FLASC - Hydro-Pneumatic Energy Storage

Gallery FLASC - Hydro-Pneumatic Energy Storage 1
Gallery FLASC - Hydro-Pneumatic Energy Storage 1
June 2020
Headquarters 2611 VT Delft, Pays-Bas

FLASC - Hydro-Pneumatic Energy Storage - Safe, reliable and scalable energy storage, designed specifically for offshore applications

The solution addresses a fundamental problem related to the integration of large-scale renewable energy production into conventional energy systems: the mismatch between energy supply and demand.

Energy storage is the key to make renewable energy consumption independent from energy production, allowing for flexibility and reducing the waste of energy. The FLASC hydro-pneumatic energy storage solution specifically targets offshore applications, a crucial energy sector, where existing solutions for onshore applications are not able to feasibly address this problem due to safety and reliability issues. The solution uses compressed air and pressurised seawater in a patented, pre-charged accumulator concept, resulting in an energy storage device that is inherently safe, reliable and also cost-effective thanks to a +20 year lifetime.

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Key features

  • For every megawatt of wind energy penetration, 1,240 tons of CO2 emissions are avoided every year.
  • The primary material is steel, which can be easily recovered and recycled.
  • Lifetime matching offshore infrastructure needs


  • Cost-Saving: 20-50%

Activity Region

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Netherlands, Malta,

  • Headquarters
  • Activity

Related Topics

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