Conservative diesel HGV phase-out U-turn puts freight decarbonisation at risk
The Conservative Party’s decision to scrap the planned phase-out of new diesel HGVs represents a significant reversal of a policy it introduced when it was in government – and raises fresh questions over the future direction of UK road freight decarbonisation.
Announced on 19 August, the Conservatives said they would abandon the planned end-of-sale dates for new non-zero-emission HGVs if they return to government. The announcement follows Conservative leader Kemi Badenoch’s wider policy shift away from the UK’s legally binding 2050 net zero target.
The party argues that the transition is imposing unacceptable costs on hauliers and consumers, while the technology and infrastructure required for zero-emission HGVs are not yet sufficiently mature.
Shadow transport secretary Richard Holden said pressing ahead with the HGV targets would increase transport costs by almost a fifth.
“Labour is spending £877m of taxpayers’ money chasing targets they plainly cannot meet.
“Their blinkered eco zealotry risks imposing huge costs on hauliers operating on wafer-thin margins, which will ultimately be paid by families at the checkout.”
The £877m figure refers to government funding for the Zero Emission Truck and Van Grant, which is designed to reduce the purchase price of zero-emission trucks and vans. The scheme can provide up to £81,000 towards some of the heaviest zero-emission trucks, while the Government has also expanded support for depot charging infrastructure.
Why are the Conservatives changing course?
There is a straightforward political and economic argument behind the Conservative position. Haulage is a low-margin business, with operators facing high vehicle acquisition costs, fuel bills, wages, insurance, maintenance and infrastructure costs.
The Conservative argument is that forcing operators towards more expensive zero-emission trucks before the technology is commercially ready will increase the cost of moving goods, ultimately feeding through into food and other consumer prices.
There is some substance to the concern over upfront costs. The Government’s own 2026 HGV regulatory consultation acknowledged that the zero-emission HGV market is less mature than the car and van market and that new zero-emission models remain two to three times the price of diesel equivalents. Infrastructure, particularly depot electricity connections and charging, is another major barrier.
The problem is that purchase price is only one part of the equation.
The Conservative retreat also has to be viewed against the party’s broader reassessment of net zero. Badenoch is increasingly presenting climate policy through the lens of affordability, energy security and economic competitiveness, arguing that targets should not drive up costs for households and businesses.
That represents a fundamental change in direction. The 2050 net zero target was made legally binding by a Conservative government in 2019, following advice from the independent Climate Change Committee.
The HGV phase-out was similarly introduced by a Conservative government at COP26 in 2021. It established a 2035 end-of-sale date for new non-zero-emission HGVs weighing up to 26 tonnes, followed by a 2040 phase-out covering all new HGVs.
In other words, the Conservatives are now retreating from two major climate policies that they themselves established.
Does an electric HGV really cost more to run?
This is where the Conservative argument requires greater qualification.
There is no doubt that an electric HGV can cost substantially more to purchase. However, it does not automatically follow that it costs more to own and operate over its lifetime.
The Department for Transport said in June that total cost of ownership for zero-emission HGVs is expected to fall as vehicle prices decline and battery energy density improves. It also said battery-electric HGVs are projected to become cheaper to operate than diesel across many duty cycles.
Research from the government-backed Zero Emission HGV and Infrastructure Demonstrator programme has reached a similar conclusion. Logistics UK reported that a total-cost-of-ownership calculator developed through the Electric Freightway project found electric HGVs could achieve cost parity with diesel equivalents after around five years under certain operating conditions.
EnergyUK’s analysis also demonstrates why the answer depends heavily on how a truck is operated and charged. Its modelling found an electric HGV could have a higher lifetime cost than diesel where charging is split between depot and expensive rapid charging, but an all-depot charging model could make the electric truck considerably cheaper.
That is the critical point. The economics of an electric HGV are highly dependent on mileage, duty cycle, electricity prices, charging strategy, vehicle utilisation, financing and infrastructure costs.
So the claim that electric HGVs simply cost more to own and run than diesel is too broad. The more accurate conclusion is that electric HGVs can cost considerably more to buy, while their lower energy and maintenance costs can offset that premium over time – but not necessarily for every operation today.
What does the U-turn mean for decarbonisation?
The immediate impact would be limited because the proposed phase-out applies to new HGV sales. Existing diesel trucks would not suddenly become illegal and would continue operating.
The longer-term consequences could nevertheless be significant.
HGVs account for around 16-17% of UK domestic transport greenhouse gas emissions, despite representing only about 1% of licensed road vehicles. The latest Government figures put HGV emissions at 18.2 million tonnes of CO2e in 2023.
Allowing new diesel trucks to continue indefinitely would therefore leave one of the UK’s largest sources of transport emissions without a clear end point.
There is also a wider investment issue. The Government’s original argument for phase-out dates was not simply that every HGV would immediately be capable of switching from diesel to batteries. It was that clear long-term policy would give manufacturers, energy companies and operators the confidence to invest in vehicles, charging and production capacity. The 2021 consultation response specifically highlighted regulatory certainty as a reason for establishing the dates.
Scrapping those dates could therefore become a self-fulfilling problem: if operators believe diesel will remain available indefinitely, demand for zero-emission HGVs may weaken; if demand weakens, manufacturers and infrastructure providers have less incentive to invest; and if investment slows, the technology may take longer to become affordable and commercially viable.
Industry wants realism, not delay
The Road Haulage Association’s response is therefore significant.
Richard Smith, RHA managing director, said: “Reducing emissions from HGV, coach and van fleets is one of the defining technical and economic challenges facing our industry.”
He added that operators need reliability, range, payload and flexibility, but argued that the transition must be “practical, affordable and commercially viable”.
The RHA’s position is not simply a demand for faster electrification. It is calling for a multi-energy approach encompassing electrification, sustainable biofuels, other low-carbon fuels and hydrogen according to operational requirements.
That is arguably a more credible position than either extreme of the current political debate.
Voltempo CEO Simon Smith, meanwhile, takes a more bullish view of electric HGV economics, arguing: “The economics of electric HGVs are already becoming more compelling.”
He said electric HGVs can deliver lower and more predictable operating costs, adding that hauliers need consistent policy rather than necessarily more government funding.
A political retreat with commercial consequences
The Conservative case for flexibility should not be dismissed. Heavy trucks are harder to decarbonise than cars, and the commercial consequences of getting the transition wrong could be substantial. Charging infrastructure, grid capacity, payload, range and vehicle costs remain genuine challenges, particularly for long-distance and specialist operations.
But abandoning the end date for diesel HGVs is a very different proposition from making the transition more flexible.
The stronger policy would be to recognise that different HGV operations require different technologies while maintaining a clear long-term direction. That could include battery electric for urban and regional operations, hydrogen for appropriate long-distance applications and sustainable low-carbon fuels where electrification is currently impractical.
The Conservatives are right that forcing hauliers to buy unsuitable or uneconomic vehicles would be counterproductive. But removing the destination altogether risks making the journey even harder.
For an industry that plans vehicle investments years in advance, certainty matters. The biggest danger of the Conservative U-turn may therefore not be that diesel HGVs suddenly become cheaper or more expensive, but that the UK loses the investment momentum needed to make zero-emission freight commercially viable.
And if the Conservatives also abandon the 2050 net zero target, this latest announcement looks less like a targeted adjustment to HGV policy and more like part of a fundamental retreat from the UK’s previous decarbonisation strategy.
