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Initiatives to Address Climate Change

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Mizuho is moving ahead with efforts to address climate change by periodically assessing the energy consumption of the entire group, setting CO2 emissions reduction targets and devising energy consumption reduction strategies centered on electric power consumption.

Status of Energy Consumption and CO2 Emissions

In fiscal 2014, the 10 Group companies (MHFG and nine core Group companies) reduced their CO2 emissions by 1% year on year (value calculated by actual emissions factor). The decrease was achieved through, for example, sustained energy conservation measures centered on electric power and the introduction and appropriate operation of high–efficiency equipment. In association with a rise in the adjusted emissions factor, CO2 emissions calculated using the same factor was up 18% year on year.

Mizuho's energy consumption*1
Item (Unit) FY2010 FY2011 FY2012 FY2013 FY2014
Direct Energy Consumption Kerosene (kiloliter) 503 405 310 424 372
Light Oil (kiloliter) 1 0 0 0 0
Heavy Oil (kiloliter) 66 94 67 93 83
LPG (ton) 12 11 4 0 0
City Gas (thousand cubic meter) 3,769 3,791 3,795 3,651 3,561
Gasoline*2 in Japan (kiloliter) 2,925 3,110 2,675 2,369 2,576
Gasoline*2 Overseas (kiloliter) 221 241 231 246 282
Indirect Energy Consumption Power*3 in Japan (megawatt–hour) 468,727 394,117 391,150 397,346 384,135
Power*3 Overseas (megawatt–hour) 32,436 34,962 35,092 30,577 31,177
Steam (gigajoule) 26,546 24,636 24,628 26,019 20,615
Hot Water (gigajoule) 15,691 6,141 5,698 17,231 40,563
Cold Water (gigajoule) 97,573 67,152 65,005 72,611 71,788
Energy Consumed by Employee Transportation Business Trips*4 (thousand kilo meter) 71,235 55,059 51,619 51,839 61,174
Water Usage Tap Water (thousand cubic meter) 1,517 1,643 1,288 1,181 1,242
Sewer Water (thousand cubic meter) 1,348 1,477 1,131 1,026 1,099

Scope of data collection:

  • *1 In Japan, in principle, data for all items are for all the facilities of 10 group companies. Overseas, in principle, the scope of data collection includes gasoline and electric power consumption. Please note that with regard to the volume of direct and indirect energy consumption past data has been reviewed because of changes in applicable locations due to relocation of offices, etc., and, therefore, some data may differ from information made public previously.
  • *2For all vehicles in Japan and overseas
  • *3Data is for 100% of the floor space of all the facilities of 10 Group companies.
  • *4Data are for air travel associated with business trips by employees of 10 Group companies (the portion of business trips centrally managed).
Mizuho's CO2 emissions (Tons of CO2)*1
Item FY2010 FY2011 FY2012 FY2013 FY2014
Direct Energy Consumption (Scope 1) Kerosene 1,253 1,008 771 1,055 926
Light Oil 3 1 0 0 1
Heavy Oil 179 256 181 251 224
LPG 37 34 13 0 0
City Gas 8,348 8,488 8,470 8,173 7,955
Gasoline in Japan 6,787 7,216 6,205 5,496 5,975
Gasoline Overseas 512 558 537 571 654
Subtotal 17,119 17,561 16,177 15,546 15,736
Indirect Energy Consumption (Scope 2) Power in Japan*2(Actual Emissions Factor) 180,352 149,047 182,479 209,032 204,421
Power in Japan*2(Adjusted Emissions Factor) 153,868 145,406 179,871 166,731 201,289
Power Overseas*3 19,612 18,266 17,546 15,395 15,989
Steam 1,513 1,404 1,404 1,483 1,175
Hot Water 894 350 325 982 2,312
Cold Water 5,562 3,828 3,705 4,139 4,092
Subtotal (Actual Emissions Factor) 207,933 172,894 205,458 231,032 227,990
Subtotal (Adjusted Emissions Factor) 181,449 169,254 202,850 188,731 224,858
Total direct energy (Scope 1) and indirect energy (Scope 2) CO2 emissions Total (Actual Emissions Factor) 225,052 190,455 221,636 246,578 243,725
Total (Adjusted Emissions Factor) 198,568 186,815 219,028 204,277 240,593
Energy Consumed by Employee Transportation Business trips*4 6,467 5,073 4,832 4,805 5,648
Water Usage*5 Tap Water 303 329 258 236 248
Sewer Water 606 664 509 462 494
Subtotal 910 993 767 698 743
Total CO2 Emissions (Actual Emissions Factor) 232,429 196,522 227,235 252,081 250,116
(Adjusted Emissions Factor) 205,945 192,881 224,627 209,780 246,984

Data calculation standards

  • *1The scope of data collection is the same as the scope for energy consumption data. Figures were calculated using the emissions factors specified in "Ministerial Order Concerning Greenhouse Gas Emissions Accompanying the Business Activities of Specified Emitters" (Final revision as of March 31, 2010; Ministry of Economy, Trade and Industry/Ministry of the Environment Ordinance No. 3). Please note that with regard to the volume of direct and indirect energy consumption, past data has been reviewed because of changes in the applicable locations due to relocation of offices, etc., and, therefore, some data may differ from information made public previously.
  • *2CO2 emissions are being calculated based on the actual and adjusted emissions factors of individual electric power companies.
  • *3Calculated based on "CO2 Emissions from Fuel Combustion" announced by the International Energy Agency publication.
  • *4"Basic Guidelines Ver. 1.0 Concerning the Calculation of Greenhouse Gas Emission Volume throughout Supply Chains" (Ministry of the Environment and Ministry of Economy, Trade and Industry, March 2012).)
  • *5Calculated based on Guidelines for Calculating Greenhouse Gas Emissions Other than Energy–Related CO2 under the Tokyo Cap–and–Trade Program (Published by the Tokyo Metropolitan Government's Bureau of Environment in June 2009).
  • With regard to direct energy consumption and indirect energy consumption, in fiscal 2013 and subsequent years, about 30% of performance data was subjected to third–party audits based on "The Tokyo Cap–and–Trade Program." From fiscal 2010 to fiscal 2012, more than 60% of performance data has been–subjected to third–party audits based on the same systems and a "Pilot Emissions Trading Volume Scheme."

CO2 Emissions Reduction Initiatives

Promoting CO2 Emission Reductions Mainly by Lowering Electricity Consumption

Over 90% of the CO2 emissions related to Mizuho's business activities arise from electricity consumption.

Mizuho has set a medium– to long– term CO2 emissions reduction target and is promoting energy conservation measures centered on electric power. Mizuho's proactive implementation of electric power consumption reduction measures during fiscal 2014 enabled a reduction of 18.9% compared with the base year, a performance that exceeded the target value.

In the years to come, Mizuho will facilitate energy conservation measures centered on electric power conservation.

Reduction Target of CO2 Emissions

Medium–term target

The target for reducing CO2 emissions per unit of floor space stemming from electricity usage for the domestic facilities of the Mizuho Financial Group and 9 core Group companies in fiscal 2020 is 10.5% below the fiscal 2009 level.

Long–term target

The target for reducing CO2 emissions per unit of floor space stemming from electricity usage for the domestic facilities of the Mizuho Financial Group and 9 core Group companies in fiscal 2030 is 19.0% below the fiscal 2009 level.

Changes in CO2 Emissions at MHFG

Graph: Changes in CO2 Emissions at Key Business Facilities

In order to eliminate the effects of changes in emission factors, substitute values based on the Act on Promotion of Global Warming Countermeasures are used for CO2 emissions. Please note that the data have been reviewed because of changes in applicable locations due to relocation of offices, etc., and, therefore, data for fiscal 2013 differs from information made public previously.

Reducing CO2 Emissions through Energy Efficient Facilities and Proper Management

To attain its CO2 emission volume reduction target, Mizuho will introduce energy–conserving facilities and take thorough measures to appropriately operate and manage those facilities and implement other energy conservation measures while also working to increase its employees' consciousness of environmental issues as a means of promoting CO2 emission reductions going forward.

In addition, based on the "Mizuho Environmental Standards" instituted with respect to the environmental friendliness of MHBK branches, MHBK is steadily expanding the number of its "Environment Friendly Branches — Mizuho Eco–Branches" equipped with solar cell power generation systems and LED lighting fixtures. Existing branches that install new equipment and renovate existing equipment based on the "Mizuho Environmental Standards" are achieving energy usage reductions of approximately 10%.

Principal Energy Conservation Measures
Facility–Related Measures
  • Introduction of such energy–conserving equipment as air conditioning equipment, LED lighting fixtures, and motion–sensor switches
  • Introduction of heat–blocking films on windows and heat–blocking curtains
  • Renovation of equipment to introduce such high–efficiency equipment as inverter–controlled cooling units
Operations–Related Measures
  • Thorough management of air conditioning temperature settings and reduction of number of air conditioning units used
  • Thinning out of lighting fixtures in hallways and elevator lobbies and improved control of those fixtures
  • Restricting the use of a portion of office automation equipment units
  • Thorough measures to ensure computer monitors are turned off when employees are away from their seats
  • Summer closures of training centers, etc., and thorough management of heating/cooling temperature settings at such facilities
  • Proactive promotion of telephone/video conferencing to reduce the number of business trips (MHBK)
Employee Consciousness–Related Measures
  • Implement "Cool–Biz" and "Warm–Biz" seasonal apparel promotion programs
  • Promote the "visualization" of energy usage/CO2 emission data for each branch and other facility (MHBK, MHTB, MHIR)
  • Increase employee consciousness of energy conservation/the saving of resources through the implementation of "Mizuho Environmental Campaigns"
Other Measures
  • Employ "green curtain" building insulation methods

Promoting the Adoption and Operation of Environment–Friendly Vehicles

Since January 2009, group companies centered on MHBK have reevaluated their low–usage–level motor vehicles, completely eliminating the use of marketing–use motorcycles and progressively reducing the number of automobiles while concurrently moving ahead with the introduction of hybrid vehicles and other low–pollution vehicles and shifting to the use of electric bicycles. The amount of NOx generated by motor vehicles operated in the Tokyo Metropolitan region by MHBK, MHTB, MHSC during fiscal 2014 was 47kg.

Going forward, plans call for moving further ahead with the introduction of hybrid vehicles and other low–pollution vehicles, while also encouraging drivers to reduce engine idling time periods, adopt other "eco–driving" techniques, and implement other measures to further reduce CO2 emission volume.

Initiatives Taken in Response to National and Local Laws, Ordinances, and Requirements

In Japan, the national government has passed the Act on the Rational Use of Energy (Energy Conservation Law), and local environmental ordinances require that business facilities emitting more than a certain level of greenhouse gases submit and disclose plans for fighting global warming. Mizuho is submitting reports for each of its facilities covered by the ordinances and is striving to reduce energy usage and the volume of CO2 emissions associated with each facility. Specifically, in line with the requirements of the Energy Conservation Law, Mizuho is working to cut back annual energy consumption per unit by 1% or more on average, and is endeavoring to attain the targets set by local governments.

Tokyo Metropolitan Environmental Security Ordinance

The Tokyo Metropolitan Government introduced "the Tokyo Cap–and–Trade Program" (for large facilities) and "the Tokyo Carbon Reduction Reporting Program" (for small and medium scale facilities) with the revision of "Tokyo Metropolitan Environmental Security Ordinance" in July 2008. Based on these systems, relevant Mizuho Group companies have submitted the reports shown below to the Tokyo Metropolitan Government. In addition, facilities subject to "the Tokyo Cap–and–Trade Program" have undergone third–party audits. In addition for properties managed in trust, the Mizuho Group collects information and submits reports to the Tokyo metropolitan government on energy usage and greenhouse gas emissions

Tokyo Metropolitan Government, "The Tokyo Cap–and–Trade Program"
Required Facilities Tokyo Carbon Reduction Plan (Japanese Text Only)
MHBK Administration Center 1 FY2014 (PDF/42KB)PDF
FY2013 (PDF/29KB)PDF
FY2012 (PDF/34KB)PDF
FY2011 (PDF/36KB)PDF
FY2010 (PDF/37KB)PDF
Administration Center 2 FY2014 (PDF/42KB)PDF
FY2013 (PDF/28KB)PDF
FY2012 (PDF/33KB)PDF
FY2011 (PDF/36KB)PDF
FY2010 (PDF/35KB)PDF
Information Center FY2014 (PDF/43KB)PDF
FY2013 (PDF/28KB)PDF
FY2012 (PDF/34KB)PDF
FY2011 (PDF/37KB)PDF
FY2010 (PDF/36KB)PDF
Haramachi Building FY2014 (PDF/40KB)PDF
FY2013 (PDF/28KB)PDF
FY2012 (PDF/36KB)PDF
FY2011 (PDF/36KB)PDF
FY2010 (PDF/35KB)PDF
MHIR Information Center FY2014 (PDF/177KB)PDF
FY2013 (PDF/31KB)PDF
FY2012 (PDF/34KB)PDF
FY2011 (PDF/37KB)PDF
FY2010 (PDF/36KB)PDF
Tokyo Metropolitan Government, "The Tokyo Carbon Reduction Reporting Program"
Required Entities Tokyo Carbon Reduction Report (Japanese Text Only)
MHBK* FY2009–(reports until FY 2012 were reported by the former MHCB.)
(former MHBK) FY2009–FY2012
MHTB FY2009–
MHIR FY2009–

Saitama Prefecture, "The Global warming strategy evaluation method form"

Under "the Saitama Global warming strategy evaluation method form" in accordance with "the Saitama Prefecture Global Warming Strategy Promotion Ordinance", Mizuho submitted the evaluation method form on required facilities, including manned branches and some un–manned branches with only ATMs, in Saitama prefecture as follows;

Required Entity The Global warming strategy evaluation form (Japanese Text Only)
MHBK FY2014 (PDF/189KB)PDF
FY2013 (PDF/43KB)PDF
FY2012 (PDF/44KB)PDF
FY2011 (PDF/37KB)PDF

City of Yokohama, Kanagawa Prefecture, "The CO2 Emission Reduction Program"

Based on the "CO2 Emissions Reduction Program" specified in the "Ordinance to Preserve the Living Environment", business facilities emitting more than a certain level of greenhouse gases are required to submit and disclose plans for preventing global warming.

Mizuho submitted the CO2 Emissions Reduction Plan and Report on required facilities in the city of Yokohama as follows;

Required Entity CO2 Emissions Reduction Plan (Japanese Text Only) CO2 Emissions Reduction Report (Japanese Text Only)
MHBK (PDF/65KB)PDF FY2014 (PDF/54KB)PDF
FY2013 (PDF/66KB)PDF
FY2012 (PDF/71KB)PDF
FY2011 (PDF/52KB)PDF
  • (Note)MHBK and MHCB merged on July 1, 2013.

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