Rock Rail’s innovative financing approach attracts more awards

South Western

Members of the Rock Rail team were joined by train operator FirstGroup and Aberdeen Standard Investments, Rock Rail’s co-equity investors, at the Partnerships Awards event to receive the two awards for Rock Rail South Western. The event, held in London in May 2018, celebrates the best of public private partnerships.

The Rock Rail South Western deal reached closure last year on the funding and supply of 90 ‘AVENTRA’ trains made up of 750 electric multiple unit vehicles. The fleet will enter service on the South Western franchise from mid-2019 and will offer a significantly enhanced passenger experience, increased capacity and reduced journey times on the Windsor, Reading and West London suburban routes serving Waterloo station.

The transaction built on the success of the Rock Rail’s previous rolling stock deals, Rock Rail Moorgate and Rock Rail East Anglia, but was significantly larger at £1 billion. The larger investment requirement led to Rock Rail expanding the previous institutional investor funding group with a total of 9 institutions providing long term fixed rate debt and resulting in the largest unwrapped, unrated private placement ever in the UK greenfield infrastructure space.

The Rock Rail structure critically involves a long-term alignment of interests between the franchise operator, the Department for Transport, the manufacturer, debt and equity investors and Rock Rail.

The approach has created a new market standard that enables the provision of long term institutional debt finance to fund rolling stock in the UK for short term franchises under franchise competition conditions. By enabling direct institutional investment, it has increased the level of competition amongst funders and has and will continue to drive down costs and offer significantly better value for money to the government, the UK tax payer and rail passengers.

 

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Driving Net Zero: How Rock Road 
Is Funding the UK’s Bus Transition

Accelerating the shift to clean, affordable, zero-emission transport

Year
2025
Category
Rock Road
Share

The Challenge

The UK bus network is at the heart of everyday travel – but over 30,000 diesel buses still need replacing to achieve a fully zero-emission fleet.

While around 5,000 battery-electric buses are already on the road, the high upfront cost of electric vehicles and depot electrification continues to slow the transition. Traditional funding routes — such as government grants or short-term bank finance – have helped start the journey but cannot support decarbonisation at the scale required.

A new, sustainable funding model was needed: one that could attract long-term capital, spread costs fairly, and give operators and authorities confidence in the future.

The Solution

In 2021, Rock launched Rock Road to deliver exactly that –  applying its proven infrastructure financing approach from the rail sector to the UK’s clean bus revolution.

Working with Aviva, the National Wealth Fund, and HSBC, Rock created a dedicated investment platform that channels infrastructure-style finance from pension funds and institutional investors directly into zero-emission bus projects.

This model provides:

Impact

The platform has already raised £100 million, with capacity to scale to £1 billion per year over the next decade – providing a consistent source of affordable capital for local authorities and operators.

Rock’s model ensures that the total cost of ownership (TCO) of electric buses can now be lower than diesel equivalents, thanks to both cheaper long-term finance and reduced operating costs.

In London, Rock has financed 120 zero-emission buses under 7-year leases aligned with Transport for London’s contract lengths. This structure gives operators flexibility and certainty:

The Future

Rock Road’s ambition is to support the rollout of zero-emission fleets across the UK – helping local authorities and operators meet climate goals without overextending public budgets.

By leveraging limited government funding to attract large-scale private capital – for example, £10 million of public investment unlocking over £250 million in total funding – Rock’s model accelerates decarbonisation while keeping costs low for the public sector.

Our ambition is to make electric buses the default choice - not because of subsidy, but because they are the best economic and environmental option.
Louis Swindell
Commercial Director, Rock Road