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Flexibility projects

Storage assets for Europe's power markets

We develop, finance, build and operate battery storage that earns from Europe's flexibility markets: frequency reserves such as FCR, capacity markets and energy arbitrage. One team owns the asset from the first site visit to long-term operation.

Explore Cubex EMS

How we deliver

From site to revenue

  1. High-voltage substation seen through its perimeter fence01

    Develop

    BESS project development: siting, grid access and market entry.

  2. Business meeting around a table with laptops02

    Finance

    Flexible, diversified capital through our Hong Kong hub.

  3. Line worker in a hard hat and harness connecting overhead power lines03

    Build

    An efficient supply chain and local delivery in Europe.

  4. Transmission lines crossing a rapeseed field under a blue sky04

    Operate

    Long-term operation through Cubex EMS, with trading by our partner.

Revenue

Where the revenue comes from

  • Frequency regulation

    Frequency containment reserve (FCR) and other ancillary services that keep grid frequency stable.

  • Energy trading

    Wholesale trading and price arbitrage.

  • Capacity reserve

    Participation in capacity markets and reserve services.

Cubex EMS connects the asset to our trading partner, who stacks these streams so one asset earns from several markets at once.

Funding capability

Capital to build what we design

Our investment platform puts priority on frequency-regulation storage, backed by institutional funds and international private investors.

Project pipeline

100+ MW

Assets under an investment agreement for Europe's ancillary services markets

Case study · Finland

C&I storage earning in Finland's frequency market

A Cubex system is live on the Finnish grid in the distributed frequency market. It is pre-qualified by the Finnish TSO and earns across several markets at once, for steadier returns.

  • Grid-connected

    Live on the Finnish grid in the distributed frequency market

  • Pre-qualified

    Approved by the Finnish TSO for frequency services

  • Multi-market

    Earns in several markets at once, for steadier returns

The hardware

Built for grid-scale assets

Cubex-5000-DC 20 ft battery container in light grey with service doors and a liquid cooling unit at one end

Container BESS · DC block

Cubex-5000-DC

5 MWh in one 20 ft container

Rated capacity
5.015 MWh
Rated power
2507 kW
Cubex-261-DC outdoor battery cabinet in light grey with the Cubex logo, status lights and emergency stop on the door

Outdoor cabinet · liquid-cooled

Cubex-261-DC

261 kWh in one outdoor cabinet

Rated energy
261.2 kWh
Charge / discharge
0.5 C

Have a site or a portfolio in mind?

Tell us the location, grid connection and target market. Our project team will assess it with you.

Need to attach a load profile or drawing? Use the full contact form or email sales@cubex.energy.