Safety Assessment Requirements for the Approval of a Hydrogen Refueling Station Menso Molag Ingrid Heidebrink

ICHS 2007Safety Assessment requirements for HRS Approval2 Contents HyApproval project Stakeholders for HRS Approval Interviews of Stakeholders Safety requirements of the approving authorities Conclusions and recommendations

ICHS 2007Safety Assessment requirements for HRS Approval3 Background of the HRS approval Demonstration projects: difficult to get approval for a HRS Need for Harmonisation of a HRS and HRS approval HyApproval: Facilitate the HRS approval WP3 Stakeholders? What safety information is needed? How is it assessed by the authorities? How can it be harmonised?

ICHS 2007Safety Assessment requirements for HRS Approval4 Stakeholders in the Approval Process Industry Authorities Advisors to the authorities Labour or industry or environmental inspectorate Fire Brigade Public Consumers People living or working in the environment of a HRS

ICHS 2007Safety Assessment requirements for HRS Approval5 Interview questionaire A.Responsibility and liability of stakeholders B.Required information C.Occupational and external safety policy concerning HRS D.Assessment criteria HRS E.Applied guidelines and methods to assess consequences and risks F.Off-site safety and land use planning G.Inspection H.Emergency planning I.Dissemination of HyApproval Handbook J.Remarks / gaps Interviews in: France, Germany, Italy, Netherlands, Spain, USA,

ICHS 2007Safety Assessment requirements for HRS Approval6 Requirements of the approving authorities Common elements Need for H2 specific laws/regulations Required permits Building permit Environmental permit Operating permit Safety policy Prevention of accidents Create a safety zone or safety distance Optimal preparation of emergency services Safety assessment

ICHS 2007Safety Assessment requirements for HRS Approval7 Definition of HRS Safety distances 1.Explosion Hazard zones ATEX [94/9/EC, IEC/EN , NFPA 70] 1 st, (2 nd ) party risks 2.Safety distances or minimum separation distances Low probabilty accidents with consequences Frequency > 3.5 * per year Consequences inside HRS 1 st, 2 nd party risks [EIGA DOC 75/07/E] 3.External safety distances: Very low probability, high consequence accident scenarios Frequency ≤ 3.5 * per year Consequences outside boundary of HRS 1 st, 2 nd, 3 rd party risks

ICHS 2007Safety Assessment requirements for HRS Approval8 Safety Assessment Requirements Prescriptive: built according applicable guidelines All interviewed countries Deterministic: no 2 nd and 3 rd party consequences Germany, Spain Probabilistic: demonstrate acceptable 2 nd and 3 rd party risks Netherlands

ICHS 2007Safety Assessment requirements for HRS Approval9 Conclusions and recommendations Industry focuss: Built and operate a safe HRS Authority focuss: Safe environment of HRS Early and good communication between stakeholders Draft specific guidelines for design, lay-out and inspection HRS HyApproval Handbook is a good start to facilitate HRS approval Handbook must be updated New technology Reduction of uncertanties in safety assessment Harmonisation approval process