ESRS Climate Transition Plan: Requirements, 1.5°C Compatibility and Common Gaps

A practical guide to building and disclosing a climate transition plan that is coherent, evidence-based and connected to business transformation.

Transition-plan disclosures become weak when teams use “strategy”, “action plan”, “target” and “transition plan” as interchangeable terms. They are connected, but they answer different questions. Strategy defines direction and business choices. An action plan identifies activities, owners, resources and milestones. A target defines the measured outcome and time boundary. The transition plan integrates these elements into a credible pathway for transforming the strategy and business model.

This distinction matters because an undertaking can have climate targets without a complete transition plan, or a list of approved projects without a demonstrated 1.5°C-compatible pathway. Conversely, a transition plan can be included in a broader plan that covers both mitigation and adaptation, provided the disclosure explains this and cross-references the adaptation and resilience information.

Figure 1. Strategy, action plans and targets are inputs to - but are not substitutes for - a coherent climate transition plan.

The objective of E1-1 is to enable users to understand past, current and future mitigation efforts and whether the strategy and business model are compatible with the transition to a sustainable economy, limiting global warming to 1.5°C in line with the Paris Agreement and achieving climate neutrality by 2050 under the European Climate Law.

The key-features disclosure includes GHG emission-reduction targets, decarbonisation levers, key actions, investments and funding, plan approval and integration with overall business strategy, and an explanation of 1.5°C compatibility. It also addresses specified fossil-related CapEx where applicable, key assumptions and dependencies, a qualitative assessment of potential locked-in GHG emissions from key physical assets and products, and progress in implementation.

The words “1.5°C aligned” should be the conclusion of an analysis, not the starting point of drafting. The file should show the reference pathway or method, target boundary and scope coverage, base year, interim milestones, expected emissions trajectory, treatment of future growth or structural change, significant exclusions and the role of each decarbonisation lever.

The revised Application Requirements ask for a statement on whether GHG targets are science-based and compatible with limiting warming to 1.5°C. If the plan refers to targets that are not compatible, the disclosure explains that fact, including how target values compare with reference values and how future developments were considered. This allows transparent reporting rather than forcing an unsupported alignment claim.

Figure 2. Testing 1.5°C compatibility requires a chain from targets and levers to resources, feasibility, governance and progress.

A transition plan becomes decision-useful when users can understand how the undertaking expects to move from the baseline to its target. The decarbonisation-lever bridge can be qualitative in early stages but should identify the principal sources of reduction and the operational or value-chain changes required. Typical levers include energy efficiency, electrification, renewable energy, fuel switching, process redesign, product and service changes, circularity, logistics, supplier engagement, customer-use changes and asset retirement or repurposing.

Avoid double counting. A renewable electricity contract and the resulting Scope 2 reduction are not two separate reductions. Likewise, a supplier initiative should not be counted both under purchased goods and under a product-level estimate without a controlled allocation method.

The disclosure should explain significant financial resources allocated or expected for implementation, with reference to E1-5 and GDR-A. The revised Application Requirements permit the disclosure to focus on approved and announced key actions/action plans and planned funding sources. This is not a licence to present unapproved aspiration as committed investment.

A transition-plan investment register should identify the action, affected IRO and lever, amount or range, period, CapEx/Opex classification, approval status, funding source, relevant financial-statement or EU Taxonomy amount, expected GHG effect, dependencies and current status. Fossil-related CapEx specified by E1-1 is disclosed when applicable.

Locked-in emissions are future emissions associated with existing assets or products that are difficult to avoid because of useful lives, production plans, customer use, contracts or infrastructure. E1-1 calls for a qualitative assessment of how potential locked-in emissions from key physical assets and products may jeopardise plan achievement and drive transition risk.

A practical assessment combines the asset and product register with remaining useful life, planned utilisation, emissions intensity, retirement or repurposing options, contractual obligations, replacement technology, CapEx, workforce implications and scenario exposure. The objective is not to calculate a universal “locked-in emissions” metric where the source does not prescribe one. It is to explain the material constraint and management response.

Assumptions describe expected conditions such as regulation, energy prices, technology cost, demand, production volume or supplier behaviour. Dependencies describe conditions the undertaking does not fully control, such as grid capacity, availability of low-carbon technology, skilled workforce, customer adoption, supplier transformation, permitting or future finance.

Maintain an assumption-and-dependency register with source, version, time horizon, owner, sensitivity, external/internal status, related action and contingency. Significant assumptions should be consistent with other corporate reporting where possible. When the transition plan assumes one carbon price or energy path and the financial statements use another, explain the difference and its measurement purpose.

Governance evidence should show approval by the administrative, management and supervisory bodies and how the plan is embedded in overall strategy. Useful evidence includes committee terms of reference, board papers, approval minutes, investment decisions, strategy and budget integration, risk appetite, remuneration links where material, progress dashboards and escalation of missed milestones.

Progress reporting should be balanced. Disclose resources deployed, actions taken and GHG reductions achieved or expected. Where milestones were missed, explain the variance, consequence and corrective action. A plan that is never updated after technology, regulation or investment assumptions change is unlikely to remain credible.

If the undertaking does not have a transition plan containing the key features in E1-1 paragraph 12(a), it discloses this fact and indicates whether and, if so, when it expects to adopt one. The disclosure should be direct. Avoid presenting a set of policies, targets or projects as a plan merely to avoid the no-plan statement.

A useful no-plan disclosure can explain the current position, what elements exist, which key features are missing, the governance decision, expected adoption timetable if any, interim actions and material limitations. The standard does not require the undertaking to invent a future adoption date where none has been approved.

The ESRS transition plan is the bridge between climate ambition and business transformation. It should show where the undertaking starts, where it intends to go, why the pathway is compatible or not compatible with 1.5°C, which levers and actions deliver the change, what resources and dependencies matter, what locked-in emissions threaten delivery, who approved the plan and what progress has actually occurred. Transparent disclosure of an incomplete or absent plan is stronger than an unsupported claim that targets and projects together constitute a complete transition plan.