A coalition of unions, environmental organisations and economic thinktanks is pushing ministers to significantly expand the National Wealth Fund, arguing that a more powerful institution could unlock the kind of investment Britain desperately needs to modernise its infrastructure and rebalance its economy.
The appeal, published on the eve of the Labour party’s first annual conference under Prime Minister Andy Burnham, sets out a bold vision for turning the NWF into what its supporters describe as a world-class national development bank. At its heart is a simple message: the fund’s current financial capacity is too modest to deliver the transformation the country requires.
The Case for a Bigger Fund
The National Wealth Fund was established in July 2024 by Rachel Reeves during her time as chancellor, born out of a manifesto commitment to pull in private capital for major infrastructure schemes. Its original design aimed for a ratio of roughly £3 in private investment for every £1 of public money deployed, targeting areas such as ports, gigafactories, hydrogen projects and steel production.
Crucially, the fund is not a sovereign wealth fund in the mould of those run by Norway or Saudi Arabia, which typically manage revenues from natural resources, trade surpluses or privatisation proceeds. Instead, it operates more like an investment vehicle intended to de-risk large-scale projects and give private investors the confidence to commit their money to the UK.
Yet despite this promising start, a broad group of campaigners — including the TUC, Greenpeace, WWF and the New Economics Foundation — believes the fund’s remit should be far wider. Their statement highlights the £500m partnership with the Manchester Good Growth Fund as evidence that the NWF is already playing a valuable part in channelling investment toward clean energy, modern infrastructure and regional growth.
However, they argue that this is only the beginning.
UK Versus Germany: A Stark Comparison
One of the most striking elements of the campaigners’ case is an international comparison that puts the NWF’s scale into sharp relief. The fund currently has around £5.5bn available to invest each year over the next five years. By contrast, Germany’s public investment bank, KfW, lent approximately €62bn — equivalent to £53.5bn — to households, businesses and local authorities in 2025 alone.
That figure is nearly ten times larger, a gap that the coalition says reflects a missed opportunity on Britain’s part. They contend that a significantly enlarged NWF could help close that divide and compete on a global stage for the investment flowing into green technology, energy transition and modern infrastructure.
To achieve this, the groups are calling for the NWF to be granted greater independence to raise its own finances and invest over the long term, following a model used by public development banks in other parts of the world. They stress that such a move would sit comfortably within the government’s existing fiscal rules, which require day-to-day spending to be matched by income while allowing borrowing for investment purposes.
What Could Change?
The coalition has laid out several concrete ways a more empowered fund could reshape the British economy.
First, it could accelerate the retrofitting of homes and commercial buildings, a project that has stalled under the weight of poor energy efficiency standards and rising costs for householders. Second, it could give the public a meaningful stake in critical infrastructure by taking part-ownership positions in major schemes, potentially unlocking new sources of revenue for communities.
A targeted investment programme could also be launched to bring emerging green industries to the areas hit hardest by decades of deindustrialisation — a promise that has long gone unfulfilled in many post-industrial towns. Additionally, the fund could help support a network of regional banks dedicated to channelling finance into the small businesses that underpin local economies across the country.
John Healey, who is preparing his first budget as chancellor on 28 October, is being urged to take the expansion seriously. Burnham has already signalled his willingness to explore flexibility within the government’s fiscal rules to borrow more for infrastructure investment, suggesting the political groundwork may be in place.
The Government’s Case
A Treasury spokesperson defended the fund’s early record, pointing to £3.9bn of investments delivered in its first year. Those projects include work on Sizewell C, a second gigafactory in Sunderland and improvements to flood defences in Wales. The government also said the NWF had helped generate an additional £5.25bn in private finance and secured or created around 11,500 jobs.
“The government remains committed to the NWF’s long-term mission to crowd in private capital and drive economic growth into every postcode in the country,” the spokesperson said.
It is a message designed to reassure critics that the fund is already delivering results. Whether that is enough to satisfy those calling for a far more ambitious remit remains to be seen, particularly with a budget looming and conference season in full swing.
Why it Matters
For households and businesses across Britain, the stakes are straightforward. A more powerful National Wealth Fund could mean lower energy bills, better infrastructure, and a pipeline of high-quality jobs in regions that have felt left behind for generations. The debate over the fund’s scale is not an abstract policy discussion — it has direct consequences for the cost of living, the strength of local economies and the pace of the UK’s transition to a cleaner industrial base. With a budget just weeks away and a new prime minister eager to establish his economic credentials, the outcome of this push could shape the country’s investment landscape for years to come.
