Why Manufacturing’s Biggest Energy Costs Are Also Its Most Overlooked

Most executives running manufacturing operations have a mental list of where operating risk lives: supply disruption, labour costs, input price swings. Energy consumption rarely makes that list as a strategic priority, despite manufacturing being one of the most energy-intensive sectors in the UK economy. Cooling plants are a good example of where that oversight tends to sit.

Two forces are converging on manufacturers’ energy costs at once: prices that have stayed elevated since 2021, and a regulatory environment that’s tightening compliance obligations while simultaneously withdrawing a funding route that used to help offset the bill.

A Compliance Deadline That’s Already Here

The UK’s Energy Savings Opportunity Scheme, known as ESOS, requires large UK organisations to audit and report on their total energy use across buildings, transport and industrial processes. Phase 4 of the scheme runs through to a compliance deadline of 5 December 2027, with the qualification snapshot taken on 31 December 2026, so this isn’t a future problem for eligible manufacturers; it’s a near-term filing obligation.

According to the UK government’s own guidance, the scheme has already delivered estimated annual efficiency savings of 1.65 TWh from buildings, 1.51 TWh from industrial processes, and 0.52 TWh from fuel efficiency measures across participants. Further changes to the scheme are expected to save participants an estimated £1.12 billion in energy bills between 2024 and 2037.

The government’s figures don’t break this down by specific plant type, but industrial processes are the category cooling systems fall under, so an ESOS audit is likely to capture a site’s cooling load as part of its total energy review.

Savings on that scale, achieved through a scheme built entirely around mandatory audits, suggest energy use in manufacturing tends to go unexamined until an audit requires it. That’s not something the government’s figures state directly, but it’s a reasonable reading of what a compliance-driven scheme has delivered.

The Funding Safety Net Just Disappeared

Until recently, manufacturers weighing up an energy efficiency upgrade had a partial hedge against the capital outlay: the Industrial Energy Transformation Fund, a government grant scheme that had supported industrial energy efficiency and decarbonisation projects since 2020. The published figures don’t break funded projects down by equipment type, but cooling upgrades sit squarely within the fund’s stated scope.

That changed in mid-2025. According to the UK government’s own published collection page, the fund will not be extended further, and no successor scheme is planned; all currently funded projects are being honoured through to completion, but the door is now closed to new applicants

That’s a meaningful shift in the executive calculation. Any manufacturer that hadn’t already locked in support is now looking at a fully self-funded or commercially financed business case for efficiency upgrades, at the same time energy prices remain elevated and ESOS compliance obligations are getting stricter, not looser. A cost that used to be partly underwritten by government is now sitting entirely on the manufacturer’s own balance sheet, with no change to the underlying pressure to act.

The Case That’s Easy to Miss Until Someone Points It Out

Cooling is a useful lens on this. Owen Crawford, Sales & Project Director at Direct Cooling Solutions, sees it as one of the largest single energy loads on a typical industrial site, and one where the underlying economics have shifted regardless of the funding picture:

“The manufacturing sector has historically underinvested in cooling infrastructure relative to the role it plays in energy consumption and production continuity. With energy costs unlikely to return to pre-2021 levels and regulatory obligations only increasing, we would expect to see a sustained increase in capital expenditure on cooling efficiency over the next three to five years.”

That’s a direct description of the pattern this piece is about: a major cost sitting largely unexamined until a compliance deadline, an energy bill, or a specialist points it out. Crawford also points to a widening gap between manufacturers who act early and those who wait: “The businesses that move early will be better positioned competitively, not just in terms of operating costs but in their ability to meet the sustainability reporting requirements that are increasingly being demanded by customers and supply chain partners.”

The Executive Takeaway

None of this requires a dramatic capital program to start paying attention to. It requires treating energy consumption, cooling plants specifically included, the way most executives already treat any other material cost line: something to be measured, benchmarked, and reviewed on a schedule, not left running quietly in the background until an ESOS deadline or an energy bill forces the issue.

With one of the main funding cushions now gone and mandatory reporting obligations on a fixed timetable, the manufacturers reviewing their energy exposure now are the ones giving themselves the most room to act on their own terms, rather than being forced into it by a filing deadline.

Photo by Crystal Kwok on Unsplash