Project timeline

January 2024

Start of Air4NRG Project

June 2024

Complete simulation of the prototypes

September 2024

First research test bench started - at low pressure (RapidcompA)

March 2025

Finalised design for the HA prototype (25kW)

January 2026

First assembly of HA prototype - automated test at low pressure

June 2026

Research test bench upgraded for high pressure tests (RapidcompB)

July 2026

Finalised design for the HX final prototype (200kW)

September 2026

HA prototype finalised and tested for high pressure

October 2026

Complete test campaign in Portugal with HA prototype, on a storage test site 

December 2026

Showcase event

March 2027

Final assembly of HX prototype and beginning of a full-scale test campaign (Spain)

July 2027

Final event, presentation of all results

TECHNOLOGIES/
sOLUTIONS

Air4NRG is more than just an I-CAES project; it encompasses the development of various innovative technologies and solutions aimed at revolutionising energy storage. By integrating advanced manufacturing techniques, new materials, and comprehensive frameworks, Air4NRG is set to deliver new results in the field of energy storage.

  • Isothermal Compressed Air Energy Storage (I-CAES) technology: Achieving over 70% round-trip efficiency.
  • Small regenerative heat exchangers (RHE) design and development: Creating efficient heat exchangers for energy storage.
  • Innovative manufacturing methods for producing RHE solutions: Developing advanced manufacturing techniques, designed for replicability.
  • 200kW I-CAES prototype validated: A scalable prototype for long-term energy storage.
  • Container-sized prototype validated at TRL5: Designing, manufacturing, and assembling a versatile storage solution.
  • Framework for Air4NRG application in industrial environments: Guidelines for implementing energy storage solutions.
  • Service-oriented energy storage business use cases: Developing business models for long-term energy storage.
  • Assessment of the sustainability performance of Air4NRG technology: Evaluating environmental benefits and impacts.

Objectives

The primary objective of Air4NRG is to develop a scalable, efficient, and environmentally friendly compressed air energy storage system.

This system will significantly enhance renewable energy availability and support Europe’s transition to renewable energy. By leveraging isothermal compressed air energy storage (I-CAES) technology, the project aims to achieve over 70% round-trip efficiency, providing a robust and cost-effective solution for long-term energy storage.

Impacts

Air4NRG is set to make a substantial impact on energy storage efficiency, cost reduction, and environmental sustainability. By using local materials and promoting European industrial capabilities, the project will strengthen energy security and economic resilience.

Achieve more than 70% round-trip efficiency, significantly improving energy storage performance.
Reduce the environmental footprint of energy storage systems by using sustainable materials and processes.
Enhance the cost-effectiveness of energy storage, making renewable energy more affordable and competitive.
Support the European Union's goals for energy independence and sustainability.
Promote local manufacturing and reduce dependency on imported resources.

CONSORTIUM

Air4NRG is a collaborative effort involving expert partners from across Europe, each contributing unique expertise in energy storage, technology development, and environmental sustainability.