Advent Investor Presentation Deck

COMBINED HEAT & POWER: UNITS FOR HOME AND COMMERCIAL APPLICATIONS Advent Technologies has been nominated by the Greek Ministry of Development and Investment to be part of the first wave of Important Projects of Common European Interest ("IPCEI") on Hydrogen. Advent will also be spearheading the Green HiPo project as part of the overall, joint "White Dragon" project. HiPo Station 3-5kW 00000 Private Suitable for different types of buildings Single-family homes Multi-family homes ADVENT Commercial Suitable for small-scale commercial buildings, Businesses and more: . ● Restaurants Hotels Office buildings Workshops Stores Medical Centers Banks 5kw 10kw APPLICATION OPERATING MODE MONITORING FUEL FUEL CELL TYPE 15kw OVERALL EFFICIENCY ELECTRICAL EFFICIENCY THERMAL POWER ELECTRICAL ENERGY GENERATED/YEAR THERMAL ENERGY GENERATED/YEAR WEIGHT HEIGHT X WIDTH X DEPTH SERVICE 1.520mm Electrical power and heat for family homes, companies, public and commercial buildings 490kg All year (-8,700hrs) Available via web enabled device Hydrogen, Natural gas, LPG, Methanol, e-fuels and any hydrogen carriers HT PEM Fuel Cell (3-5kW) 90% 40% Up to 5kW 26,000kWhr 44,000kWhr 490kg 1,520mm x 860mm x 610mm 12 months (air filter, water purification) 01 FUEL-FLEXIBLE Can start deployment in natural gas network and eventually support H2 input or other fuels without new investment 02 THE RIGHT TEMPERATURE 04 LT-PEM doesn't provide quality heat, and Solid Oxide Fuel Cell (SOFC) is too hot (600+°C) 03 MODULAR Can scale up to bigger units by adding systems in parallel COST Lower cost to manufacture than SOFC, simpler supply chain Any Fuel. Anywhere. 16

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