Introduce ISO 50001: Energy management system in eight steps to certification

ISO 50001:2018 specifies the requirements for an energy management system (EnMS). It follows the high-level structure of the ISO management system standards, is compatible with ISO 9001 and ISO 14001 and is a prerequisite for several state relief measures in Germany: peak compensation according to Section 55 EnergieStG and Section 10 StromStG, limitation of the EEG levy via the BAFA procedure, as well as relief under the Energy Efficiency Act (EnEfG) of November 13, 2023. Without a certified EnMS or an alternative Energy audit according to DIN EN 16247-1, these options are no longer applicable.

The standard requires more than one audit. It requires an energy policy, an energy assessment, energy performance indicators (EnPIs), an energy baseline (EnB), goals, action plans, competence, documentation, internal audits and management reviews. This article describes the eight steps of an introduction that leads to initial certification and names the operational tasks of the energy or environmental officer during ongoing operations.

ISO 50001:2018 is applicable to organisations of any size, any industry and any location. The standard defines central terms in Section 3: energy, energy performance, energy performance indicator, energy assessment, energy baseline, significant energy use. All types of energy must be considered within the scope of the standard, i.e. electricity, natural gas, heating oil, district heating, fuels and compressed air. A restriction on electricity alone is not permitted.

Section 8 of the German Energy Efficiency Act (EnEfG) of November 13, 2023 requires companies with annual total final energy consumption of more than 7.5 GWh to introduce an EnMS according to ISO 50001 or an environmental management system according to EMAS by July 17, 2025. Companies with consumption between 2.5 and 7.5 GWh are according to § 9 EnEfG is obliged to carry out an energy audit in accordance with DIN EN 16247-1 every four years. There are also sectoral obligations: data centres with a non-redundant connected load of 300 kW or more are subject to Section 11 EnEfG with an EnMS obligation and publication of efficiency indicators. The environmental protection officer often takes on the role of the energy management officer or works closely with him, as many data sources and reporting channels are identical.

Section 4 of ISO 50001:2018 requires determining the context of the organisation, interested parties and their relevant requirements, as well as defining the scope and boundaries of the EnMS. In practice, this means a written description of the locations, energy sources, main consumers, legal requirements (EnEfG, EEG, EnergieStG, BImSchG) and contractual obligations (supply and funding contracts, customer requirements). The boundaries decide on the subsequent data collection and on the question of which locations are eligible for certification.

Step 2 is the energy policy according to Section 5.2. Top management must establish an energy policy that is appropriate to the purpose and context of the organisation, provides a framework for setting energy-related goals, includes a commitment to providing the information and resources necessary to achieve the goals, includes a commitment to compliance with applicable legal and other requirements, ensures continuous improvement of energy performance and the EnMS, and supports energy-efficient procurement and energy performance-oriented design of facilities. Energy policy must be kept as documented information, communicated internally and made available to the public, where appropriate. Others run compliance like a filing cabinet. We run it like software.

Section 6.3 requires an energy assessment. It includes analysing energy use and consumption based on measurement and other data, identifying areas of significant energy use (SEU), determining the current energy performance of SEUs and the variables relevant to them, and identifying, prioritizing and recording opportunities to improve energy performance. SEUs are typically production facilities, compressed air, refrigeration, ventilation, lighting and IT infrastructure.

Sections 6.4 and 6.5 require the establishment of energy performance indicators (EnPIs) and an energy baseline (EnB). EnPIs are intended to make energy-related performance measurable; They must be able to detect changes and they must take relevant variables into account, such as production volume, outside temperature, operating hours or utilization. The EnB is the quantitative reference value against which improvements are measured. Normalization via statistical methods, often multiple linear regression, is necessary when the relevant variables fluctuate. Anyone who reports EnPIs without normalization risks audit findings in the certification audit. Audit-proof, documented, Section 8-proof. The energy officer records the EnPI methodology in a method document and checks annually whether the variables are still selected correctly.

Section 6.2 requires energy-related goals and objectives. They must be consistent with energy policy, measurable, monitored, communicated and time-limited. An action plan shall be drawn up for each objective, which includes: what is to be done, what resources are required, who is responsible, when the action is to be completed, how the results will be evaluated, and what methods will be used to verify the energy-related performance improvement.

Section 8.3 requires energy efficient procurement. When planning to purchase products, equipment and services that have or may have significant energy use, the organisation must inform suppliers that the procurement will be evaluated in part on energy performance. Furthermore, design criteria for the energy performance-oriented design of new, modified and renovated facilities, equipment, systems and processes with significant energy use must be specified in accordance with Section 8.2. Procurement and design guidelines are where an EnMS generates lasting savings because they avoid future consumption, not just measure existing ones. Funding programs from BAFA and KfW (Federal funding for energy and resource efficiency in the economy, BEW; energy efficiency and process heat from renewable energies in the economy) often depend on documented design criteria.

Section 7.2 requires that the organisation determine the required competence of the persons whose work under its control affects energy performance and the EnMS and that it ensures that such persons are competent based on appropriate education, training or experience. Where applicable, the organisation shall take measures to achieve the required competence and assess the effectiveness of the measures.

Section 7.3 requires individuals' awareness of energy policy, their contribution to the effectiveness of the EnMS, including the benefits of improved energy performance, the impact of their activities or behaviour on energy performance and the consequences of deviating from the requirements of the EnMS. Section 7.4 requires documented internal and external communications. Training records, participant lists, learning goal controls and awareness campaigns are the typical evidence. The energy or environmental officer bundles this evidence in a workspace and links it to the roles of the employees. The quality management representatives often integrate the training system into an integrated management system that shares ISO 9001, ISO 14001 and ISO 50001.

Section 8.1 requires the planning, control and maintenance of the processes necessary to meet the requirements. Operating criteria must be established for the SEUs, staff must be competent in their application and control must be carried out to a level that allows effective control. Section 9.1 requires the monitoring, measurement, analysis and evaluation of energy performance and the EnMS. At least the following characteristics must be monitored: SEUs, relevant variables, EnPIs, effectiveness of action plans, actual versus expected energy consumption.

In practice, data quality is the most common vulnerability. Meters are not calibrated regularly, sub-metres are missing for relevant SEUs, manual readings are incomplete, or energy management software (EMS software) is operated with incorrect master data. A documented measurement plan that records responsibility, frequency, accuracy requirements and calibration interval for each measuring point is the basis of every reliable EnPI. During certification audits, the measurement plan and calibration evidence are regularly checked. The auditor calls, the evidence is ready. A central storage in the EnMS workspace with versioning, retention periods and responsibilities prevents audit key figures from having to be collected from email attachments the evening before the audit.

Section 9.2 requires an internal audit at scheduled intervals to provide information on whether the EnMS meets its own requirements, the requirements of ISO 50001:2018 and the effective implementation and maintenance. Audit program, audit criteria, scope of audit, selection of auditors, reporting and documentation of results must be determined. Auditors must be independent of the area being audited.

Section 9.3 requires a management review at scheduled intervals in which top management assesses the suitability, adequacy and effectiveness of the EnMS. Inputs include: status of previous management reviews, changes in external and internal issues, energy performance information including EnPI trends, corrective actions, planned improvements. Step 8 is certification by an accredited body (DAkkS accredited) after a level 1 and level 2 audit. Level 1 checks the documentation and auditability; Stage 2 checks the implementation on site. Surveillance audits take place annually, recertification every three years. Anyone who goes into the recertification audit without EnPI improvement risks a major deviation because the continuous improvement according to Section 10.2 cannot be proven. The appointment certificate, signed, filed, verifiable.

A certified ISO 50001 system is a prerequisite for several financial reliefs. The special compensation regulation of the EEG (Section 64 EEG 2023) requires EnMS certification or EMAS registration for electricity-intensive companies above a certain electricity cost intensity. The limitation is applied upon application to BAFA by June 30 of the year of application. The CHP privilege and electricity price compensation for electricity-intensive industries follow similar mechanisms.

The EnEfG of November 13, 2023 supplements these obligations. Section 8 EnEfG requires companies with total final energy consumption over 7.5 GWh to have an EnMS in accordance with ISO 50001 or EMAS by July 17, 2025. Section 9 EnEfG requires companies with consumption between 2.5 and 7.5 GWh to carry out an energy audit in accordance with DIN EN 16247-1 every four years. § 10 EnEfG requires implementation plans for identified energy efficiency measures with economic evaluation for all those obliged under § 8 or § 9, which must be published or submitted to BAFA. The peak compensation according to Section 55 EnergieStG and Section 10 StromStG has been completely eliminated since January 1, 2024, which increases the importance of the other advantages (eligibility, EEG limitation, EnEfG obligation fulfilment). Licence the workspace for your internal representatives, or have our representatives order it.

CIVAC is a compliance platform and officer-as-a-service. For ISO 50001 implementation, the platform provides pre-configured audit templates along Sections 4 to 10 of the standard, a data room with EU data residency for measurement data and calibration evidence, a reporting line between the energy officer, management and certification body, as well as templates for EnPI methodology, energy baseline and action plans. The 490 ready-to-use audit templates cover the majority of documentation requirements.

The dual model is simple: licence the workspace for your internal representatives, or have our representatives order it. The CIVAC SLA for an order is two working days, instead of two to six weeks in the classic market. Anyone who has EnEfG deadlines or is planning a certification audit will gain time by placing an external order. The appointment certificate, signed, filed, verifiable. Turn reading into an assignment. Write to info@civac.de or use the contact form on civac.de. The deadline begins when we become aware of it, and the certification date is on the calendar.