Grid-scale BESS

Accelerating a reliable and flexible energy system.

Empowering grid resilience

Battery Energy Storage Systems (BESS) represent a pivotal advancement in modern energy infrastructure. By acting as a dynamic energy buffer, battery systems enhance grid resilience, ensuring a steady and reliable energy supply.

With the right technology, they adapt instantly to demand fluctuations, providing stability to the grid and laying the foundation for a sustainable energy future.

Elevating the energy landscape

Leveraging its core in advanced asset optimization, Flower is rapidly emerging as a leading project developer for grid-scale batteries, trusted by European grid owners on both the transmission and distribution network.

“We increased our revenues by 30% with Flower”

In late 2025, energy asset owner Ra Energy decided to switch to Flower as an optimizer of their assets. During spring 2026, the company had increased its revenues by approximately 30% compared to the same period the year before.

Internally-developed projects

Building on an established core in advanced asset optimization and trading, Flower is also emerging as a leading grid-scale developer across Europe.

Hamburg’s largest BESS

Celebrating the official groundbreaking of Flower’s 100 MW / 400 MWh battery system in Bergedorf, Hamburg.
Flower’s first internally-developed BESS

In 2024, a 15 MW battery park outside Gothenburg became Flower’s first internally-developed battery system.

Redefining precision

With Flower’s advanced optimization platform, grid-scale battery systems are not only seamlessly controlled to maximize asset value, but are adapted in real time according to grid needs. Taking an end-to-end approach to flexibility, managing critical areas like dispatching, prequalification, project development and optimization all in-house, Flower gains trust from grid operators and asset owners across Europe.

What we do

Flower redefines how renewable energy is managed. Through industry-leading optimization and trading of energy assets like wind and solar farms, battery systems, and EV chargers, we make renewable energy reliable and predictable, leading the charge towards the energy system of tomorrow. Building on our core capabilities, we are also emerging as a leading grid-scale BESS developer, trusted by grid owners across Europe.

Who we serve

Green Baseload

Solar power

Wind power

Demand response

DERs

Join the next frontier

Are you looking for a leading optimizer to maximize the value of your energy assets? Or are you a top talent who wants to be part of shaping tomorrow's energy system?