Achieve Compliance & Unlock Energy Savings

Energy Savings Opportunity Scheme (ESOS)

Make meeting your ESOS compliance as useful as possible to your organisation by working with Pilio to understand opportunities for your business to save energy and costs aligned with your wider sustainability strategy.

What is ESOS?

The Energy Savings Opportunity Scheme (ESOS) is a mandatory energy assessment scheme for large organisations in the UK. Established by the UK government to comply with the EU Energy Efficiency Directive, ESOS aims to improve energy efficiency and reduce carbon emissions across industries. Organisations covered by ESOS must conduct regular energy audits and identify cost-effective energy-saving measures.

Who Needs to Comply with ESOS?

ESOS applies to large UK organisations that meet at least one of the following criteria below. If your organisation meets these criteria, compliance with ESOS is legally required, and failure to comply can result in financial penalties.

Employ 250 or more people.

Annual turnover >£44 million

Annual balance sheet >£38 million

Part of a corporate group where 1 or more entities meet this criteria

Key Deadlines for ESOS Compliance

ESOS operates in phases, with each phase requiring eligible organisations to conduct an energy audit and report their compliance. The deadlines for the latest ESOS phase are:

6 December 2023–5 December 2027 – Compliance period for ESOS Phase 4.

Organisations must assess their total energy consumption, undertake an energy audit, and submit a report to the Environment Agency by the relevant deadline.

How Pilio Can Help Your Organisation Meet ESOS Compliance

We work with your organisation to understand your sustainability goals to ensure that your ESOS submission is aligned with your wider strategy. Our services include:

ESOS energy audits and reporting

Identification of energy-saving opportunities

Recommendations for long-term energy efficiency improvements

Support to meet additional regulatory requirements

Why Choose Pilio for ESOS Compliance?

Expert Guidance from Certified Assessors
Pilio’s team includes qualified ESOS Lead Assessors with deep expertise in energy efficiency, compliance, and sustainability. We ensure your organisation meets all ESOS requirements efficiently and effectively.

Beyond Compliance – Unlock Energy Savings
Our approach goes beyond simply meeting ESOS obligations. We identify cost-saving opportunities, helping you reduce energy consumption, lower operational costs, and enhance long-term sustainability.

Tailored, Hassle-Free Process
We streamline the ESOS compliance process, working closely with your team to collect and analyse data while minimising disruption to your operations.

Filling Data Gaps with the Best Methodologies
If your energy data is incomplete, Pilio can support you in filling gaps using the latest science-backed methodologies, ensuring accurate reporting and actionable insights.

Proven Track Record in Energy Management
With decades of experience in energy efficiency and sustainability consulting, Pilio has helped numerous organisations achieve compliance while improving their environmental performance.

Align ESOS with Your Net Zero Goals
ESOS compliance is an opportunity to build a long-term energy strategy. We help you integrate ESOS findings into your broader carbon reduction and net-zero initiatives.

Ensure ESOS compliance with confidence—partner with Pilio for expert insights and real energy savings.

​What is involved in ESOS?

  • Building energy surveys

  • Calculate total energy consumption

​The total energy consumption must be calculated over a reference period of 12 consecutive months and the reference period must include the qualification date and end before the compliance date. 

RESILIENCE & REPUTATION

INDUSTRY EXPERTISE

STAKEHOLDER ENGAGEMENT

ROBUST STRATEGY

ASSURANCE FOR GREEN CLAIMS

Other areas we can support your compliancy

  • Pilio provides expert SECR compliance support, ensuring accurate energy and carbon reporting while identifying opportunities for efficiency and cost savings. Our tailored approach simplifies the process, helps fill data gaps, and integrates SECR into your wider sustainability and net-zero strategy. Partner with us for seamless compliance that delivers real business and environmental impact.

  • How Pilio Can Support CSRD Compliance

    The Corporate Sustainability Reporting Directive (CSRD) requires businesses to disclose comprehensive sustainability information, including environmental, social, and governance (ESG) factors. Achieving compliance can be complex, but Pilio is here to simplify the process.

    Pilio offers expert support in data collection, reporting, and alignment with CSRD requirements. We help you ensure accurate disclosures, fill data gaps, and integrate sustainability into your broader strategy. With Pilio’s guidance, you can meet CSRD compliance while enhancing transparency, improving ESG practices, and boosting your sustainability credentials.

  • Why Choose Pilio for ISO 14064 Compliance

    ISO 14064 sets the standard for measuring, reporting, and verifying greenhouse gas (GHG) emissions, helping businesses ensure accurate carbon accounting and support global climate initiatives.

    Pilio offers expert guidance to help you effectively measure, manage, and reduce GHG emissions in compliance with ISO 14064. We deliver customised solutions that provide accurate carbon footprint assessments, clear reporting, and actionable strategies for emissions reduction. With Pilio, you can simplify ISO 14064 compliance, enhance sustainability efforts, and strengthen your environmental credibility.