MCC Economics publishes independent analysis and commentary on issues at the intersection of economics, finance, and regulation. Our publications draw on experience from projects across energy, water, infrastructure, and public policy - providing evidence-based insights that support transparent, accountable, and effective decision-making.

Explore how the UK Infrastructure Bank is shaping the UK’s green and economic transformation. This article reviews UKIB’s mandate, funding capacity, early investments, and risks, and assesses its potential to drive long-term, sustainable infrastructure growth.
This article provides an overview and early assessment of the UK Infrastructure Bank (UKIB) following its establishment in 2021. It explores the Bank’s strategic objectives, funding capacity, sectoral priorities, and early deal activity across clean energy, digital infrastructure, transport, and water. The article also considers the pricing and risk characteristics of UKIB finance, its role in crowding-in private investment, and the challenges it faces in balancing public policy objectives with commercial discipline. Together, these insights offer a timely perspective on whether UKIB can fulfil its ambition to support net-zero delivery and drive long-term economic growth in the UK.
This article examines the UK Infrastructure Bank’s emerging role in supporting infrastructure investment and the transition to net zero. It reviews the Bank’s mandate, funding capacity, early deal activity, and sectoral focus, and considers the risks it faces as it seeks to mobilise private capital and contribute to long-term economic growth in the UK.
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Abstract
The UK Infrastructure Bank (UKIB), is a relatively new addition to the ranks of eminent institutions established in the country to accelerate investment in the UK’s infrastructure. Set up in 2021, the Bank’s mandate is to support the transition to net-zero carbon emissions by 2050.
Since its inception, the Bank has funded 18+ deals across various infrastructure sectors such as clean energy, digital, transport, waste, and water. The bank has a focus on green infrastructure projects and is consistently attracting private-sector investment both at home and from overseas investors to the country’s infrastructure projects.
UKIB has an investment-war-chest of £22 billion, as follows: £7 billion of debt; £5 billion of equity; and £10 billion for guarantees. UKIB’s money is available to private sector corporations, investment funds and local authorities.

Not only has UKIB a huge investment war-chest at its disposal for corporate and project finance: the money is cheap. UKIB’s accounts for the year ending March 2022, suggests an average interest rate close to 1% for the fortunate counterparties - although that may be misleadingly low as the reported values will reflect partial-year-loans. However, we noted the following cheap-money-infrastructure-deal examples by UKIB:

Until recently, the Bank has made ~£2 billion in total commitments since inception and few large deals have already been closed:

The Bank has already announced a total of 7 commitments in the clean energy sector, potentially investing over £800m in the sector. Fibre broadband infrastructure in the UK is also expected to benefit immensely from a total commitment of £775m by the Bank, across 6 deals in the digital sector.
UKIB faces several key investment risks such as regulatory risks, market risks, and credit risks. However, it is well-equipped to manage these risks and ensure compliance with international obligations on subsidy control and future domestic regimes.
The UK Infrastructure Bank presents an opportunity for the country to leverage its resources to mobilise investment. The Bank is already providing expertise and capacity to local governments and help them realize their infrastructure plans. The Bank is also expected to help build back better, fairer, and greener by supporting the transition to net-zero carbon emissions by 2050.
In conclusion, the UK Investment Bank is a new institution with the potential to play a major role in the UK economy. The bank has made some early progress in making funding deals, but it remains to be seen how successful it will be in achieving its mandate. The future of the bank will depend on a number of factors, but it has the potential to be a major force for economic growth in the UK.
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Explore our latest paper which examines Abu Dhabi’s solar approach—centralised utility-scale vs. distributed rooftop generation. Finds rooftop PV still uneconomical for heavily subsidised user groups but cost-effective for industry and commerce, suggesting subsidy reforms to unlock distributed solar for 2050 climate goals.
Abu Dhabi faces a strategic choice in scaling up solar energy: centralised mega-projects or decentralsed rooftop systems. This paper by our Director PJ McCloskey and analyst Rodrigo Remor analyses why distributed solar uptake remains low in Abu Dhabi and evaluates its economic viability under current conditions. Abu Dhabi has so far favored large solar parks (e.g. the 1.17 GW Noor Abu Dhabi plant) while rooftop solar adoption is minimal (~2.94 MW on government buildings by 2020, <1% of Noor’s capacity). Given the UAE’s net-zero commitment and Energy Strategy 2050 targets (44% renewable electricity by 2050), the study explores whether decentralised solar could play a larger role and what policy shifts might be required.
This paper evaluates the economic viability of decentralised solar systems in Abu Dhabi. By analysing levelised cost of electricity (LCOE), net present value (NPV), and internal rate of return (IRR) across customer groups, it finds that while rooftop solar generation is not yet cost-effective for heavily subsidised sectors, it remains viable for industrial and commercial users. The study suggests that subsidy reform could significantly improve the financial appeal of decentralised systems, aligning with Abu Dhabi’s decarbonisation targets under the UAE Energy Strategy 2050.
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Abstract
Explore our latest paper which examines Abu Dhabi’s solar approach - centralised utility-scale vs. distributed rooftop generation. Finds rooftop PV still uneconomical for heavily subsidised user groups but cost-effective for industry and commerce, suggesting subsidy reforms to unlock distributed solar for 2050 climate goals.