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FLASC - Hydro-Pneumatic Energy Storage

Safe, reliable and scalable energy storage, designed specifically for offshore applications

June 2020

FLASC - Hydro-Pneumatic Energy Storage

Safe, reliable and scalable energy storage, designed specifically for offshore applications

  • World Alliance Member
  • Featured Solution
  • Labelled Solution
Label Date June 3, 2020
From Netherlands
Maturity stage TRL 6 - Prototype testing 1:1 in lab

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.

The Environmental Benefits

  • 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

The Financial Benefits

  • Cost-Saving: 20-50%

Target client profile


Activity Region

  • Headquarters
  • Activity

Company Profile


Game-changing energy storage without batteries, tailored for offshore renewables.

Type Startup or self-employed
View company profile

Networking Partner


InnoEnergy supports and invests in innovation at every stage of the journey – from classroom to end-customer.

Solutions Associated 44
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Hello Tomorrow

Hello Tomorrow is global non-profit on a mission to unlock the potential of deep tech to solve the world's toughest challenges, by promoting, empowering & connecting deeptech entrepreneurs across the globe with the right enablers

Solutions Associated 31
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The Enterprise Europe Network

The Enterprise Europe Network helps businesses innovate and grow on an international scale. It is the world’s largest support network for small and medium-sized enterprises (SMEs) with international ambitions.

Solutions Associated 39
View partner profile

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The information set out above, is solely for the purposes of information and the Solar Impulse Foundation does not provide any guarantee as to its authenticity, completeness or accuracy. This information does not constitute investment advice or a recommendation to buy into, transact or to enter into any agreement with any of the parties or persons mentioned above. Potential investors or interested parties are solely responsible for their investment or business decisions and for performing any due diligence required by the circumstances. The innovator FLASC has asserted ownership of the intellectual property rights for images, videos, and content showcased above, affirming full and unrestricted usage rights, and has provided explicit permission for the Solar Impulse Foundation to publish such information designated as "public" in the application form.