from Ernst & Young ShinNihon LLC.

Warranty report (PDF:44KB)

Boundaries

Starting from the FY2023 results, environmental performance data is disclosed by combining the data from The Nippon Road Co., Ltd. and Maruhiko Watanabe Construction Inc.

Decarbonization

Emissions from overseas subsidiaries and certain affiliates are estimated using domestic emissions data and overseas net sales figures.

CO2Emissions: Results and Goals（Scope1＆Scope2）

Category Unit FY2021 FY2022 FY2023
Actual Actual Actual
During Construction Scope1 t-CO2 195,510 150,718 ☑159,726
Scope2 21,104 45,400 ☑67,440
Total 216,614 196,118 ☑227,166
Intensity t-CO2／
amount of sales
(¥100 millions)		 16.37 11.29 13.35
Own Offices
＋
Storehouses and factories		 Scope1 t-CO2 2,308 2,878 ☑62,672
Scope2 14,180 15,713 ☑33,426
Total 16,488 18,591 ☑96,098
Total Scope1 t-CO2 197,818 153,596 ☑222,397
Scope2 35,284 61,113 ☑100,867
Total 233,102 214,709 ☑323,264

Note: These emission boundaries cover both domestic and overseas consolidated entities, where “domestic and overseas consolidated” refers to individual and consolidated subsidiaries.
The significant year-on-year increase in CO2 emissions at the Company’s offices, storehouses, and factories is primarily due to the inclusion of CO2 emissions from The Nippon Road Co., Ltd. in the calculations.
Until FY2022, diesel fuel used for transporting construction-generated soil was classified as Scope 1. However, after partially systematizing the calculations and reviewing the overall method, the decision was made to reclassify this fuel use as Scope 3/Category 5 (waste generated by the business). As a result, the aforementioned Scope 1 emissions during construction do not include the 19,724 t-CO2 related to fuel used for transporting construction-generated soil, as this is now included in Scope 3/Category 5 emissions for disclosure. The table for prior fiscal years does not reflect the impact of this change.

Supply Chain CO2 Emissions（Scope3）

Category Unit FY2021 FY2022 FY2023 note
1.Purchased goods / services t-CO2 1,497,319 1,783,512 ☑2,293,140 Target: Steel Materials, Rebar, Ready-mixed Concrete, Cement, Aluminum Products, Glass, Asphalt Mixture, Crushed Stone
2.Capital goods 236,559 211,335 ☑161,232
3.Fuel and energy related activities 16,894 18,285 ☑25,296
4.Upstream transportation and distribution 15,877 21,917 ☑26,305
5.Waste generated from business 120,687 144,583 ☑161,321
6.Business trip 2,556 2,583 ☑2,667
7.Employee commuting 5,650 5,784 ☑5,919
8.Upstream leased assets ‐ ‐ ‐ Not included in the calculation
9.Downstream transportation and distribution ‐ ‐ ‐ Not included in the calculation
10.Processing of products sold ‐ ‐ ‐ Not included in the calculation
11.Use of sold products*1 5,033,476 3,753,163 ☑2,500,248 Design and construction projects *50 years
12.Disposal of sold products 69,260 83,302 ☑110,949
13.Downstream lease assets*2 24,138 24,390 ☑37,465
14.Franchise ‐ ‐ ‐ Not included in the calculation
15.Investment ‐ ‐ ‐ Not included in the calculation
Scope3 total 7,022,417 6,048,852 ☑5,324,542

Note: Regarding boundaries, Category 11 includes non-consolidated domestic design/build properties, Category 13 pertains exclusively to investment development properties, and all other categories encompass consolidated domestic and overseas properties.
The significant increase in actual CO2 emissions from purchased goods and services is primarily due to the inclusion of energy consumption data from The Nippon Road Co., Ltd. in the calculations.
Cement, asphalt mixture, and crushed stone have been added to Category 1 starting from the FY2023 results. Category 5 includes CO2 emissions from the off-site transportation of construction-generated soil.

Energy Use: Results and Goals

Category Scope Target energy Unit FY2021 FY2022 FY2023
(Domestic and overseas consolidated) (Domestic and overseas consolidated) (Domestic and overseas consolidated)
During Construction Scope1 Kerosene GJ 4,678 33,819 ☑13,979
Diesel Oil 2,846,352 2,132,022 ☑2,232,509
Heavy oil 362 32,257 ☑69,609
Gasoline 0 0 0
City gas 0 0 0
LP gas 0 0 0
Scope2 Electricity 169,221 360,908 ☑529,045
Cold water 0 0 0
Hot water 0 0 0
Subtotal 3,020,613 2,559,006 2,845,142
Own Offices + Storehouses and factories Scope1 Kerosene GJ 3,888 3,844 ☑5,329
Diesel Oil 9,240 8,711 ☑69,481
Heavy oil 1,614 3,775 ☑716,871
Gasoline 4,466 4,715 ☑5,074
City gas 14,429 22,682 ☑109,401
LP gas 4 5 ☑8
Scope2 Electricity 115,241 148,652 ☑316,146
Cold water 12 12 ☑13
Hot water 9 7 ☑6
Sub total 148,903 192,403 1,222,330
Total 3,169,516 2,751,409 ☑4,067,471

Note: The increase in heavy oil consumption is attributed to the fuel usage by our SEP vessel, Blue Wind.
The significant increase in energy consumption at the Company’s offices, storehouses, and factories compared to the previous year is mainly due to the inclusion of energy consumption data from The Nippon Road Co., Ltd. in the calculations.
Until FY2022, diesel fuel used for transporting construction-generated soil was classified as Scope 1. However, after partially systematizing the calculations and reviewing the overall method, the decision was made to reclassify this fuel use as Scope 3/Category 5 (waste generated by the business). As a result, the aforementioned energy consumption does not include the 293,457 GJ used for fuel to transport construction-generated soil. The table for prior fiscal years does not reflect the impact of this change.

Resource Recycling

Waste

Category Unit FY2021 FY2022 FY2023
(Domestic and overseas consolidated) (Domestic and overseas consolidated) (Domestic and overseas consolidated)
(Domestic non-consolidated) (Domestic non-consolidated) (Domestic non-consolidated)
Construction Waste*1 Hazardous Waste 1,000 tons 9 10 2
6 8 ☑1
Total Waste 1,000 tons 2,022 2,124 2,690
1,732 1,791 ☑1,838
Non-recyclable Waste 1,000 tons 92 64 304
76 61 ☑86
Recycled Waste 1,000 tons 1,930 2,059 2,386
1,656 1,730 ☑1,752
Office Waste*2 Total Waste 1,000 tons 1.1 1.0 0.8
1.0 0.7 0.6
Non-recyclable Waste 1,000 tons 0.1 0.2 0.1
0.1 0.1 0.0
Recycled Waste 1,000 tons 1.0 0.8 0.7
0.9 0.6 0.6
  1. Construction waste is managed by reducing the basic unit (amount generated from building work / total floor area) and the final disposal rate (ratio of waste that is not reused), not the amount generated.
  2. The office waste boundary applies to waste generated from Japanese stand-alone projects. They do not include grounds, technical research laboratories and Mokkoujou we own.

Resource Use

Water usage and wastewater records

We have no legal violations regarding wastewater.

Category Unit FY2021 FY2022 FY2023
(Domestic and overseas consolidated) (Domestic and overseas consolidated) (Domestic and overseas consolidated)
(Domestic consolidated) (Domestic consolidated) (Domestic consolidated)
Water intake Construction 10,000 cubic metre 130.6 128.0 127.5
121.7 116.5 ☑117.1
Office 5.8 7.0 16.3
5.5 6.4 ☑15.5
Water Recycling
(Head Office)		 - - -
1.4 1.4 2.5
Percentage of Recycled from Business Activities ％ 20.4 17.9 15.3
Total 10,000 cubic metre 136.4 135.0 143.8
127.2 122.9 ☑132.6
Water discharge
(Public Wastewater)		 Construction 10,000 cubic metre 417.6 2,940.2 3,584.7
389.2 2,675.2 3,293.5
Office 5.8 7.0 8.6
5.5 6.4 8.1
Total 423.5 2,947.2 3,593.3
394.7 2,681.6 3,301.6

Note: Emissions into public wastewater are tabulated.Water withdrawn applies only to water supply.
The grounds, technical research laboratories and Mokkoujou we own are not included in the scope of aggregation.

Resource Use

Category Unit FY2021 FY2022 FY2023
(Domestic and overseas consolidated) (Domestic and overseas consolidated) (Domestic and overseas consolidated)
Green Procurement
Blast Furnace Ready-mixed Concrete 10,000 cubic metre 17.6 21.0 33.4
Electric Furnace Steel Materials 10,000 tons 5.6 22.0 21.8
Main Construction Materials
Ready-mixed Concrete 10,000 cubic metre 197.6 236.9 375.9
Steel Materials 10,000 tons 14.7 37.2 37.3
Rebar 35.9 21.6 21.8
Tropical Plywood Formwork 1.0 1.1 0.2

Note: Starting from the FY2022 results, the ratio of the volume of steel, including that produced by blast furnaces and electric furnaces as well as rebar purchases, was revised.
The method for calculating the amount of tropical plywood formwork, including the number of times it is reused, was revised starting from the FY2023 results.

Pollution Prevention and Waste

We have no legal violations regarding air pollution prevention.

Emissions of Air Pollutants

Category Unit Emissions source FY2021 FY2022 FY2023
(Domestic and overseas consolidated) (Domestic and overseas consolidated) (Domestic and overseas consolidated)
NOx t Electricity 24.5 40.9 72.8
Diesel Oil 292.4 218.6 233.9
Total 316.8 259.5 306.6
SOx Electricity 20.5 36.8 61.0
Diesel Oil 480.2 342.6 384.1
Total 500.7 379.4 445.2

Emission source unit
NOx: 0.310g-NOx／kWh(Electricity)　3.860 g-NOx／l(Diesel Oil)
SOx: 0.260g-SOx／kWh(Electricity)　6.340 g-SOx／l(Diesel Oil)
(Source: Japan Federation of Construction Contractors)

CFC Gas

Category Unit FY2021 FY2022 FY2023
(Domestic consolidated) (Domestic consolidated) (Domestic consolidated)
CFC gas t 30.9 26.5 15.6

Environmental Accounting

Evaluating the Financial Impact of Climate Change（Environmental Accounting）

Category Cost
(Millions of yen)
Energy-efficiency Cost of energy-efficiency in Shimizu I-2 468
R＆D Environmental business (energy-related)　Ⅳ-1 806
Cost of R＆D on environmental conservation　Ⅳ-2 1,245
Total 2,519

Financial Impact of Pollution, Waste, Materials Use

Category Cost (Millions of yen)
Pollution Cost of steps taken to prevent environmental pollution at the job site Ⅰ-1 11,207
Resource recycling Cost of proper processing of construction by-products Ⅰ-3 21,846
Total 33,053

R＆D Investment for Pollution Alleviation

Category Cost (Millions of yen)
R＆D Investment for Pollution measure, Waste reduction, Recycling, Reuse Raw material reduction 1,073

R＆D Investment for Reduction of Water Relevant Risk

Category Cost (Millions of yen)
R＆D for Water Pollution, Contaminating Soiland Grand Water 85

Environment Management Activity Financial Valuation

Category Cost (Millions of yen)
Management Operation Construction waste measures Ⅲ-2 663
Environmental Protection Measures Operation and maintain of ISO14001 Ⅲ-1 471
Environmental Burden Measures Environment load watching measures Ⅲ-3 757
Environmental Education Environment related seminar attending fee Ⅲ-5 109
Capital Investment Energy saving capital investment Ⅶ-1 15
Total 2,015

Note: The cost boundaries for these are limited to domestic only.

Material Flows（Domestic consolidated）

The flow chart below shows the flow of energy, water, and material input and waste, water, CO2 , and material output from Shimizu's office and construction activities.

Material Flows

Calculation Standard

Category Item Definition, calculation method, etc.
CO2Emissions: Results and Goals
(Scope1／Scope2)		 During Construction Scope1 Act on Rationalizing Energy Use (Energy Conservation Act)
Act on Promotion of Global Warming Countermeasures (Global Warming Countermeasures Act)
Emissions per base unit of construction （t-CO2/net sales on completed construction (per ¥100 million) calculated at specified construction sites

Based on the calculation method specified by the Japan Federation of Construction Contractors

Energy used at construction sites is measured and calculated for each type of energy as shown below.
  • Electric power: Calculated using the 2018 emissions factor of 0.461 t-CO2/MWh for end use announced by the Japan Business Federation . CO2 Emissions from Fuel Combustion 2019 (International Energy Agency) is used to calculated emissions from electric power overseas.
  • Kerosine and heavy oil A: Measured from the volume purchased. Calculated using the emissions factors in the Energy Conservation Act and the Global Warming Countermeasures Act.
At Shimizu Corporation, CO2 emissions and energy consumption during construction are calculated at sample sites of all construction sites. The results are distributed across all construction sites based on the sales of each site. In the current fiscal year, results have been compiled for 316 domestic construction sites and 69 domestic civil engineering sites out of a total of 744 domestic construction sites and 171 domestic civil engineering sites. In addition, for consolidated subsidiaries, figures for Japan are calculated using the reported values under the Energy Saving Act, while figures for overseas are calculated based on the basic unit of sales.
Scope2
Total
Own Offices
+
storehouses and factories		 Scope1 Amount of electricity used at domestic locations x emissions factor based on the Energy Conservation Act, the Global Warming Countermeasures Act, and the GHG Protocol (t-CO2/amount of energy used)
At certain consolidated subsidiaries, calculations are based on the percentage change in net sales from the previous fiscal year.
Scope2
Total
Total Scope1 Total of the above.
Scope2
Total
Supply Chain CO2 Emissions 1.Purchased goods and services Basic Guidelines on Accounting for Greenhouse Gas Emissions Throughout the Supply Chain
Database of emissions unit values used in calculating an organization’s greenhouse gas emiss ions throughout the supply chain
GHG Protocol, Scope 3 and Standard
Amount of activity and financial results x emissions factor
2.Capital goods
3.Fuel and energy related activities
4.Upstream transportation and distribution
5.Waste generated from business
6.Business trips
7.Employee commuting
11.Use of sold products
12.Disposal of sold products
13.Downstream lease assets
Total Total of the above.
Energy Use: Results During Construction Diesel, electricity, etc. Energy Conservation Act and GHG Protocol
Energy used at construction sites and offices is measured by the amount of kerosine, electricity, etc. used
Own Offices
+
storehouses and factories		 Electric power, cold and hot water, etc. Energy Conservation Act and GHG Protocol
Electricity used as offices and business locations is measured by the amount of electricity, thermal energy, etc. purchased.
Total Total of the above.
Waste Construction waste Hazardous waste The volume of hazardous waste and total waste (non-recyclable wasted, recycled waste) according the manifest, based on the Waste Management and Public Cleansing Act.
The waste volume is calculated using manifest data.
Total Waste
Non-recyclable waste
Recycled waste
Office waste Total Waste Invoices, etc. from waste management companies for the volume of total general waste (non-recyclable waste, recycled waste), based on the Waste Management and Public Cleansing Act.
Non-recyclable waste
Recycled waste
Water Intake Amount and Displacement Water intake During Construction Aggregated total of invoices from water facilities.
(Amount of tap water purchased for the workplaces and offices)
For consolidated subsidiaries, construction-related calculations are based on the basic unit of sales and the net sales figures of each subsidiary. For office locations, calculations use the water consumption per employee at affiliates and the total number of employees.
Office
Total Total of the above.
Water discharge During Construction During construction, create and calculate sales per unit of sales based on workplace sampling responses.
The office has the same amount of water intake.
Offic
Total Total of the above.

Information Disclosure rights

We disclose information on climate change through our responses to the CDP’s climate change questionnaire.

CDP Climate Change Questionnaire 2024 (PDF:1.26MB)

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