S4 Energy - Who and where

Why and What

Battery storage is key to addressing climate change and the transition to a more sustainable energy future.

Renewable energy sources are domestic and inexhaustible reducing vulnerability to supply disruptions and geopolitical tensions. But they are intermittent.

Energy storage is a critical for transforming our energy systems into being cleaner, more reliable, and more efficient. It supports the integration of renewables, enhances grid stability, provides backup power, reduces emissions, and offers numerous economic and environmental benefits.

Who and Where

S4 Energy develops, owns, and operates grid-scale battery storage projects. Our expertise, state of the art equipment and sophisticated software unlocks the power of energy storage.

We use proven technology to store energy, including our own unique, patented KINEXT storage units.

Based in the heart of Rotterdam, S4 Energy operates projects in several locations in the Netherlands and is rapidly expanding across Europe.

Read more about our technology.

S4 Energy - Machinery in warehouse.
MWh of
operational projects
MWh pipeline in
development by 2028
CO2 tonnes saved
Live projects

Our process

Driving the process from origination to operation


Assessing potential sites, resources, and market opportunities


Obtaining necessary permits, land or existing facilities required


Securing the funding required to develop and construct the site


Construction including the battery systems, inverters, and monitoring equipment


Day to day management, maintenance, and power optimisation
read more about our process

Innovative technology

S4 Energy's unique flywheel and creative algorithms ensure longer life spans and sustainable stable power.


What our partners say

When I wanted to make my business more sustainable and was looking for a way to heat my greenhouses without CO2 emissions, I made the choice to partner with S4 Energy. In S4 Energy, I found the team to develop the plan from concept to reality. S4 Energy has completely taken care of everything for me, and soon there will be an energy storage installation here that helps reduce grid congestion and heats my greenhouses!

Kees Hoogendoorn
Owner, Tuinderij Hoogendoorn

As an energy producer and supplier, we understand the importance of having flexibility in the electric grid, especially in today's context. The importance is only set to increase in the future. We trade the capacity of S4 Energy's current energy storage systems, which has bolstered our portfolio with a substantial share of flexible capacity.

Fredrik Troost
Senior Structurer, Eneco Energy Trade


What's new with
S4 Energy