About TSOHAR.

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Years in Energy Markets

Founded by Grigorii Toulskii, trading since 2008

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Market Operations

Automated trading across day-ahead and intraday markets

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Markets Active

Active in German and Dutch power exchanges intraday spot trading

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Renewable balancing built on more than a decade of operating experience. At fees the incumbents can't match.

TSOHAR was founded in Switzerland by Grigorii Toulskii, who previously founded and exited two European renewable trading ventures. We focus on imbalance management and intraday optimization for wind and solar portfolios across Germany and the Netherlands. Our infrastructure is automated end-to-end, no trading floors, no legacy IT, so the cost we save translates directly into lower fees for asset owners.

TSOHAR was founded in Switzerland by Grigorii Toulskii, who previously founded and exited two European renewable trading ventures. We focus on imbalance management and intraday optimization for wind and solar portfolios across Germany and the Netherlands. Our infrastructure is automated end-to-end, no trading floors, no legacy IT, so the cost we save translates directly into lower fees for asset owners.

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Proprietary Technology
Proprietary Technology

ZOHAR replaces the trading floor. Our in-house ML platform handles forecasting, execution, scheduling, and settlement as a single automated agent, built over 15 years and running 24/7 across European spot markets.

ZOHAR replaces the trading floor. Our in-house ML platform handles forecasting, execution, scheduling, and settlement as a single automated agent, built over 15 years and running 24/7 across European spot markets.

Proven Track Record
Proven Track Record

Two European renewable trading ventures founded, scaled, and exited successfully. At peak, our founder's prior work managed 6 GW of renewable assets and operated as a market-leading white-label provider for direct marketers in Germany.

Two European renewable trading ventures founded, scaled, and exited successfully. At peak, our founder's prior work managed 6 GW of renewable assets and operated as a market-leading white-label provider for direct marketers in Germany.

Swiss Incorporated
Swiss Incorporated

Headquartered in Lutry, Switzerland. TSOHAR operates as an Aktiengesellschaft with CHF 1,000,000 share capital — ensuring regulatory credibility and operational stability.

Headquartered in Lutry, Switzerland. TSOHAR operates as an Aktiengesellschaft with CHF 1,000,000 share capital — ensuring regulatory credibility and operational stability.

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About Image

Leadership.

Leadership.

Grigorii Toulskii — Founder & Managing Director

Grigorii Toulskii — Founder & Managing Director

Grigorii has spent 15 years building and operating in European power markets. Two prior renewable energy trading ventures — both founded, scaled, and exited successfully. At peak, his work managed 6 GW of renewable assets and held a market-leading position for white-label direct marketing in Germany. He has worked directly with EPEX, the Bundesnetzagentur, and Dutch TSOs, and has hands-on engineering depth in .NET, Python, and SQL — the same disciplines underlying ZOHAR. TSOHAR is the third venture in this line, applying that operational track record to a structurally leaner cost base than incumbent market participants.

Grigorii has spent 15 years building and operating in European power markets. Two prior renewable energy trading ventures — both founded, scaled, and exited successfully. At peak, his work managed 6 GW of renewable assets and held a market-leading position for white-label direct marketing in Germany. He has worked directly with EPEX, the Bundesnetzagentur, and Dutch TSOs, and has hands-on engineering depth in .NET, Python, and SQL — the same disciplines underlying ZOHAR. TSOHAR is the third venture in this line, applying that operational track record to a structurally leaner cost base than incumbent market participants.

Grigorii has spent 15 years building and operating in European power markets. Two prior renewable energy trading ventures — both founded, scaled, and exited successfully. At peak, his work managed 6 GW of renewable assets and held a market-leading position for white-label direct marketing in Germany. He has worked directly with EPEX, the Bundesnetzagentur, and Dutch TSOs, and has hands-on engineering depth in .NET, Python, and SQL — the same disciplines underlying ZOHAR. TSOHAR is the third venture in this line, applying that operational track record to a structurally leaner cost base than incumbent market participants.

Lutry, CH

Lutry, CH

Milestones.

Dec 2025
Swiss Commercial Registry

TSOHAR Energy Services AG incorporated in Lutry with CHF 1,000,000 share capital

Apr 2026
Balancing Agreements: Germany

Balancing group contracts signed with German transmission system operators

May 2026
Balancing Agreement: TenneT NL

Balancing group contract signed with TenneT Netherlands, covering Dutch power market operations

Jul 2026
EPEX Spot Admission

Regulatory admission to EPEX Spot for day-ahead and intraday trading in Germany and Netherlands, API integration live

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Jul 2026
EPEX Spot Admission

Regulatory admission to EPEX Spot for day-ahead and intraday trading in Germany and Netherlands, API integration live

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Jul 2026
Power Plant Pricing Launch

Start of power price optimization and direct marketing pricing for wind and solar park operators in Germany

Jan 2027
Balancing and Direct Marketing Launch

Launch of white-label balancing group management and direct marketing for wind and solar park operators in Germany

Ready to work with TSOHAR?

For utilities, independent power producers, and institutional participants in European short-term power markets.

Get in touch

Ready to work with TSOHAR?

For utilities, independent power producers, and institutional participants in European short-term power markets.

Get in touch

Ready to work with TSOHAR?

For utilities, independent power producers, and institutional participants in European short-term power markets.

Get in touch