With our proprietary Offshore Energy Storage Solution

store energy where it is produced,
deliver it when needed.

FLASC HPES (Hydro-Pneumatic Energy Storage) is a proprietary offshore energy storage solution.
Designed specifically for offshore applications: safe, reliable and cost-effective.

FLASC HPES stores energy using pressurised seawater and compressed air.

combining patented innovations.

Pneumatic Pre-Charging

The Ocean as a Natural Heatsink

2017 - 2018: 1st Prototype field tests, Malta.

HPES is the first solution tailored for

co-location of large-scale energy storage with offshore wind

Hydro-Pneumatic Energy Storage by FLASC will boost the growth and profitability of this critical clean energy source.

+400

Charging Cycles

+98%

System Availability

>96%

Thermal Efficiency

FLASC HPES converts electricity into hydraulic power during charging and back to electricity during discharging.

“FLASC’s solution is an innovative technology with significant potential, offering a competitive and more sustainable alternative to Li-ion battery farms.”

Offshore Wind Developers enjoy the benefits of our modular approach.

Scalability & Versatility

FLASC can be deployed in a range of configurations. Any configuration consists of two core modules.

ECU

Energy Conversion Unit

PCS

Pressure Containment System

FLASC can be deployed in a range of configurations:

our Unique Selling Points

for offshore wind developers

Scalability
>100 MWh
Roundtrip Efficiency
70 – 75%
Storage Duration
4 – 24 hours
Operational Lifetime
+30 years

By using this website you consent the use of cookies and data collection technologies. To learn more about these technologies and your choices read our Cookie Policy.