IGES 1.5℃ Roadmap-Socio-Economic transformations andbusiness opportunities to achieve the 1.5℃ targetAkihisa Kuriyama
Research Manager, Climate and Energy Area
Institute for Global Environment Strategies

IGES 1.5℃ Roadmap
As we aim for the 1.5°C target, there is a path to build a prosperous andsustainable society where decarbonization actions are also business opportunities.

• 5 Changes & 20 Opportunities：Present where business
opportunities/opportunities are on the path to 1.5°C.

• Important to encourage rulemaking to ensure the strengths of eachcompany.
https://1p5roadmap.iges.jp• Detailed technical report✓ Japan’s emission pathways that contribute to the 1.5°C target

IGES 1.5℃ロードマップ：日本の排出削減目標の野心度引き上げと 豊かな社会を両立するためのアクションプラン

✓ Decarbonization strategies aimed at creating a “moreconvenient and secure society” and achieving “high productivity
in corporate activities”✓ Roadmaps (action plans with milestones) for sectors
2Leveraging socioeconomic changes triggered by digitzation as an opportunity
Progress in achieving “high value-added and productivity through digital transformation (DX)”

Industrial &Commercial Sectors

Mobility

Productivity improvement throughdigitization• Automation and electrification of
production processes
Increase in telework and online
meetings• Decrease in commuting andbusiness trips• Decrease in office floor space

Diffusion of CASE
• Decrease in number ofvehicles• BEV& Automated driving
Efficient logistics

Energy Sector
Highly accurate weather andpower demand forecasting
Advanced power flow
management through adigitalized power grid
Coordinated management of
distributed resources anddemand response

Achieving decarbonisation while enriching our lives and jobs
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These changes will also promote electrification, energy savings,
and the use of renewable energy.
Society needs less energy<Change in final energy consumption>▼30%

Renewable energy will increase drastically(mostly offshore wind and rooftop solar)<Changes in power supply by renewable energy>

▼48%

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Changes and Opportunities Presented in the 1.5℃ Roadmap

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Changes

20
Opportunites

Productivity

EnergyProduction

Material
Use

Rules &InfrastructureMarket &Mindset

Shift to High ValueAdded Services

Connect Energy
Services via Digital

Make Decarbonisation
Economically
AdvantageousInvest People, Dataand Network as
Sources of Values

Improve Quality andEfficiency ThruElectrification

Increase PV Facilities
Around Daily Life

Create High ValueAdded Production
without Losses
Produce Materials byRenewables andHydrogen

Standardise
Comfortable &Sustainable Buildings

Make Travel Time andSpace Creative

Offshore Wind Power
Grow in the Ocean
Shared with Others

Mainstream Tough andLightweight Materials

Further Develop
Digital Infrastructure

Create More Choices
for Mobility andPresence
Increase the Value of
Durable Things andServices

Spread the practice ofShare and Reuse

Hydrogen Makes
Renewables More
Convenient

Cities as theStorages ofResources

Make Everyone Can
Challenge Again

Prosperous andSustainable SocietyLess Risk of Climate Change

Convenient, Safe and Secure Life

Build Prosperous
Cities All Over Japan

Development Based on
Self-Sufficient Energy
5The 1.5℃ Roadmap website is now publishing a series of case studies on
20 opportunities and future visions from progressive companies.

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Daiwa House Group
Standardization of ZEB/ZEH and rooftop solar PV■取り組み概要■目指す将来像2030年までに、やれることはすべてやる。

新築建築物のネット・ゼロ・エネルギー化と２０ 既存建築物の省・創エネ改修、および再生５ 可能エネルギーの供給を通じ、カーボン０ニュートラルの実現を目指します。

私たちが建物を建てるほど社会の脱炭素化を進め、カーボンニュートラルを実現する。
大和ハウスのカーボンニュートラル戦略

２０３０

新築建築物における居住・使用段階の温室効果ガス排出量を、2015年度比63％削減することを目指します。
すべての新築住宅・建築物をZEH・ ZEB化するとともに、全棟に太陽光発電を搭載することにより、再生可能エネルギー100％のまちづくりを推進します。

商業・事業施設｜ZEB

参考資料： 大和ハウス工業HP 「脱炭素への挑戦｜カーボンニュートラル戦略」
https://www.daiwahouse.co.jp/sustainable/eco/decarbonization/

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Daiwa House Group
Introducing internal carbon pricing for real estate investments■取り組み概要■目指す将来像

CO2排出量の少ない建物は将来に渡り事業価値が高いものとみなし、投資対象物件の収益に 【CO2削減量（t）×20,000円】 を「みなし収益」として上乗せして投資判断を行う

家賃を抑えたい

初期コストを抑えたい

現

テナント

状

負の循環

デベロッパー＄

高利回り物件に投資したい

投資家・金融（初期コストのかかる）⇒ ZEHやZEBの開発・流通が抑制
CO2排出の小さ
いZEH・ZEBに入居したい

ICPにてZEH・
ZEBの開発を後押し【運用ルール】➢ ICPを用いてCO2削減量を金額換算し、投資判断基準の「内部収益率IRR」に反映➢ Nearly ZEB（ZEH）以上の物件にのみ適用 ※屋根面積が小さい場合は、Ready以上に緩和➢ ICPを適用前の「実IRR」にも下限値を設ける ※収益性を度外視するわけではない
参考資料： 大和ハウス工業リリース 「日本初 投資用不動産の投資判断基準としてICP制度を導入」
https://www.daiwahouse.co.jp/about/release/house/20230420143217.html

将テナント

来正の循環

デベロッパー＄

空室リスクの低いZEH・ZEBに投資したい

投資家・金融⇒ ZEHやZEBがマーケットで評価

Example of the changes in “Rules & Infrastructure”

Promotion of decarbonization management across the value chain
2040
2035
Market forselecting higher
energy-efficientbuildings
Retrofit to theexisting buildings

2030

Current
forefront
efforts•••

Standardization of ZEB/ZEH
and rooftop solar PV
Valuation of buildings with highenergy performance by ICP
Ongoing dialogue withcompanies in the supply chain

Standardizationof ZEB/ZEH
buildings••••

Mandatory ZEH (Grade•5) in new housings
Expansion of ZEB/ZEH•
related markets
Improve understandingof ZEB/ZEH

Progress in legislation
related to carbon pricing
Buildings with higher
insulation performanceElectrification of air
conditioning and water
heating facilities

Increase inZEB/ZEH
building stock• Increase in ZEB/ZEH
building stock• Increase in PV installation
on roofs of existingbuildings

ZEB/ZEH has high added value in terms of BCP (BusinessContinuity Plan), living comfort, and intellectual productivity.
9 9The 1.5℃ target could be achieved if individual advanced efforts are
expanded while changing the rules and mindsets of society.
①Companies promote their advanced initiatives with high valueadded products and services as part of their long-term strategies
Changes in Energy
Production②Establish rules,
infrastructure, and markets toencourage the spread ofadvanced initiatives that cancontribute to achieving the1.5℃ target.

Changes in
Productivity

Changes inMaterial Use

Changes inRules &Infrastructure③Companies create further
advanced initiatives in a
sophisticated and organic
manner in new markets andsocieties.

Changes inMarket & Mindset

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We will continue to develop activities to ensure that the IGES 1.5℃ roadmap isutilized by as many people as possible.
IGES has launched the 1.5℃ Roadmap website, whichis constantly updated with relevant information suchas company case studies and interviews.

Video archives from past events are also available.

••••

COP28Japan Pavilion
ISAP 2023
1.5℃ロードマップ報道関係者向け発表会
G7サミット2024に関する報道関係者向け説明会

https://1p5roadmap.iges.jp

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