More than a green
energy project,

Thalis1 is a pioneering utility-scale Green Hydrogen (GH2) project developed by Idea Ependyseon, harnessing the power of a dedicated 2,100 MW photovoltaic plant and residual water from wastewater treatment for sustainable hydrogen production.
Located in Northern Greece, at strategic proximity to the European Hydrogen Backbone (EHB) via the HI East Corridor, Thalis 1 is designed to make a lasting impact on Europe's green transition.


The project will be deployed in two equivalent phases, each featuring 1,050 MW PV capacity and 600 MW electrolyzer capacity, ultimately producing up to 138,000 tons of green hydrogen per year.
With no CO₂ emissions during production, Thalis1 has the potential to avoid over 404,000 tons of CO₂ annually, supporting hard-to-abate sectors like steel and enabling large-scale renewable energy storage.

Timeline

2031
Phase 2
Operational
Feasibility study completed
Environmental permitting pending
Flagship investment application
Q2 2025


2030
Phase 1
Operational



Environmental Impact

CO₂ Avoidance
404,800
tons
CO₂ Avoidance in Industry
657 tons/year
Energy Storage Avoided Emissions
400 tons CO₂ per GWh
Natural Gas Replacement
236 million m³/year
Total Estimated Emissions Reduction
458,390 tons CO₂/year

