Air Compressors in the Energy Sector

J Ll Leach is supporting the UK energy sector with reliable Atlas Copco air compressors, supplied and installed from our Stoke, Birmingham and Shrewsbury branches.

UK energy infrastructure needs compressed air for much more than just blowing a whistle.

It’s vital for critical plant operations, such as running control systems on nuclear facilities, safely purging gas pipelines, or powering pneumatic tools in hazardous environments. These compressed air systems have a direct impact on the safety, uptime, and compliance of the company.

What is the difference between compressed air and utilities like electricity or water? The energy sector typically generates it on-site. As a result, energy companies have full accountability for the dependability, cost, and purity of their compressed air.

This guide outlines the requirements for air compressors in the energy sector, providing guidance to project engineers, plant managers, and compliance managers on selecting systems that meet the most demanding needs.

Based in Stoke-on-Trent and operating across the Midlands energy corridor, J Ll Leach combines national capabilities with unmatched local responsiveness, supporting the region’s entire spectrum from fossil fuel decommissioning to cutting-edge renewables and power generation.

The Non-Negotiable Demands of Energy Sector Operations

Compressed air infrastructure in the energy industry must operate under a unique set of pressures that far exceed those of general industrial settings.

Unwavering Reliability

Energy infrastructure doesn’t take a lunch break or shut down for the holidays. Unexpected outages are not merely an inconvenience; they pose a direct threat to national energy security and incur enormous financial costs.

Compressor systems must be designed for total reliability and include strong service and contingency plans to handle continuous air demand.

Stringent Safety & Regulatory Compliance

Compressor systems operate in the most demanding, hazardous, and often explosive environments. They are subject to a multitude of regulations, including the Pressure Systems Safety Regulations 2000 (PSSR) and ATEX directives for explosive atmospheres.

Non-compliance can have catastrophic consequences, as well as severe legal repercussions.

Driving Operational Efficiency

Total energy consumption can account for up to 76% of a compressor’s lifecycle cost. With operational expenditure (OPEX) under constant scrutiny, improving the energy efficiency of this fourth utility is a primary objective for reducing costs and energy wastage.

Supporting Decarbonisation & Net-Zero Goals

In a decarbonising world, all elements of the energy system are being considered for their environmental impact. Energy-efficient air compressor technology and heat recovery systems can play an essential role in reducing an asset’s carbon footprint and lowering emission levels.

Mission-Critical Applications & Tailored Compressor Solutions

Compressed air plays a variety of distinct roles throughout the energy sector. Understanding the role of air compressors for the application is key to risk mitigation.

Conventional & Nuclear Power

Clean, dry, and reliable instrument air is the nervous system of a power plant. It powers actuators, instrumentation systems and control valves that regulate everything from fuel flow to steam pressure. Failure of an instrument air system in a nuclear plant can trigger shutdown procedures, resulting in hundreds of thousands of dollars in downtime.

Use Case: Safety-critical instrument air for reactor shutdown systems. Contamination poses a severe severe safety risk, requiring high-quality air.
Solution: Atlas Copco ZT/ZR oil-free screw and centrifugal compressors, which guarantee 100% oil-free air certified to ISO 8573-1 Class 0. This is supported by regular air quality testing to ensure compliance.

Onshore Oil & Gas Operations

In the compressed air for gas industry, systems must provide a safe and robust power source for tools and processes where flammable gases may be present. This also applies to emerging needs for air compressors for hydrogen applications and carbon capture technologies.

Use Case: cleaning and “pigging”, inert gas purging, or powering heavy-duty pneumatic equipment.
Solution: Fully ATEX-certified compressors, in conjunction with on-site Nitrogen Generators, provide a safe, cost-effective, and reliable source of inert gas for purging, blanketing, and air pressure maintenance.

Renewables & Energy Storage

The manufacturing of renewable energy components and the development of grid-scale storage require high-purity, ISO 8573-1 Class 0 clean air to minimise defects.

Use Case: Emerging applications like Compressed Air Energy Storage (CAES) at very high pressures. CAES requires multi-stage, high-pressure compression to achieve energy storage. J Ll Leach supplies and services booster packages to meet the unique thermodynamic requirements of either diabatic, adiabatic, or isothermal CAES.
Solution: Multi-stage Compressed Air Boosters capable of achieving the very high pressures needed for energy production and grid-scale energy storage.

Engineered for Performance: Atlas Copco Technology

As a Premier Distributor for Atlas Copco Air Compressors, J Ll Leach provides access to market-leading technology designed to meet the energy sector’s core demands. We supply various types of air compressors suited for specific energy generation needs.

Variable Speed Drive (VSD) Compressors: Atlas Copco’s GA VSD+ compressors precisely match air generation to fluctuating plant demand.
Benefits of VSD Technology:
Match air supply to demand in real time
Reduce power consumption by up to 50%
Avoid costly part-load inefficiencies
Oil-Free Technology: For applications where air purity is non-negotiable, ZT/ZR and scroll/screw compressors deliver ISO 8573-1 Class 0 air, eliminating any risk of oil contamination.
Energy Recovery Systems: Capture up to 94% of the electrical energy used in compression (heat generated) and convert it into hot water for processes or space heating. These energy recovery solutions for air compressors transform a significant energy cost into a valuable, free resource to further optimize energy use.

SMARTLINK Remote Monitoring: This IoT platform provides real-time data on compressor health, enabling predictive maintenance that addresses issues before they cause downtime.
Centralised Controller Systems: For facilities with multiple compressors, advanced controllers orchestrate the entire system to run at peak efficiency, preventing inefficient part-load operation and balancing workloads.

A Lifecycle Framework for Risk & Compliance Management

We provide a complete service framework that addresses the primary risks faced by industrial compressors in energy sector operators.

Ensuring Uptime: In the event of a site failure, our emergency response and hire team will have you up and running as quickly as possible – reducing downtime. Predictive and proactive maintenance regimes utilise sophisticated condition monitoring techniques, including vibration and thermal analysis, to prevent failures.

Mastering PSSR 2000 & ATEX Compliance: We can assist with complete compliance with the Pressure Systems Safety Regulations 2000. This includes creating the Written Scheme of Examination (WSE), a legal requirement before any pressure system can be operated, and conducting inspections via a certified ‘Competent Person’.
Guaranteeing Air Purity: A complete portfolio of air treatment equipment (dryers, filters) achieves any required level of air purity. We provide on-site air quality testing to certify that the compressed air meets the stringent requirements of ISO 8573-1.

The J Ll Leach Advantage: Premier Technology, All-Brand Expertise

Facilities want to have confidence in their power equipment and in their service partner. That’s why our hybrid model gives you the best of both. Get the technological innovation and product expertise that comes from working with one of Atlas Copco’s premier partnerships. Add the customer-centric flexibility and problem-solving agility of an independent, all-brand specialist.

The result is a simplified approach to maintenance, reduced administrative overhead, and total visibility into system health, regardless of the air compressor manufacturers installed. No more choosing between OEM-specific service or the convenience of an independent specialist. Just one expert partner for your entire compressed air system.

Frequently Asked Questions

I need an air compressor for hydrogen or biogas. What should I use?

Oil-free screw or centrifugal compressors with Class 0 certification are recommended where there is any possibility of air coming into contact with reactive gases, as they eliminate the risk of oil contamination. This ensures the safety of the process air and prevents hazardous reactions.

How can I use compressed air to help achieve ESOS or ISO 50001?

SMARTLINK remote monitoring, combined with VSD compressors and energy recovery units, will provide you with evidence and verifiable data to demonstrate a significant reduction in energy usage. Conducting an energy audit with J Ll Leach can also identify costly air leaks and opportunities to enhance energy efficiency, which can be used for compliance audits and achieving sustainability targets.

We have several different brands of compressors at our site. Can you support all of them?

Yes, J Ll Leach provides full multi-brand servicing, system audits, and hire support for any make of compressor, irrespective of the OEM. Our single-source service simplifies maintenance programs and allows us to view your entire compressed air system as a whole.

To learn more about how to Reduce Air Compressor Costs and improve system performance when choosing an air compressor, take the next step.

Book a free site visit to uncover quick wins and energy savings.
Ask for a PSSR review to confirm your system is compliant with its legal requirements.