Azelio Thermal Energy Storage

Gallery Azelio Thermal Energy Storage 1
Gallery Azelio Thermal Energy Storage 1
February 2021
Headquarters 417 56 Göteborg, Sverige

Azelio Thermal Energy Storage - Energy storage that makes clean power from solar and wind all hours of the day

Azelio's energy storage with Stirling power production is enabling access to renewable power, addressing energy poverty with affordable clean power for the 1 billion that lack grid access, and a reliable clean solution for the 2 billion that live with a weak grid connection.

Azelio has the capacity to take the role of a renewable baseload, replacing diesel that is used today, with a zero-emission solution that produces electricity at half the cost of diesel power. Azelio also has the capability of addressing the resiliency in more mature renewable energy markets. Renewables are creating an overload in existing grids, such as in California, with its intermittent supply patterns. This creates power breakdowns and natural catastrophes. Azelio can balance the output and match demand through storing energy from day to night or from one day to the other, thereby also increasing the productivity from renewable solutions and the use of clean power in the grid. Azelio is using recycled aluminum as a storage medium. It does not require any refilling for maintained capacity as opposed to thermal storage using salt or water. It can be used over and over without any degraded capacity, and it does not use any scarce minerals. This is solving the problem of energy storage solutions requiring constant refilling of salt or water, or batteries that, in many cases, are using conflict minerals.

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Key features

  • 96% reduction of CO2 emission compared to diesel generator
  • 29% reduction of CO2 emission compared to Battery Energy Storage System
  • Recycled aluminum as storage medium


  • 59% cheaper LCOE than diesel generator and 31% cheaper LCOE than BESS
  • Up to 44% cheaper LCOS than BESS
  • Less than 5 years payback time

Categories of Application

Company Profile

Maturity Stage

  • Medium and large scale commercialization
  • Small scale commercialization
  • Initial market commercialization
  • Prototype testing in the real world
  • Prototype testing 1:1 in the lab

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