With $38bn raised through August, the market is on pace to top $57bn in 2025 as competition heats up for second‑hand assets and ministers sign off on megaproject
London — The United Kingdom is on course for a record year of infrastructure borrowing after a surge in debt issuance and a scramble among investors to acquire mature, cash‑generating assets. Roughly $38bn of debt was issued in the first eight months of 2025, according to market data, putting the country on a trajectory to raise at least $57bn by year‑end. If realised, that would surpass the previous high set during the last infrastructure boom and underscore how policy clarity and a deep secondary market are drawing global capital back to Britain.
At the heart of the run‑up is the rise of ‘second‑hand’ infrastructure: investors are competing fiercely for operating wind farms, regulated utilities, fibre networks and data‑centre platforms as existing owners recycle capital. Specialist secondaries funds, pension schemes and infrastructure managers report crowded auctions for brownfield portfolios, with pricing underpinned by predictable cashflows and inflation‑linked revenue. While broader corporate M&A has cooled, renewables and network assets remain notable bright spots, keeping deal pipelines open for refinancings and acquisition debt.
One emblem of the trend is Electricity North West, the regional power distribution business that changed hands at an enterprise value of about €5bn after the UK competition watchdog cleared the buyer’s move this year. The transaction – among the largest in Britain’s networks space – has already spurred waves of liability management and balance‑sheet planning across the utilities sector, with lenders citing strong appetite for sterling and multi‑currency term loans to back similar grid, fibre and energy‑transition platforms.
Policy is providing a decisive tailwind. In July, ministers gave the final investment decision for Sizewell C, a £38bn nuclear plant financed under the Regulated Asset Base model, unlocking billions of debt over the next decade. In March, the government granted the long‑awaited development consent order for the Lower Thames Crossing, a multibillion‑pound road tunnel east of London. And in June, the UK named Rolls‑Royce as preferred bidder to deliver the country’s first small modular reactors, a move expected to mobilise new supply‑chain finance and grid‑connection investment.
Beyond headline projects, regulators have begun clearing bottlenecks that constrained investment. Ofgem’s new advanced procurement approach is designed to accelerate nearly £4bn of transmission equipment orders, while a cap‑and‑floor regime for long‑duration energy storage and reforms to prioritise grid connections for strategic clean‑energy projects aim to derisk revenue and delivery. The newly branded National Wealth Fund has also stepped in alongside commercial lenders to support big subsea links and grid upgrades, signalling a more activist stance in crowding private finance into national infrastructure.
Crucially, the financing window has remained open despite higher risk‑free rates. Gilt yields climbed to multi‑decade highs this month, lifting reference benchmarks for loans and bonds. Even so, banks and private‑debt providers report robust liquidity for infrastructure credits, particularly where cashflows are regulated or availability‑based. Recent syndications have been well covered, and competition among lenders has kept execution timelines tight for quality assets. Sponsors say that rising base rates have widened the premium on inflation‑linked and contracted assets, reinforcing the investor pivot to brownfield platforms with immediate yield.
Water utilities remain a watchpoint. The sector’s investment needs are rising in the wake of tougher environmental standards and ageing pipes, and the fate of heavily indebted operators continues to colour sentiment. Yet the pipeline of asset sales, equity injections and regulatory determinations is also feeding a steady flow of refinancings and capital expenditure facilities across the regions. Debt investors say the UK’s stable regulatory framework and mechanisms such as RAB remain powerful magnets for long‑duration capital when paired with credible delivery plans and transparent policy signals.
Outside energy and utilities, digital infrastructure and ports are drawing renewed attention. Rural fibre roll‑outs and data‑centre campuses are seeking large connection upgrades and flexible financing structures, while port operators look to expand capacity and adapt for offshore wind and new trade flows. Here, too, secondary buyers are leaning in, underwriting growth via bolt‑on acquisitions and project‑level debt raised against contracted cash flows or availability‑style concessions.
From here, three variables will determine whether 2025 delivers a new record. First is the policy cadence: the pace of planning reforms, grid‑connection queues and subsidy rounds will shape how quickly shovel‑ready projects tap the market. Second is the interest‑rate path: further volatility in gilts could alter pricing and refinancing incentives. Third is the depth of the secondary pipeline: if sellers continue to bring quality brownfield assets to market, the weight of capital lined up for infrastructure debt suggests demand will meet them.
For now, the momentum is clear. With marquee projects advancing, regulatory gears turning and buyers clamouring for established assets, the UK has moved to the front of the global pack for infrastructure finance in 2025. The final tally will depend on year‑end execution – but the building blocks for a record are already in place.
