Sustainable infrastructure is infrastructure that delivers long-term economic, social, and environmental (ESE) benefits. It is critical to achieving global climate targets and Sustainable Development Goals, and to a strong and resilient global economy. Investing in sustainable infrastructure is more important now than ever before, as the world faces a climate crisis, a global economic slowdown, and the need to address inequalities that disproportionately affect the most vulnerable people. Sustainable infrastructure presents a tremendous opportunity for positive change.
79% of global greenhouse gas emissions are related to infrastructure
4% growth in global GDP by 2030 is possible with clean energy investments
92% of SDG targets are achievable through infrastructure investment
One major barrier to decarbonising infrastructure and achieving the SDGs is the shortfall of investment in sustainable infrastructure, which we call the ‘sustainable infrastructure investment gap’. Estimates show that roughly $2.6 trillion is required annually through 2030 to meet the Sustainable Development Goals (SDGs) and stay on a path to net-zero by 2050. Closing the gap could require more than three times the current level of investment in clean energy, and 70% of the spending required is needed in emerging markets and developing economies (EMDEs).
The GI Hub is supporting global, coordinated action by governments to develop more sustainable infrastructure and scale up private sector investment in sustainable infrastructure.
This page is a portal for resources, data, and tools to support governments and industry as they develop and invest in sustainable infrastructure.
Ten actions to drive forward sustainable infrastructure investment were endorsed by the G20 in the new G20/GI Hub Framework on Scaling Up Sustainable Infrastructure Investment.
Infrastructure definitions and classifications (taxonomies) have a huge impact on how much gets invested in infrastructure and what types of infrastructure get this investment. This week the G20 and GI Hub held a roundtable on infrastructure taxonomies to explore how they can be used to help close the infrastructure investment gap.
‘Revitalising infrastructure investment’ was a focus at the recent G20 FMCBG meeting, and GI Hub-led work on sustainable investment and public infrastructure spending was endorsed.
Infrastructure Monitor is the GI Hub's annual flagship report on the state of investment in infrastructure. The 2022 report examines global private investment in infrastructure projects, infrastructure investment performance, availability of private capital and the role of MDBs in private investment in infrastructure.
The Global Briefing Report Review looks at the outcomes and discussions of the Indonesian G20 Presidency and provides an in-depth review of the Summit that gives readers insights into how it will influence global affairs in the future.
The Global Briefing Report Review looks at the outcomes and discussions of the Indonesian G20 Presidency and provides an in-depth review of the Summit that gives readers insights into how it will influence global affairs in the future.
Long-term infrastructure plans are essential to developing sustainable infrastructure. These plans and related pipelines attract investors, who need better visibility that their investments will be aligned with long-term government priorities to reduce risks associated with market uncertainty and stranded assets. Below are some reference materials and data insights related to this topic.
A new framework endorsed by the G20 sets out ten actions to drive the private sector to scale up its investments in sustainable infrastructure.
The IMF's C-PIMA framework helps governments identify potential improvements in public investment institutions and processes to build low-carbon and climate-resilient infrastructure.
Source: IMF
The World Bank Group has launched a series of Country Climate and Development Reports (CCDRs) that discuss development paths countries can take to reduce greenhouse gas emissions and boost climate adaptation.
Source: World Bank
The GI Hub’s InfraCompass found that 38% of countries do not publish infrastructure plans and 28% do not publish pipelines of projects.
Post–COVID-19, USD3.2 trillion of additional infrastructure investment was announced. More than half is being directed to long-term priorities like the low-carbon transition, affordability, digitalisation, and inclusive mobility.
As of March 2022, governments worldwide had earmarked more than USD710 billion in sustainable recovery measures, according to International Energy Agency estimates. This is the largest ever clean energy recovery effort, 40% more than was spent after the global financial crisis.
Source: IEA
The 2022 G20 Infrastructure Investors’ Dialogue highlighted that investors need clarity on countries’ transition plans for infrastructure, to enable them to better align and evolve their investments.
Source: Indonesian G20 Presidency
At least 10% of global GHG emissions can be addressed through circular infrastructure, which will require systemic change and innovation at a global scale. A G20 workshop explored circularity in infrastructure.
Sustainable infrastructure investing incorporates environmental, social, and governance (ESG) factors into investment decision-making, with a view to enabling an orderly low-carbon transition. Numerous definitions, data standards, and tools for assessing sustainable infrastructure investments have been developed in recent years leading to a proliferation of ESG approaches for infrastructure. The subsequent increase in cost and complexity has spurred harmonisation efforts worldwide. Investors are calling for better comparability between approaches, to provide greater clarity around risks and minimise greenwashing. Below are some reference materials and data insights related to this topic.
The World Bank’s Global Infrastructure Facility (GIF) created a stocktake report for the G20 which examines the proliferation and harmonisation of climate, sustainability and ESG standards for infrastructure.
Source: World Bank Group
The G20 Sustainable Finance Working Group (SFWG) has created a Synthesis Report that examines the current practices and challenges in aligning investment to sustainability goals and overcoming information challenges.
There are no agreed taxonomies, metrics or indicators detailing ESG impacts and risks relevant to infrastructure. EDHECinfra examined this in a recent report.
Source: EDHECInfra
Global private investment in infrastructure was ‘greener’ than ever in 2021, reaching a share of 60% of total private investment in infrastructure. Encouragingly, this increase in green investment was mostly in sectors beyond renewables, for which investment has been minimal in previous years.
The Compendium of Quality Infrastructure Investment (QII) Indicators presents indicators to support the G20 QII Principles, which align with the SDGs.
In a recent report created for the G20, the OECD examined 21 sustainable infrastructure definitions, standards and tools to determine the extent of convergence in ESG factors across these various approaches.
Source: OECD
The FAST-Infra Sustainable Infrastructure Label is a globally applicable label for projects demonstrating significant positive sustainability performance.
Source: FAST-Infra
The MDB Infrastructure Cooperation Platform (ICP) presents 16 key sustainable infrastructure indicators that provide common denominators of sustainable infrastructure frameworks MDB initiatives.
Source: IADB
GEMs enables member organisations to calibrate and benchmark internal models, to better estimate provisioning and set capital requirements more accurately. GEMs serves as an objective and reliable platform to discuss regulatory compliance, capital adequacy and risk management practices with auditors, rating agencies and supervisors.
Source: GEMs
The GI Hub’s Quality Infrastructure Investment (QII) Database includes case studies and examples of projects or programs that demonstrate QII or exemplify good practice.
Legal and regulatory risks are among the major barriers cited by investors in mobilising private capital into sustainable infrastructure. Despite many efforts to address this challenge over the years, significant gaps still exist, especially for emerging markets. Governments have a role to play, with support from international organisations, to develop and implement stable and transparent legal and regulatory frameworks. Below are some reference materials and data insights related to this topic.
Banking regulations play a crucial role in greenfield infrastructure financing. Recent Basel III reforms that curtail this participation can have significant effects on financing sustainable infrastructure.
Common features of regulatory frameworks for climate change, environmental and social sustainability are summarised in a stocktake report produced for the G20 by the World Bank’s Global Infrastructure Facility (GIF).
Source: World Bank Group
PPP policies and legislation can ensure that climate change impact analysis is undertaken during project development. The World Bank's Climate-Smart PPP Legal and Regulatory Framework provided references to regulatory and policy instruments from around the globe.
Institutional investors currently face some regulatory disincentives in investing in infrastructure. ‘Right-size’ capital requirements for MDBs and other investors in infrastructure are needed, given the default experience of infrastructure assets.
Source: Global Financial Governance
The 2022 G20 Infrastructure Investors’ Dialogue highlighted the need for clear and transparent regulation as a condition for private sector infrastructure investment.
Source: Indonesian G20 Presidency
The GI Hub’s Coalition on Regulatory Treatment of Infrastructure as an Asset Class is shaping proposals to the G20 and standard-setting bodies to create a more conducive regulatory environment for infrastructure investment.
The GI Hub hosted an expert discussion of decisions that will drive strong investment outcomes as well as positive global impacts.
The project preparation stage of an infrastructure project is critical to ensuring its long-term viability, quality and bankability. The lack of capacity and capability for project preparation is a barrier to attracting greater private sector investment in infrastructure, particularly in emerging economies. Project preparation facilities (PPFs) provide technical and financial support during the project preparation stage. There is a need to scale up funding for PPFs and similar initiatives to create bankable pipelines of sustainable infrastructure projects. Below are some reference materials and data insights related to this topic.
A key challenge to mobilising private capital for sustainable infrastructure is the lack of bankable investment opportunities. G20 members and the donor community should scale-up funding towards PPFs, according to a recent World Bank and Global Infrastructure Facility (GIF) report.
Source: World Bank Group
Risk allocation is at the centre of every PPP transaction. The GI Hub PPP Risk Allocation Tool is a reference for appropriate allocation of project risks in PPP projects. It details 16 key risk categories across 18 project types.
The World Bank's Guide to Guidance identifies the "best of breed" guidance currently available from PPP guidelines worldwide and selected professional publications.
Source: Word Bank Group
The GI Hub’s Infrastructure Monitor report highlights that PPFs are mostly led by multilateral development banks (MDBs) (53%) and international organisations (27%) providing support to emerging markets and developing economies (EMDEs).
To invest USD3 trillion annually by 2050 (the estimated amount of investment needed to close the infrastructure gap), at least USD30 billion would be needed annually for project preparation, according to a recent World Bank and Global Infrastructure Facility (GIF) report.
Source: World Bank Group
Project preparation costs have increased substantially over the past two decades, and can now average up to 10% of the project cost.
On average, project preparation takes six years, but it can take up to 14 years if projects are not properly planned.
The Africa Infrastructure Fellowship Program is a capacity-building initiative that equips African civil servants to effectively lead infrastructure project procurement and financing.
The ILN Sustainable Infrastructure Fellowship Program equips senior leaders in emerging markets with the skills to increase private investment in sustainable infrastructure.
Current infrastructure needs far exceed the capacity of public funding, and current levels of private investment in infrastructure are insufficient to meet the sustainable infrastructure investment gap. Governments and investors need innovative solutions to convert the potential of private capital into completed transactions. There is a need to build further capacity to develop, finance, and implement the financial innovations that make infrastructure planning and delivery less costly, more efficient, and more sustainable. Below are some reference materials and data insights related to this topic.
Blended finance has the potential to propel infrastructure investment forward. Our CEO Marie Lam-Frendo and Advisor Denis Crevier recently examined what global organisations and initiatives are doing to make catalytic capital available.
The GI Hub identified 26 levers governments can apply to improve bankability and attract more private capital to infrastructure. View the funding and financing framework, including case studies of effective practice using revenue, risk management, and finance levers.
The World Bank’s Global Infrastructure Facility reports on the strategic use of innovative finance solutions—employing mechanisms such as blended finance, asset recycling, securitised programs, and the use of local currency financing—to help de-risk investment opportunities.
Source: World Bank Group
Blended finance is one critically important approach to mobilise new sources of capital for the SDGs. Around half the funding required to achieve the SDGs in developing countries can be in the form of investment.
Source: Convergence
The total market value of infrastructure assets under management (AUM) grew rapidly from USD170bn in 2010 to USD1tn in 2021. This indicates that private investors continue to increase allocations of capital to infrastructure assets.
In 2021, 20% of private investment in infrastructure projects was financed either by a green bond (10%) or a green loan (11%). This sustainable financing share is more than double the average sustainable financing share (9%) in the five years before 2021.
MDBs have made significant climate finance commitments. As of 2020, overall commitments of the five major MDBs reached USD32 billion.
The New Deals webinar series by the GI Hub and IFC shares practical solutions and funding innovations used to create bankable projects while attracting private investment, de-risking the investment, and achieving SDGs.
The 2022 G20 Infrastructure Investors’ Dialogue highlighted the private investors’ commitment to developing and financing sustainable infrastructure. This reinforced the strong demand from international investors for more bankable infrastructure investment opportunities.
Source: Indonesian G20 Presidency
Infrastructure technology (InfraTech) is essential to infrastructure achieving net zero and the SDGs. It provides the breakthrough solutions needed to maximise investments and enable us to do more with less. The infrastructure industry needs to break down barriers that have historically blocked the investment needed to enable InfraTech adoption at scale across the infrastructure lifecycle. This is a complex challenge that involves all players – from the policymakers who decide priority outcomes for infrastructure through to government procurement teams, private consultants and delivery partners, technology developers and start-up companies, venture capitalists, and other investors. Below are some reference materials and data insights related to this topic.
The G20 can take a leading role in helping scale up InfraTech investment through enablement, by acting as a facilitator of a global InfraTech ecosystem. Eight effective approaches were highlighted as opportunity areas for the G20 moving forward.
Better awareness around InfraTech use cases and benefits can spur its adoption. Nearly 100 case studies across a wide range of sectors and countries were analysed to derive effective approaches to scaling up InfraTech.
InfraTech can improve the efficiency of infrastructure investment, such as by reducing cost overruns. A study by the Inter-American Development Bank (IADB) states that 0.65% GDP (around 22% of the total investment in infrastructure) could be saved by minimising cost overruns from infrastructure.
Source: IADB
The World Bank’s report on InfraTech Value Drivers indicated that new analytical capabilities in portfolio planning could deliver 10–20% in savings on capital expenditure.
Source: World Bank
The McKinsey Global Institute estimates that technology can increase construction productivity by 15% globally. Better practices can help firms unlock digital’s value across their enterprises.
Source: McKinsey Global Institute
Our podcast series Innovating Infrastructure explores the top 10 solutions for more resilient infrastructure from our 2021 InfraChallenge innovation competition.
Hear from an expert panel on what makes InfraTech investible and how to de-risk technology and mobilise more investment, specifically in the context of the climate transition.