Britain’s small and medium-sized businesses have been placed at the center of the most important climate decision since the Climate Change Act, after the government launched the Seventh Carbon Budget which will cap the UK’s emissions by 535 million tonnes of CO2 equivalent between 2038 and 2042, a drop of 87 per cent on 1990.
Announced on Tuesday by the Department of Energy Security and Net Zero, the proposed limit reflects the megatonne advice given by the independent Committee on Climate Change, and comes as Britain takes its second fuel price shock in five years, this time caused by the Iran war instead of Russia’s attack on Ukraine.
For SME owners watching their energy bills soar again, the political landscape is unusually straightforward. Energy Secretary Ed Miliband has pitched the budget as a defense mechanism for “family and business finances”, arguing that domestic clean energy is the only reliable way out of what he calls the “rollercoaster” of global hydrocarbon markets. Half of all UK recessions since 1970 have been caused by fuel shocks, according to analysis cited by the Treasury published alongside the announcement.
The economic prize, in the numbers presented by the minister, is very large. An independent report from the Energy and Climate Intelligence Unit, and analysis from CBI Economics, calculates that the UK’s non-profit economy now generates £105 billion of gross value added and supports more than one million jobs, and more importantly for Business Matters readers, more than 96 percent of the 23,000 small- and medium-sized companies operating in the small or micro sectors.
Those businesses, in the data, are more productive than the broader economy. Zero employers generate £119,300 of economic value per full-time job, almost 48 per cent more than the UK average, and pay workers an average of £43,142 – comfortably above the national median. Salaries across the sector are 11 per cent higher than the UK average, according to the Aldersgate Group.
From July 2024, more than £90 billion of private finance has been committed to clean energy projects in the UK, from carbon capture plants on Teesside to the Sizewell C nuclear plant on the Suffolk coast. National Grid has separately confirmed a record £70 billion network investment plan covering 2026 to 2031, the infrastructure backbone on which much of the Seventh Carbon Budget depends.
For owner managers, the practical reading of Carbon Budget 7 is in economic units, not in megatonnes.
Government modeling shows that households installing solar panels can save up to £500 a year, while electric company cars can save up to £1,400 a year to run – and new EVs are now, on average, cheaper to buy outright than their petrol equivalents. March saw the highest monthly solar shipments in more than a decade and a record month for EV sales, suggesting that the consumer-led adoption curve seen in the CCC’s trajectory is already accelerating.
The £15 billion Warm Homes Programme, billed as the biggest home improvement program in British history, opens up a huge potential market for installers, electricians and building services SMEs – the very sector that has long been argued, as previously reported in Business Matters, to be zero equals business opportunities for SMEs as a compliance burden.
On the supply side, by 2050 the UK could reduce its reliance on fossil fuels from around three-quarters of total energy demand today to around 15 per cent, avoiding an estimated £445 billion in fuel consumption over the next 25 years.
The industry reception was very warm. Dhara Vyas, chief executive of Energy UK, said the certainty from the Climate Change Act and successive carbon budgets had unlocked “billions of pounds” of long-term investment, and that more than half of the UK’s electricity now comes from low-carbon sources.
Ben Martin, head of policy at the British Chambers of Commerce, said the budget “provides a huge boost” to new SMEs developing low-carbon technologies, while Verity Davidge, policy director at Make UK, described it as an opportunity to “modernise industrial processes” so British manufacturers can compete “on the global zero-carbon stage”.
There is, however, a clear need from business for a reliable delivery system. The Rt Hon Lord Alok Sharma, chairman of the UK Transition Finance Council, welcomed the target but urged ministers to act on the council’s recommendations to inject funds into hard-to-leave sectors. Rachel Solomon Williams, executive director at Aldersgate Group, similarly asked for a plan that sets out “clearly what steps will be taken in different sectors”, especially regarding the growing demand for electricity from heating, transport and industry.
That delivery plan, the government confirmed, will be published “as soon as it becomes operational” after Parliament passes the budget.
The Seventh Carbon Budget comes in a more contested political environment than ever before. Mr Miliband used the announcement to draw a dividing line, accusing critics of “putting their heads in the sand” for asking Britain’s children to “deal with the consequences of climate change”. The Energy Secretary has been outspoken in defending the zero agenda against political storms, framing it as a matter of jobs and energy security rather than the environment.
For investors and SMEs alike, that policy competition is itself a risk premium. As James Alexander, chief executive of UKSIF, puts it, “investors need certainty in allocating billions of pounds of capital to low-carbon industries”. Nick Mabey, chief executive of E3G, was still confused: tearing up two decades of climate policy, he warned, “would be a threat to Britain’s security and competitiveness”.
Meanwhile, the Seventh Carbon Budget delivers what most of UK plc have been calling for, a long-term, evidence-based, science-led approach to moving the country towards a net-zero impact by 2050. The difficult question, as before, is whether the next delivery plan will meet the target’s desire, or whether the connection in less than five years will be defined in megawatts.
The Office for Budget Responsibility has been clear on the bottom line: the cost of climate damage is rising; the cost of transition is decreasing. For SMEs deciding whether to invest in solar, switch their cars to electric or move into a low-carbon supply chain, the Seventh Carbon Budget is the strongest signal yet that policy direction will not reverse.
