ECHO-WAVE: Pioneering Luxembourg’s First Green Hydrogen Revolution

ECHO-WAVE Powering Industry and Mobility with 100% Renewable Hydrogen for a Carbon-Neutral Tomorrow

Decarbonizing Industry with Green Hydrogen Innovation

ECHO-WAVE is Luxembourg’s groundbreaking pilot project for green hydrogen production, directly linking renewable energy sources with industrial hydrogen use.
This first-of-its-kind initiative aligns with national and EU climate goals to decarbonize energy-intensive industries and mobility by replacing fossil hydrogen with clean, locally produced green hydrogen. Due to its highly innovative and pioneering approach, the project has been awarded co-funding by the European Innovation Fund and the Luxembourg Ministry of the Economy.

290 t/year

green hydrogen production capacity

23,535 t CO2

GHG emission avoidance over 10 years

41 %

of Luxembourg’s current fossil hydrogen demand substituted

2.5 MW

PEM electrolyser, directly powered by renewables

>12 GWh/year

renewable generation (wind + agrivoltaics)

Building Luxembourg’s Renewable Hydrogen Ecosystem

ECHO-WAVE is more than just a production facility; it’s a model for a complete, resilient hydrogen value chain in Luxembourg. The project’s hybrid system combines renewable energy generation, hydrogen production (via electrolysis), storage, and utilization at an industrially relevant scale.

Based on Luxembourg’s national hydrogen and climate strategies, ECHO-WAVE creates a local ecosystem integrating

Agrivoltaics – dual use of land for solar energy and agriculture;
Wind power;
PEM electrolysis;
An innovative Universal Control Unit (UCU) powered by AI-driven predictive control.

The project fosters new business models by planning to share renewable electricity at medium voltage between producers and consumers through an energy community and is a catalyst for replicability across Luxembourg, the Greater Region, and Europe.

The project will avoid 23,535 tonnes of CO2 equivalent over its lifetime; equal to the annual emissions of around 3,800 EU households.

Kehlen Pilot: A Living Lab for Hydrogen-Powered Industry

The pilot site in Kehlen, Luxembourg, strategically positioned near existing infrastructure and transportation routes, leverages the synergy of innovative agrivoltaics concepts and advanced wind turbines to power a 2.5 MW PEM electrolyser.

This pilot demonstrates the technical and economic viability of producing green from directly connected renewable electricity sources – enabling storage and availability of renewable energy in hard-to-decarbonize industrial and mobility sectors while bypassing the public grid to reduce cost and grid burden.

ECHO-WAVE serves as a scalable model for hydrogen-intensive sectors such as glass, steel, or food processing, proving that with its modular architecture, industries can produce their own renewable hydrogen on site, accelerating Europe’s path toward industrial decarbonisation.

Cutting-Edge Technologies Driving Green Hydrogen Success

Agrivoltaic dual-axis tracker solar systems with bifacial PV modules for maximized energy and livestock grazing synergy
ENERCON E-138 wind turbine optimized for medium wind sites with features minimizing environmental impact
PEM electrolyzers chosen for high efficiency, operational flexibility, and high hydrogen purity
Universal Control Unit integrating model predictive control and neural networks for real-time energy and electrolyzer optimization
Energy Community platform enabling renewable electricity sharing and cost-efficient direct connection to renewable electricity sources

Breakthrough Innovations Setting New Standards in Hydrogen

In ECHO-WAVE, we are advancing the Hydrogen technologies that will support the green transition with key innovations:

First direct connection of multiple renewable energy sources with electrolyzers under EU RED II regulations avoiding public grid usage fees and grid burdens
Novel AI-driven hybrid control system UCU for predictive energy management and electrolyzer control optimization
Integration of agrivoltaics with advanced tracking technology and concepts to balance energy, agriculture, and environmental goals
Energy community model enabling local electricity sharing at medium voltage, facilitating new regulatory frameworks and business models
Demonstration of commercial-scale, safe, and efficient green hydrogen transport logistics aligned with Luxembourg hydrogen strategy
Expanding green hydrogen applicability in hard-to-abate sectors

ECHO-WAVE positions Luxembourg at the forefront of hydrogen innovation by demonstrating integrated, decentralised, and replicable solutions for hard-to-abate industries.

Project Timeline

26 May 2025: ECHO-WAVE was one of two projects selected for national public funding under the pilot call.
1 August 2025: Kick-Off for the ECHO-WAVE project under the EU Innovation Fund
Q1 2026: Final Investment Decision (FID) of the project will be taken to initiate the next phase
Q1 2026 – Q3 2027: Procurement, installation and commissioning of the different project assets. This includes the wind turbine, the agrivoltaics plant and the hydrogen infrastructure.
Q3 2027 First Production Phase: Production commences with a targeted annual quantity of around 180 tonnes of green hydrogen. Additionally surplus electricity will be injected into the public grid.
Q3 2030 End of Innovation Fund: The end of the 3rd year of operation marks the termination of the Innovation Fund project.
Long-Term Scaling (Years 4 to 10): The electricity supply will be increased through Power Purchase Agreements (PPAs) resulting from the expansion of agrivoltaics facilities and the addition of an extra wind turbine
10-year project duration: The operation is guaranteed for 10 years by the national funding program.
Mid-2030s: A larger and longer-term vision for decarbonization in Luxembourg depends on the availability of renewable hydrogen via pipelines.

ECHO-WAVE PARTNERS

GPSS S.A.

Founded in 2021 in Luxembourg, GPSS specialises in renewable energy production, agrivoltaics, and hydrogen system design. With a proven track record in the national agrivoltaics pilot tender, GPSS brings strong expertise in simulation tools, feasibility studies, and project development. For ECHO-WAVE, GPSS acts as promoter and coordinator, contributing advanced modelling and the development of the Universal Control Unit (UCU) for hybrid system optimisation.

Soler S.A.

Established in 2001, Soler is Luxembourg’s largest renewable energy producer, jointly owned by SEO and Enovos. With 14 wind parks, 48 turbines, and 341 GWh annual production, Soler has deep expertise in project development, financing, and operation of renewable assets. As a promoter of ECHO-WAVE, Soler provides technical know-how in wind power, strong financial backing, and proven experience in permitting and project realisation, reducing risk and ensuring long-term viability.

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Linkedin ECHO-WAVE project

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Project Coordinator:

GPSS S.A.
Luxembourg

Philipp Fisch
Philipp.fisch@gpss.lu

Co-Funded by the European Union. Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or the European Climate, Infrastructure and Environment Executive Agency (CINEA). Neither the European Union nor the granting authority can be held responsible for them.