Simon Schandert (Founder, CTO) and Daniel Hannemann (Founder, CEO) Valeska Hoischen


Energy Storage Experts

Founded in 2014
50 employees
Funding: €14M
Stage: Other

TESVOLT specializes in commercial battery storage systems. TESVOLT storage systems function just as well at low voltage as at high voltage, and can be connected to all energy producers: sun, wind, water, biogas, and combined heat and power – on-grid and off-grid. All storage systems are produced at TESVOLT’s manufacturing facility in Germany. Website
Highlight of the year: Product launch with SAMSUNG SDI batteries.

Interview with TESVOLT

What inspired you to found your startup?

Green electricity must be produced where it is consumed, and a storage system is required to ensure a constant energy supply.

How are you different? What is your unique value proposition?

Do you know the torch effect? If you put a half-empty and a fully charged battery in a torch, it will only shine as brightly as the weakest battery cell. With our technology, we can charge and discharge every single cell in our systems, and thereby significantly increase their efficiency and lifetime.

How do you define success for yourself and your company?

Success always takes longer than failure.

What do you want to achieve next year?

In the next 12 months we want to focus on internationalization.

Why do people want to work at your company?

Our agile organizational form, allowst everyone to unfold their potential freely.

What has been the most important milestone so far?

Cooperation with SAMSUNG

Looking back at your whole development story — what makes you most proud?

Germany is the land of inventors and engineers. “Made in Germany” can only come from Germany. It fills us with pride to be a part of this history.

Where do you see your company in 5 years?

We will be a technology leader.

What is your impression of launching a startup from your based city?

Martin Luther revolutionized society, and that’s exactly how we’re starting to revolutionize the energy infdustry with our energy storage system.

What is your impression of the german startup scene? Would you change anything?

More financial government support and fewer locusts investors.

TESVOLT was featured in “The Hundert Vol. 10 – Startups of Germany“, November 2018.

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