{"id":18171,"date":"2025-11-22T11:05:26","date_gmt":"2025-11-22T10:05:26","guid":{"rendered":"https:\/\/www.tcs-engineering.de\/seveso-hazardous-incident-law-in-battery-technology-what-manufacturers-and-recyclers-need-to-consider-now\/"},"modified":"2025-11-22T11:53:12","modified_gmt":"2025-11-22T10:53:12","slug":"seveso-hazardous-incident-law-in-battery-technology-what-manufacturers-and-recyclers-need-to-consider-now","status":"publish","type":"post","link":"https:\/\/www.tcs-engineering.de\/en\/seveso-hazardous-incident-law-in-battery-technology-what-manufacturers-and-recyclers-need-to-consider-now\/","title":{"rendered":"Seveso & hazardous incident law in battery technology: What manufacturers and recyclers need to consider now"},"content":{"rendered":"

Law, technology and safety combined – what the Seveso and accident regulations mean for modern battery technology.<\/strong><\/h1>\n

Seveso (EU) and the Hazardous Incident Ordinance (DE) are not “chemistry-only” issues. They apply wherever hazardous substances are present in relevant quantities – i.e. also in battery production (electrolyte, solvents), in test laboratories, in stationary BESS and in recycling. For electrical engineers, the clever dovetailing of system design, electrical protection concept, substance management and safety organization is decisive for approvability, availability and fire protection – and thus for economic efficiency. <\/p>\n

1) What it’s all about – and why it directly affects electrical engineering<\/strong><\/h2>\n

The European Seveso Directives regulate the prevention of major accidents<\/strong> involving hazardous substances and the limitation of their effects<\/strong>. In Germany, they are implemented via the 12th BImSchV (Major Accidents Ordinance)<\/g>. Seveso II (96\/82\/EC) replaced Seveso I; today Seveso III (2012\/18\/EU)<\/g> applies, which replaced Seveso II and, among other things, adapted it to the CLP classification. This means that it is not facility types that count, but operating areas<\/strong> in which hazardous substances reach the quantity thresholds<\/strong> according to the Annex; then graduated obligations from the basic obligation to the safety report<\/strong>, alarm\/hazard prevention planning<\/strong> and official on-site inspections<\/strong> apply. <\/p>\n

Electrotechnical reference:<\/strong> In battery<\/strong> production, large quantities of flammable solvents (e.g. NMP substitutes in cathode\/anode coating, washing\/cleaning media) and electrolytic liquids<\/strong> are produced; in stationary storage systems (BESS)<\/strong>, energy-rich modules are concentrated in housings\/rooms; in recycling<\/strong>, hazardous reaction gases<\/strong> can be produced during thermal\/chemical decomposition. Whether your site falls within the Seveso scope is determined by the accumulation of<\/strong> hazardous substances in the operating area – regardless of whether the focus is mechanical, electrical or chemical. <\/p>\n

2) Duties translated for battery projects<\/strong><\/h2>\n

Corporate policy & safety management<\/strong><\/p>\n

Seveso requires an integrated safety concept<\/strong> and a “state of the art” safety organization<\/strong> – with clear responsibilities, maintenance processes, change management (MOC), training and consistent accident\/near-accident evaluation<\/strong>. For electrical engineering managers, this means that safety functions (BMS limit values, insulation monitoring, shutdowns, ATEX protective measures, fire protection) must be anchored in the organization<\/strong> and effectively demonstrated<\/strong>. <\/p>\n

Safety reports & distances<\/strong><\/p>\n

If the thresholds are exceeded, safety reports<\/strong>, alarm\/hazard prevention plans<\/strong> and, if necessary, spatial distances<\/strong> to areas worthy of protection must be submitted. For BESS, for example, this means Fire scenarios<\/strong>, thermal runaway events<\/strong> (propagation), smoke\/HF release<\/strong> as well as extinguishing and smoke extraction concepts<\/strong> must be plausibly calculated and interlinked with the electrical design (zoning, current limitation, shutdown logic). <\/p>\n

Role of the incident officer<\/strong><\/p>\n

The incident officer<\/strong> advises the operator, monitors compliance with the specifications, reports defects immediately and reports annually – expertise and reliability are regulated. In electrical engineering companies, his active interface with electrical planning, maintenance and operation is crucial. <\/p>\n

3) Battery production: from “chemical” risk to electrotechnical implementation<\/strong><\/h2>\n

Coating & drying:<\/strong> Solvent-based slurries and electrolyte handling require explosion protection and fire protection concepts<\/strong>. For electrical engineering, this means ATEX-compliant equipment in relevant zones, safe shutdowns<\/strong>, functional safety (SIL\/PL) for ventilation, extraction, oven\/dryer and interlocked energy supplies<\/strong>. Seveso obligations require proof<\/strong> that technical and organizational measures are suitable for preventing or limiting incidents. <\/p>\n

Forming & testing:<\/strong> Exothermic risks<\/strong> arise during initial charging; electrical systems must provide robust current\/voltage<\/strong> limits, monitor cells and disconnect them safely in the event of a deviation. The BMS function<\/g> is relevant to safety here: Limit values, balancing, fault management and emergency shutdown are documented and taken into account in exercises\/alarm plans. (For technical standard environments, see chapter 6.) <\/p>\n

Power supply & earthing:<\/strong> High short-circuit power in test benches\/strings requires selectivity<\/strong>, arc-proof<\/strong> switchgear, equipotential bonding<\/strong> and insulation monitoring<\/strong>. Seveso also requires quality-assured maintenance<\/strong> – inspection plans, test levels, approvals – and the documentation<\/strong> of changes. <\/p>\n

4) Stationary BESS: Seveso meets system and electrical safety standards<\/strong><\/h2>\n

There are special safety standards<\/strong> for grid-integrated storage systems that combine with Seveso obligations to form a consistent overall concept: <\/p>\n