About us

Leading the energy transition. Discover SieStar Smart Energy Storage.

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About us

Our mission

We offer companies innovative ways to control their energy.

Our vision

By holding the reins ourselves from design, assembly, testing, commissioning, monitoring and service, we offer a total solution and make ourselves strong as: Being the preferred partner in smart energy storage and energy management solutions for business on the road to the emission-neutral society

Our core values

Is what we stand for as a team today and tomorrow.
Collaboration Externally and internally with customer as partner.
Commitment We move fast forward, are committed doers with an eye for quality.
Respect We treat colleagues, customers, suppliers and environment with respect.
Open To new ideas, working methods and no-nonsense communication.
Original Building on our multi-industry knowledge and experience, we work in an innovative and customer-oriented way.
Possibilities We think in terms of possibilities to make it happen, to grow and more.

Two close-by Dutch companies join hands

SieStar B.V. founded in November 2023, combines under one roof the complementary knowledge and experience of two reputable Zeeland companies, SieTec - specialist in industrial automation - and EmergoStar - developer and producer of battery modules

Development, production, installation, service and monitoring, all in-house!

SieStar - the stationary smart battery solutions - meet the requirements of the SPRILA grant!

10 maart 2025

SPriLA grant applications are possible from 26 March 2025 When fast charging and/or simultaneous charging of multiple electric vehicles, as an SME or large enterprise you run into the limited grid connection or Contracted Transmission Capacity

SieStar - Made in Holland - helps manufacturing company in Bergen op Zoom

30 januari 2025

Grid congestion - no expansion of CTC/GTV possible! SieStar C10 helps in supplying energy needs during working hours. Charging the battery from the grid e/o optimise own PV generation. Now 430 kWh - in future 645 kWh

Preserving with SieStar at Camping Olmenveld - Made in NL -

20 december 2024

SieStar - Made in Holland - - design and production of LFP battery modules - design and production of the battery energy storage system - development and management of the EMS - 24/7 support from our HQ in Terneuzen. 15+ years expertise

SieStar in SeaPort Magazine: innovative battery solutions for the energy transition

10 oktober 2024

SieStar shares their vision of battery energy storage as key to the energy transition in SeaPort Magazine. Find out how they help companies alleviate grid congestion and manage energy smarter. Read more about their innovative solutions in the article

Webinar with SieStar and KicMPi

19 september 2024

On 19 September, SieStar and KicMPi organised a successful webinar on energy transition. Marijn Cammaert and Erwin Van Assel shared insights on battery energy storage and smart energy management. Watch the missed webinar now via the KicMPi website.

SieStar C10 BESS installed at ONS BUITEN for renewable energy storage

22 juli 2024

OUR BUITEN is taking a big step towards sustainability with the installation of SieStar C10 battery storage. Read how this collaboration optimises their energy management and how the successful deployment during Trekkertrek was the deciding factor.

SieStar – The Game Changer 2023

27 december 2023

Junior Chamber Zeeuwsch-Vlaanderen set the bar high again last Friday for Zeeuws-Vlaanderen's annual B2B event. FestiBO was the theme of this edition, which took place on Friday 24 November last at the Leutfabriek in Sas van Gent.