DIN EN 17463 (VALERI): How to economically evaluate energy investments

(Updated April 2026) The DIN EN 17463 – VALERI („Valuation of Energy‑related Investments“) – defines how energy‑related investments are valued systematically and comprehensibly. The standard is becoming increasingly important for companies, as it is used as a uniform basis for the economic evaluation of energy efficiency measures in legislation, funding programs, and energy management systems.

In this article, we show,

• like it is used in practice.
• Why the DIN EN 17463 is relevant for companies,
• for which companies whether it is mandatory or recommended,
• which calculation models beyond the norm

What is DIN EN 17463 (VALERI)?

DIN EN 17463 is a standard that A standardized procedure for evaluating energy-related investments determines. It serves to

• to establish uniform criteria for the economic evaluation of energy efficiency measures,
• establishing comparability between projects
• to make the basis for investment decisions transparent.

VALERI is not a legally binding standard in the classic sense, but rather serves as referenced computing and evaluation framework in various legal and funding regulations, energy management systems, and energy reporting.

For which companies is the standard important?

DIN EN 17463 is primarily relevant for three groups of companies:

• Companies with high energy consumption and energy management systems
  Companies that already have an energy management system according to ISO 50001 or an environmental management system according to EMAS companies often use DIN EN 17463 as a standard to economically evaluate energy efficiency measures and document the robustness of their decisions.
• Companies subject to audit or energy efficiency obligations
  Companies that examine energy efficiency measures within the framework of energy audits or legal requirements can use the standard as a basis for assessment to determine whether a measure is economically viable and should be implemented if applicable.
• SMEs and other companies with planned energy efficiency investments
  Even if there is no explicit obligation, DIN EN 17463 offers a structured framework for objectively evaluating energy and investment measures.

Why is the standard interesting for companies?

The use of DIN EN 17463 offers several advantages:

• Comparable economic calculations
  Different energy efficiency measures (e.g., equipment upgrades, insulation, LED lighting, process efficiency improvements) can be evaluated according to uniform criteria.
• Transparency towards controlling, financing, and authorities
  The results are clearly documented, easily verifiable, and can be used for investment decisions, financing applications, or Energy audits in accordance with DIN EN 16247 be used.
• Basis for sustainable actions
  The standard considers not only costs but also risks, useful life, and capital value, ensuring decisions are based on a solid financial foundation.

What standards and computational models does DIN EN 17463 specify?

DIN EN 17463 defines a structured process for evaluating energy and energy efficiency measures. The core process is as follows:

1. Capturing the relevant data
   • Investment costs.
   • Annual energy and cost savings.
   • Useful life and residual values.
2. Calculate economic key figures
   The standard specifies how the following key figures are to be calculated:
   • Static and dynamic payback period.
   • Return on Investment (e.g., Internal Rate of Return).
   • Net Present Value.
   • Influence of interest, risks, and interest rates.
3. Unified presentation of results
   The standard dictates how results should be documented and formatted to ensure traceability for internal departments, energy consultants, auditors, and authorities.

How is DIN EN 17463 used in practice?

The standard is used in practice in various ways:

• In energy and energy management processes
  Energy managers or energy management teams use DIN EN 17463 to objectively evaluate and prioritize energy efficiency measures.
• For energy and efficiency investments
  Companies that invest in asset rehabilitation, energy efficiency measures, or energy management systems, for example, use the standard to demonstrate the economic viability of the measures.
• Within the scope of energy audits and energy management systems
  The standard serves as a basis for determining whether a measure is economically viable and should be implemented if necessary. In practice, Excel templates and specialized software that implement the VALERI methodology are often used.

What role do standards play in energy efficiency measures?

DIN EN 17463 is a key component for the objective evaluation of energy and energy efficiency measures. It helps companies to,

• not only short-term savings, but long-term effects to consider,
• Risks and uncertainties to be factored into the evaluation,
• Objective decisions to be able to make investments that are both economically and ecologically sound.

The standard makes energy efficiency measures more transparent, understandable, and therefore more credible for investors, authorities, and stakeholders in many companies.

Conclusion

DIN EN 17463 (VALERI) is an important standard for assessing energy-related investments.
For companies with energy management systems, energy audits, or high energy consumption, it offers a uniform basis for economically evaluating energy efficiency measures. It is also a valuable tool for SMEs and other companies that are considering energy efficiency measures, enabling them to make investment decisions objectively, transparently, and comprehensibly.

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