Investment Work Package I.2 H2 to Transportation Fuels: Solar-fueled H2 refueling station (HRS) Stornoway, June 26./27.st 2018

Agenda WP Progress WP Adjusted Timeline Design Results Procurement Process Steps Ahead

WP I.2 Progress 2018 2019 2020 Pre-Design Risk Analysis Selection Status June 2018 2018 Risk Analysis Selection refined-Design Procurement Contracts Technical Review Risk Mitigation Permits Civil work Installation 2019 Installation Commissioning Monitoring Analysis Installation Analysis Replication 2020 SWOT

Authorities engineering Timeline WP I.2 Pre-Design Procurement Risk assessment Authorities engineering Civil work Plant construction SAT Operation

Main Distribution Panel WPI.2.1 Design Results Dispenser 700 barg 6 kg H2 600 km LT:30 min PV Array DC/AC 35 kWp Electrical Grid 70 KVA/3Ph/400V Main Distribution Panel Electrolyzer 5,0 Nm3 H2/hr @32 barg Compressor Bank Multi-Stage´Compressor Multi Stage Storage (Seasonal and Loading) Storage* 55 kg H2 (Seasonal & Loading) Water Supply 30 L/h @3-5 barg

Fig1.H2 Refueling Station Location (Source Google Maps) WP I.2.1 Design Results PV Array Fig1.H2 Refueling Station Location (Source Google Maps) Station (Incl. security clearance) IZES GmbH SCOPE Location: Innovation Campus Saar Saarbrücken, Germany Semi-Autonomous Operation (PV Array) 700 barg loading Seasonal and Loading Storage (1 Vehicle)* Peak Production Expansion Water Treatment Unit Containerized Solution Monitoring and Plant Management System

WP Design Results

WP I.2.1. Design Results Design: Refining Hydrogen Quality adjusted to SAE2719, Cost optimized Compressing conditions simulated and suggestions for energetic optimization Filling conditions modified, according to vehicle manufacturers claim Cost optimized

WP I.2.1 Risk and Mitigation Explosion Protection (reject zones) Fire Protection (fire loads) Respect securtiy distances to buildings and storages (3 m Horizontal, Vertical Vent Clearance) Noise Levels: <65 dBA in operation >45 dBA idle Third Party certified Permit Process Route: Supplier & IZES => ZÜS & TÜV (Comissioner) => Construction and Operation Authorities

WP I.2.2 Procurement RFO as a basis for Suppliers (4 Offers Received) Turn-Key Solution, Self-Contained, Outdoor Solution. Components: Electrolyzer: Initially 5 Nm3/hr Water Treatment Plant Gas Conditioning Equipment: 99,999% of H2 Compression Bank: Sufficient to load 6 kgs @ 700 bars Storage Tank: 50 Kg- Minimum Overall (Flexible for different pressure steps) Dispenser: Sufficient to load 6 kgs @ 700 bars. LT: 30 mins Facility Control System: Plant Slave of the PV Array/Normal Mode Warranty: running hours dependant *The plant will not be fully fit for a commercial application! (Modelling should resolve this!)

Thanks! IZES gGmbH Contact Points Bodo Groß, gross@izes.de Wulf Clemens clemens@izes.de