How Manufacturers Can Reduce Energy Costs in 2026

Quick summary: How Manufacturers Can Reduce Energy Costs in 2026 comes down to understanding where energy is being wasted, improving operational control, managing peak demand and choosing the right supply contract for a more efficient manufacturing site.

Why manufacturing energy costs are rising in 2026

Manufacturers are entering 2026 with energy still sitting high on the list of operational pressures. Wholesale energy markets remain volatile, meaning the final bill a factory pays will depend on much more than the unit rate. Network charges, standing charges, non-commodity costs, taxes, levies, capacity needs and peak demand patterns all influence what the business actually pays. For manufacturers with long production hours, high electrical loads, and process heat requirements, even a small change in pence per kWh can translate into a significant annual cost.

The challenge is that manufacturing energy use is rarely simple. A site may have large base loads from refrigeration, compressors, motors, pumps, extraction, process heating, ovens, packaging lines, charging equipment and office areas. Some loads run constantly. Others spike sharply during start-up, changeovers or peak production. This means reducing energy costs in 2026 is not just about finding a cheaper tariff. It is about improving energy use across the site.

Note: UK industrial energy statistics are updated by the Department for Energy Security and Net Zero, while the government has confirmed Climate Change Levy rate changes from April 2026 and targeted electricity cost support for some energy-intensive businesses.

Where manufacturers lose the most energy

Energy loss often happens in places that have become normal over time. A compressor left on overnight, a heater running in an empty zone, a conveyor idling during breaks, or a production line warming up too early can all feel like part of the routine. The problem is that these habits are repeated daily, which means small losses become high annual costs.

A practical energy review should look at each major system and ask three questions. Is the energy needed? Is it efficient? Is it being used at the right time? This separates essential consumption from waste.

Motors and drives

Motors are among the most common energy users in manufacturing. They power pumps, fans, conveyors, mixers, compressors, machine tools and production equipment. Because motors often run for long hours, their lifetime energy cost can be much higher than their purchase cost. Oversized, poorly maintained or constantly running motors can waste energy every shift.

Compressed air systems

Compressed air is useful, flexible and often essential, but it is also one of the most expensive utilities on a manufacturing site. Leaks can be difficult to hear in a busy production environment, while poor pressure control, artificial demand, inappropriate use of air guns and compressors running during non-production periods can all spike bills.

Steam and process heating

Steam, ovens, furnaces, dryers, hot water systems, and process heating equipment can be major consumers of gas or electricity. Heat losses from uninsulated pipework, faulty steam traps, poor combustion control, open doors, poor zoning, and unnecessary warm-up periods all add to costs.

HVAC and lighting

Heating, ventilation, air conditioning and lighting may not always be the largest production loads, but they can be a significant source of waste. Poor setpoints, heating and cooling working against each other, excessive ventilation, old lighting and poor controls can increase consumption without improving comfort.

This table turns a broad issue into a practical checklist. Most sites will not need to tackle every area at once. The aim is to identify the biggest opportunities, prioritise quick action and build a larger plan.

Quick-win energy savings with little to no capital investment

The best starting point is often low-cost or no-cost work. These actions improve performance without waiting for a major budget cycle and help demonstrate to teams that energy reduction is practical, measurable and connected to daily operations.

Fixing compressed air leaks

Fixing compressed air leaks is one of the most common quick wins in manufacturing. A small leak may not appear urgent, but multiple leaks across a ring main, hose connection, valve, filter, regulator or tool line can force compressors to work harder all day.

Run a regular leak walkaround, record each leak, assign responsibility and confirm the repair. Ultrasonic surveys can find leaks that cannot be heard during production.

Eliminating non-production idle load

Idle load is the energy used when equipment is not producing value, and is also common in homes. This can include machinery left powered during breaks, extraction running after production ends, conveyors moving without product, lights on in empty areas and compressors running over the weekend.

A shutdown checklist can reduce this waste. It should be site-specific, simple for operators to follow and clear about what must stay on for safety, quality or process reasons. Try to remove energy use that has no operational purpose.

Optimising equipment schedules and setpoints

Many factories can reduce costs by adjusting schedules and setpoints. Start-up times may be too conservative, HVAC temperatures may be tighter than required, compressed air pressure may be too high, and process heaters may be held at temperature for longer than necessary. Reviewing these settings can unlock savings without affecting output.

Operator training on peak avoidance

Operators influence energy use every day. Training should explain which actions increase cost, how peak demand affects bills and what good practice looks like during normal shifts.

Motors, compressed air and steam system efficiency

Once quick wins are under control, manufacturers can focus on the systems that typically yield greater savings. Motors, compressed air and steam are high-priority areas because they often run for long periods and support critical production processes.

Installing Variable Frequency Drives (VFDs)

Variable Frequency Drives allow motor speed to match actual demand. This can be particularly valuable for pumps, fans and some process equipment. Instead of running at full speed and controlling flow through throttling or dampers, a VFD can reduce speed when demand falls.

The best candidates are motors with variable loads, long running hours and poor existing control. Before installing a VFD, manufacturers should check the process requirement, motor suitability and control strategy.

Ultrasonic leak detection surveys

Ultrasonic leak detection is a more structured approach to managing compressed-air waste. It allows teams to find leaks even in noisy production environments. The survey should identify the leak location, estimate severity, tag the issue and create a repair list. Remember, a survey only delivers value when repairs are completed, confirmed and repeated periodically.

Steam trap surveys and boiler tuning

Steam systems need regular attention because faults can be costly. Failed steam traps can waste energy, reduce system performance and affect condensate return. Poor boiler tuning can increase fuel use and emissions. Insulation gaps on pipework and valves can also create constant heat loss.

A steam trap survey, combustion check and insulation review can help identify practical improvements. Where steam demand varies, control strategies should also be reviewed.

Motor management plans

A motor management plan helps a manufacturer make better decisions about repair, replacement and standardisation. It should identify critical motors, efficiency ratings, running hours, spares strategy and replacement priorities. This avoids reactive decisions when a motor fails and helps the business choose efficient equipment when replacement makes financial sense.

HVAC and process heating optimisation

HVAC and process heating are often treated separately, but both need good control. The aim is to provide the right conditions for production, product quality, people and compliance without heating, cooling or ventilating more than necessary.

Setpoint and airflow optimisation

Setpoints should reflect real operational requirements. A production area may not need the same temperature as an office. A storage zone may not need continuous conditioning. Ventilation rates should be appropriate for safety and process needs, but excessive airflow can increase heating and fan energy use.

A review should check whether heating and cooling systems overlap. It should also confirm that sensors are accurate, controls are functioning, and time schedules align with actual occupancy and production.

Heat recovery systems

Manufacturing sites often reject heat from compressors, chillers, ovens, furnaces, dryers and process exhausts. Heat recovery can capture some of that energy and reuse it for space heating, preheating water, supporting process heat or warming incoming air.

The opportunity depends on the temperature, timing and location of waste heat. The strongest projects have a reliable heat source and a nearby heat demand.

Zoning by production area

Zoning helps avoid treating the whole site as one space. Different areas may have different operating hours, comfort needs, ventilation requirements and heat gains. By zoning production, storage, packing, offices and loading areas, manufacturers can control energy use more accurately.

Demand charge management and peak shaving

For many manufacturers, energy costs are not based solely on total consumption. Timing also matters. Peak demand can increase charges and reduce the benefit of otherwise efficient operations.

Understanding demand charges on industrial bills

Demand charges reflect the highest level of power required during a billing period or charging window. A site that starts several large loads at once may create a short spike that affects the bill. Manufacturers should review their bill structure and half-hourly data to understand when peaks occur and which processes cause them.

Load scheduling and load balancing

Load scheduling means planning when major equipment starts and runs. A site may be able to stagger compressors, ovens, chillers, charging equipment or production lines so they do not all reach peak load at the same time. Load balancing can also help spread demand more evenly across production periods.

This requires collaboration because energy teams cannot manage peaks alone if production planning does not support the change.

Time-of-use tariffs and thermal storage

Time-of-use tariffs reward sites that can shift consumption away from expensive periods. Not every manufacturer has flexible demand, but some can move non-critical processes, battery charging, water heating, chilling or preheating to lower-cost windows.

Thermal storage can help by producing heating or cooling at one time and using it later. This can be useful where process requirements are predictable.

Energy monitoring and submetering

Manufacturers cannot manage what they cannot see. A monthly bill shows what the business used, but not exactly where, when or why. Energy monitoring and submetering provide the visibility needed to make better decisions.

Tracking kWh per unit produced

A useful manufacturing energy metric is kWh per unit produced. This links energy consumption to output, which is more meaningful than looking at total energy use alone. If production increases, total energy may rise, but energy per unit may improve. If production falls and energy remains high, the site may have a high base load or poor shutdown practice.

Machine and line-level metering

Submetering can show which lines, machines or process areas use the most energy. This helps teams prioritise action based on evidence. For example, two similar lines may have different energy performance due to maintenance conditions, operating habits, or control settings.

Setting a baseline before making changes

Before making improvements, manufacturers should set a baseline. This shows current energy use and allows savings to be measured properly. A good baseline may include production output, operating hours, weather, product mix and process conditions. Without it, it is difficult to prove whether a project has worked.

Capital upgrades with the fastest payback

Capital upgrades should come after obvious waste has been addressed. Otherwise, the business may invest in new equipment that simply runs inefficiently. The strongest projects combine good engineering, clear data and realistic savings estimates.

Motor and drive replacements

Replacing inefficient motors or adding better drive control can offer a strong payback where running hours are high. The business case should consider energy savings, maintenance benefits, reliability and production risk. Critical motors should be reviewed so replacement can be planned rather than rushed after a failure.

On-site solar and battery storage

On-site solar can reduce grid electricity purchases, especially where daytime production matches solar generation. Battery storage may improve self-consumption, reduce peak demand or support time-of-use tariff optimisation. Roof condition, grid connection, load profile, export arrangements and contract structure all affect the financial case.

Building Energy Management System (BEMS) upgrades

A Building Energy Management System can improve control of HVAC, lighting, heating plant and some process support systems. A BEMS upgrade may be worthwhile where controls are outdated, schedules are wrong or equipment is manually overridden. Commissioning matters because a BEMS only saves energy if it is configured, maintained and reviewed.

Building an Energy Management Plan (ISO 50001)

Energy reduction should not depend on one person remembering to check everything. It needs a management process. ISO 50001 provides a recognised framework for continual improvement in energy performance, based on the same model used in standards such as ISO 9001 and ISO 14001.

Step 1. Baseline, quick wins and capital phase

A strong plan should begin with a baseline, then move through quick wins and capital projects. The baseline shows the current position. Quick wins prove progress. Capital projects deliver deeper savings where investment is justified.

This phased approach makes energy management more realistic by separating immediate action from longer-term planning.

Step 2. Assigning an energy champion

An energy champion gives the programme ownership. This person does not need to do everything alone, but they should coordinate data, actions, responsibilities and reporting. In larger sites, each department or production area may also need a representative.

The best energy champions work closely with production, maintenance, finance and procurement. Energy saving should support operational performance, not compete with it.

Step 3. Continuous improvement and annual audits

Energy management is never finished. Production changes, equipment ages, tariffs change, and new opportunities, such as AI integration, appear. Annual audits keep the plan current and prevent savings from fading as teams revert to old habits.

Choosing the right energy contract for manufacturers

Efficiency reduces the amount of energy used, but the contract determines how the remaining energy is bought. Manufacturers should review contract length, fixed versus flexible purchasing, pass-through charges, volume tolerance, billing accuracy and renewal timing.

The right contract depends on the site’s risk appetite, consumption profile and ability to shift demand. A predictable, high-volume site may need a different procurement approach from a site with seasonal or uncertain production.

Contract reviews should also check whether the business is paying the correct Climate Change Levy, whether exemptions or reliefs apply and whether meter data is accurate. From April 2026, government policy confirms that Climate Change Levy rates for electricity, gas and solid fuels will rise in line with the Retail Price Index, so manufacturers should ensure this cost is reflected in budgets.

How D-ENERGi can reduce manufacturing energy costs 

D-ENERGi can support manufacturers by helping them understand both sides of the energy cost challenge, including how energy is purchased and how it is used. For manufacturing sites, this means reviewing energy contracts, consumption patterns, billing information and opportunities to improve efficiency. 

Support can include reviewing half-hourly data, helping businesses understand peak demand, tailoring electricity and half-hourly electricity contract options to their usage and highlighting where operational changes may reduce costs.For manufacturers planning ahead in 2026, this joined-up approach can make energy decisions clearer.

Conclusion

Reducing manufacturing energy costs in 2026 requires more than one action. A cheaper contract can help, but it will not fix compressed air leaks, unnecessary idle load, poor controls or peak demand spikes. Equally, efficiency projects can reduce consumption, but manufacturers still need the right contract and billing structure for the energy they continue to use.

The best approach is practical and layered. Start with visibility. Find out where energy is used, when peaks occur and which systems are wasting energy. Then act on quick wins such as leaks, shutdown routines, setpoints and operator training. After that, build a plan for larger improvements such as VFDs, heat recovery, submetering, BEMS upgrades, solar and battery storage.

Manufacturers that take energy seriously in 2026 can reduce waste, improve resilience and protect margins. The businesses that make the most progress will treat energy as a controllable production cost, not just a monthly bill.

For more insights into business energy, visit our blog today. 

Frequently Asked Questions (FAQs)

How can manufacturers reduce energy costs quickly?

Manufacturers can reduce costs quickly by fixing compressed air leaks, switching off non-essential equipment outside production hours, reviewing setpoints, staggering large loads and training operators to avoid unnecessary peak demand. These actions are often low-cost and can be started before major investment is approved.

What uses the most energy in a manufacturing plant?

The largest energy users depend on the type of manufacturing, but common high-consumption areas include motors, compressed air, process heating, steam systems, refrigeration, HVAC, lighting and production machinery. The best way to identify the biggest users is through metering, submetering and analysis of half-hourly data.

How much can compressed air leaks cost a factory each year?

The cost depends on leak size, pressure, operating hours and electricity price. A single small leak may seem minor, but multiple leaks across a factory can be expensive because compressors have to work harder to maintain pressure. Regular leak detection and repair is one of the most reliable energy-saving actions for manufacturing sites.

Is ISO 50001 certification worth it for manufacturers?

ISO 50001 can be worth it for manufacturers that want a structured, recognised approach to energy management. It helps the business set a baseline, monitor performance, assign responsibility and improve energy use over time. Certification may also support customer expectations, sustainability reporting and internal governance.

What are demand charges and how can manufacturers reduce them?

Demand charges are costs associated with the highest level of power a site needs during a billing period. Manufacturers can reduce them by identifying peak-demand events, staggering equipment start-ups, balancing loads, shifting flexible processes, and considering battery or thermal storage where suitable.

How long does it take to see savings from energy efficiency upgrades?

Some savings can appear quickly, especially from leak repairs, shutdown routines and setpoint changes. Larger projects such as VFDs, heat recovery, BEMS upgrades, solar or battery storage take longer because they need design, approval, installation and commissioning. A baseline should be set before changes are made so savings can be measured properly.