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Streamlined Energy Carbon Reporting (SECR) Regulations

Posted by: Aishwaryaa Shashi Date: 06 Mar 2025

As climate regulations tighten globally, the UK’s Streamlined Energy and Carbon Reporting (SECR) framework enhances corporate transparency on carbon emissions. SECR mandates large businesses to disclose energy use, promoting accountability and sustainability. In this blog post, I explain what SECR is and how it benefits your business.


As the impacts of the climate crisis escalate, carbon legislation is emerging as a key regulatory instrument for governments worldwide. Companies are facing increased scrutiny regarding their greenhouse gas (GHG) emissions and sustainability practices. From the EU’s Carbon Border Adjustment Mechanism (CBAM) to the United States’ proposed SEC climate disclosure rules, carbon reporting frameworks are evolving rapidly though their future may depend on political shifts.

The UK is also enhancing its carbon reporting landscape through the Streamlined Energy and Carbon Reporting (SECR) regulation which require large businesses to disclose their energy use and carbon emissions, promoting greater transparency and accountability. Here’s a look at how SECR has been developed in the UK.

What is Streamlined Energy and Carbon Reporting (SECR)?

The Streamlined Energy and Carbon Reporting (SECR) regulations are the UK’s approach to increasing corporate transparency on environmental impact. Introduced under the Companies (Directors’ Report) and Limited Liability Partnerships (Energy and Carbon Report) Regulations 2018, it became mandatory from 1 April 2019 for financial reporting periods starting on or after this date.

SECR requires eligible large companies to disclose their energy use and carbon emissions in their annual reports, fostering accountability and driving sustainability improvements. By making this information publicly available, businesses demonstrate their commitment to reducing their carbon footprint and improving energy efficiency.

How SECR Supports Corporate Sustainability

SECR plays a key role in corporate sustainability by aligning with several key frameworks:

  • Supports the UK’s net zero goals
  • Aligns with the Task Force on Climate-related Financial Disclosures (TCFD)
  • Integrates with the Companies Act 2006
  • Follows Greenhouse Gas (GHG) Protocol

Benefits of SECR

  • Streamlines the process of collecting and calculating emissions data across all activities.
  • Provides detailed insights into energy consumption and GHG emissions to improve energy efficiency.
  • Transparent SECR reporting helps demonstrate a commitment to sustainability and corporate responsibility.
  • Prepares for future global regulations.
  • Cost-effective solution compared to complex individual assessments.


What to report under SECR?

 Quoted* Companies (listed on LSE1, EEA2, or NYSE3)

No size threshold – all quoted companies must report the following:

  • Global GHG emissions (Scope 1, 2 and optional Scope 3)
  • Total global energy use
  • Energy efficiency actions taken
  • At least one intensity ratio
  • Methodology used

Large Unquoted* Companies (UK registered)

Companies consuming ≤40 MWh in a reporting year are exempt. Otherwise, if the company meets two of the following criteria:

  • Turnover: ≥ £36 million
  • Balance sheet total: ≥ £18 million
  • Employees: ≥ 250

Their reporting requirements are:

  • UK only GHG emissions (Scope 1, 2 and optional Scope 3)
  • Total UK energy use
  • Energy efficiency actions taken
  • At least one intensity ratio
  • Methodology used

Large LLPs* (Limited Liability Partnerships)

Companies consuming ≤40 MWh in a reporting year are exempt. Otherwise, if the company meets two of the following criteria:

  • Turnover: ≥ £36 million
  • Balance sheet total: ≥ £18 million
  • Employees: ≥ 250

Their reporting requirements are:

  • UK-only GHG emissions (Scope 1, 2 and optional Scope 3)
  • Total UK energy use
  • Energy efficiency actions taken
  • At least one intensity ratio
  • Methodology used

Small & Medium Enterprises (SMEs)

If the company meets two of the following criteria, they are not required to report but can do so voluntarily.

  • Turnover: < £36 million
  • Balance sheet total: < £18 million
  • Employees: < 250

*Mandatory Reporting, 1. LSE: London Stock Exchange, 2. EEA: European Economic Area, 3. NYSE: New York Stock Exchange

How TÜV SÜD can help you meet SECR compliance

At TÜV SÜD, we provide two key services to help you comply with SECR requirements:

  1. SECR Compliance Readiness
  2. Verification of SECR reports

1. SECR Compliance Readiness

Step 1: Energy and carbon data collection

For unquoted companies and LLPs, we focus on UK-only energy use, while quoted companies must report their annual consumption.

Step 2: Emissions calculations (Scopes 1, 2 & Optional Scope 3)

We ensure that emissions calculations align with Defra emissions conversion factors, maintaining accuracy and comparability with industry standards.

Step 3: Energy efficiency assessment

SECR does not require companies to conduct energy audits for compliance.

Companies must provide a narrative description of energy efficiency actions, and our team ensures this meets SECR compliance requirements.

Step 4: Streamlined SECR reporting & compliance support

A complete SECR report, with the intensity ratios and impact categories requested by the customer.

We assist enabling easy integration of SECR reporting into your annual reports and financial statements.

2. Verification of SECR reports (environmental information only)

An assurance service from TÜV SÜD highlighting the intensity ratios, impact categories and underlying GHG inventory.

TÜV SÜD will conduct independent verification activities in alignment with ISO 14064-3. This will involve verifying the customers’ SECR report on the accuracy, completeness and consistency of energy use, GHG emissions data and energy efficiency action.

Why Choose TÜV SÜD?

  • Independent global experts
  • Comprehensive experience in sustainability and compliance
  • Tailored solutions for your business needs
  • Trust and reliability
  • Maximised value through sustainability integration

TÜV SÜD provides tailored carbon footprint solutions, focusing on Product Carbon Footprint (PCF) and Corporate Carbon Footprint (CCF) assessments. For a comprehensive environmental impact assessment, we provide Life Cycle Assessment (LCA) to systematically evaluate the environmental footprint of products at every stage of their life cycle—from raw material extraction to end-of-life disposal. Our expertise helps businesses measure, reduce, and verify their emissions across the value chain, ensuring compliance with global standards like the GHG Protocol, ISO 14067, and PAS 2050.

Interested in finding out more about Streamlined Energy and Carbon Reporting (SECR) Regulations?

Contact our energy and carbon management experts today if you want to save time and money by streamlining the process of collecting and calculating emissions data across all your company’s activities.

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