ESOS Compliance Support from PJW Meters

Helping businesses turn ESOS compliance into measurable energy savings

The Energy Savings Opportunity Scheme (ESOS), requires qualifying UK organisations to assess their energy use, identify savings opportunities and report progress against energy-saving actions. Phase 3 action plan progress updates are due on 5 December 2025 and 5 December 2026, with Phase 4 compliance due by 5 December 2027. (GOV.UK⁠)

At PJW Meters, we help businesses move beyond “tick-box” compliance by giving them the data, metering infrastructure, monitoring systems and control solutions needed to understand, reduce and manage energy consumption across their buildings, sites and operations.

How PJW Meters supports ESOS responsibilities

ESOS is built around identifying energy-saving opportunities. The challenge for many businesses is proving where energy is being used, where waste is happening and what improvements are actually working.

PJW Meters supports this through:

Electricity, gas, water, heat and LPG metering
Smart submetering for departments, tenants, buildings and equipment
Remote monitoring and AMR data collection
Energy dashboards and usage reporting
Controls, automation and smart building solutions
Support for energy audits, action plans and ongoing progress reporting
Tenant and departmental recharging systems

By collecting accurate site-level and circuit-level data, businesses can make better decisions, demonstrate progress and support their ESOS action plan with real evidence.

Metering and monitoring: the foundation of energy management

You cannot manage what you cannot measure.

PJW Meters supplies and installs smart metering and submetering systems that allow businesses to break down energy use by area, process, tenant, building or item of equipment.

This helps identify:

Out-of-hours energy waste
High-consuming equipment
Inefficient HVAC, lighting or plant operation
Tenant or departmental usage patterns
Leaks, abnormal consumption and billing inaccuracies
Opportunities for automation, controls and behavioural change

Controls and automation for real savings

Once energy use is visible, the next step is control.

Through PJW Meters, ELKO EP UK, INELS UK and Montis Energy Group, we can support businesses with practical control and automation solutions that reduce unnecessary energy consumption.

Typical solutions include:

Lighting controls and occupancy sensors
Timers, relays and automation devices
HVAC control improvements
Smart building automation
Guest room energy management for hotels and care environments
Plant, equipment and circuit monitoring
Alerts for abnormal usage or system faults

These improvements can reduce waste, improve comfort, extend equipment life and support long-term energy reduction targets.

Cost savings and operational benefits

A well-designed metering and monitoring system can deliver benefits far beyond ESOS compliance.

Businesses can achieve:

Reduced energy bills through better visibility and control
More accurate tenant or departmental recharging
Improved budgeting and forecasting
Faster identification of waste, faults and abnormal usage
Better maintenance planning
Lower carbon emissions
Stronger ESG and sustainability reporting
Improved operational performance
Evidence-based decision making for future investment

For landlords, leisure operators, manufacturers, hospitality venues and multi-site businesses, even small percentage savings can make a major difference when applied across multiple buildings, tenants or energy-intensive processes.

Supporting ESOS action plans and progress reporting

ESOS now places greater emphasis on action plans and annual progress updates, rather than simply identifying savings opportunities. Organisations must report progress against their action plan commitments in the years following submission. (GOV.UK⁠)

PJW Meters can help businesses gather the data needed to:

Evidence completed energy-saving actions
Track performance before and after improvements
Measure consumption reductions
Prioritise future investment
Support board-level reporting
Prepare for future ESOS phases

Our solutions provide the practical infrastructure needed to turn recommendations into measurable results.

Who we support

PJW Meters works with a wide range of commercial, industrial and multi-occupancy environments, including:

Commercial landlords
Industrial and manufacturing sites
Warehouses and logistics facilities
Hotels, hospitality and care settings
Holiday parks and leisure businesses
Schools and academies
Multi-site operators
Offices and mixed-use developments
Facilities management providers
Mechanical and electrical contractors

Whether you need a full site monitoring strategy or targeted metering for a specific area, PJW Meters can help design a practical solution.

Why choose PJW Meters?

PJW Meters has decades of experience in metering, submetering and energy management solutions.

We combine product knowledge, technical support, installation experience and practical energy insight to help businesses manage their utilities more effectively.

Our support includes:

Site surveys and system design
Metering and monitoring specification
Supply of meters, panels and control products
Installation and commissioning
Remote monitoring solutions
Tenant billing and recharging support
Ongoing technical guidance
Integration with wider energy management strategies

Prepare for ESOS. Reduce costs. Take control.

ESOS should not just be another compliance deadline. With the right metering, monitoring and controls in place, it becomes an opportunity to reduce waste, improve performance and build a stronger long-term energy strategy.

Speak to PJW Meters about how we can support your ESOS responsibilities and help your business turn energy data into measurable savings.

Call: 01626 368595
Email: sales@pjwmeters.com
Website: www.pjwmeters.com

PJW Meters – Full Spectrum Energy Management Solutions

What is an ESOS qualifying business?

An organisation qualifies for ESOS (Energy Savings Opportunity Scheme) if, on the qualification date, it is a large undertaking or is part of a corporate group that contains at least one large undertaking.

A business qualifies if it meets

one or more

of the following criteria:

It employs

250 or more people

This includes full-time and part-time employees (calculated as full-time equivalents in certain circumstances).

It has BOTH:

An annual turnover of more than €50 million (approximately £43–45 million, depending on exchange rates), and
An annual balance sheet total of more than €43 million (approximately £37–39 million).

Meeting only one of these financial thresholds is not enough—both must be exceeded if the business has fewer than 250 employees.

Group companies

If your company is part of a corporate group, the assessment is based on the entire group, not just an individual subsidiary.

For example:

A manufacturing company with 80 employees may still qualify if its parent company employs 1,000 people.
Likewise, multiple smaller businesses within a group may collectively fall within ESOS.

What energy must be assessed?

Qualifying organisations must assess at least 95% of their total energy consumption, including:

Electricity
Natural gas
LPG and other fuels
Heating fuels
Transport fuel (company vehicles, fleet, business travel where applicable)
Energy used across buildings, industrial processes and transport

This is where comprehensive metering becomes invaluable, allowing businesses to separate consumption by:

Building
Department
Production line
Tenant
Equipment
Process
Site

What must businesses do?

Qualifying organisations must:

Measure and calculate their total energy consumption.
Identify areas of significant energy use.
Carry out energy assessments (or use compliant alternatives such as ISO 50001 where applicable).
Produce an ESOS assessment signed off by a qualified lead assessor.
Submit the required notification and, under the current rules, prepare and report on an action plan with annual progress updates.

How PJW Meters helps

While PJW Meters does not replace an ESOS Lead Assessor, we provide the infrastructure that makes compliance far easier and far more valuable.

Our metering, monitoring and automation solutions help organisations:

Measure the required 95% of energy consumption accurately.
Identify significant energy users.
Establish baselines before improvement projects.
Demonstrate measurable savings after implementing recommendations.
Produce robust evidence for ESOS action plans and annual progress reporting.
Continue reducing costs long after the compliance exercise has finished.

This shifts ESOS from being a periodic compliance requirement to an ongoing energy management strategy that delivers lasting operational and financial benefits.

For many organisations, the cost of installing smart metering and monitoring is quickly offset by the energy savings identified once consumption becomes visible and actionable.