Fuel Cells and Hydrogen E Company ENERTRAG is

Fuel Cells and Hydrogen E

Company ENERTRAG is a European IPP specialized in sustainable energy and acting in all areas necessary for power generation. Erection and maintenance of energy plants Financing of energy projects Construction and operation of electricity grids Development and controlling of interlaced power stations Technology development www. ENERTRAG. com 2

Figures 900 million € investment over 650 MW installed capacity over 500 erected turbines over 1200 turbines under service and maintenance over 250 million € annual turnover 1. 2 billion kilowatt hours per year 400 employees (140 of them in O&M) 8 trainees www. ENERTRAG. com 3

ENERTRAG Generation Management Kraftwerk N-O Brdbrg. Electricity work Fluctuation wind offer Repowering Electricity demand Hour

HYBRID-ENERGY-PLANT World‘s first industrial-scale Hybrid-Energy-Plant 500 kilowatts outlined “green” capacity Over one year project development Partnership with University of Applied Sciences in Stralsund, Technical University in Braunschweig and experts from the international hydrogen community Preferred location: Brandenburg, Germany Start of plant operation in the beginning of 2008 Over 4 million € direct investment and over 3 million € research investment Supply of Energy, Heat and Fuel at all times, even if the wind isn’t blowing www. ENERTRAG. com 5

Functional principle HYBRID-POWER-PLAN Electricity Grid 3 Turbines Electrolysis Hydrogen CHP Storage Variable mixing Mixing valve Fuel Heating Grid Storage

HYBRID-ENERGY-PLANT: Project details Technical Specifications: • Green Energy: • 500 k. W from the ENERTRAG-WEC Grid • Hydrogen Generation incl. : • • Alkaline Electrolyser (500 k. W): 120 Nm³/h @nominal load Compression to 30 bar Main Objectives – First Steps: • Development of a Control and Power Conditioning Unit (Software and Hardware) • System integration according to specific local conditions • • • Biomass plant: • 625 k. W • • Ground storage: • • • Development and optimization of a H 2/Biomass-CHP • Operational: Hydrogen: 1. 350 kg @30 bar Biogas • CHP: • • • Optimization of a standard electrolyser Improvement of system efficiency, reliability and availability Balance of component-sizing • • 350 k. W (el. ) 155 k. W (thermal) Fuel: max. 70% Hydrogen, 30% Biogas Forecast error compensation Grid Stabilization Peak-Shaving Insured Supply (Availability during calm periods) • Economy www. ENERTRAG. com 7

Gas Injection

Full Energy Supply Wind Hydrogen Biogas Intelligent Energy Mix Electricity Fuel Heat and Cooking

Responsible Energy Generation