About Otark

Accelerating the energy transition.

Clean energy must be easily accessible to every business. We combine deep market expertise with intelligent technology to radically simplify PPA procurement – transparent, efficient, and without unnecessary barriers.

Our Mission

Making clean energy procurement effortless

The energy transition requires businesses to move from traditional power sources to renewable energy. But PPA procurement has been stuck in the past—fragmented, opaque, and painfully slow. We're changing that.

Transparency

No hidden fees, no complex structures. Just clear, honest pricing and terms.

Speed

From inquiry to signed PPA in weeks, not months. Time is too valuable to waste.

Expertise

Deep energy market knowledge combined with technology to deliver better outcomes.

Leadership

Meet our Energy & Tech Experts

Jan and Ortwin bring decades of combined experience in energy markets, trading, and technology.

Jan Quecke

Co-Founder & CEO

Entrepreneur and clean energy expert with 18 years of experience in energy, marketing & sales, and finance. As Managing Director, he led and scaled wind energy producer SL Naturenergie from €10M to €200M in revenue. Development of new wind farms in NRW. Partnerships with utilities. Managing energy production and sales.

Ortwin Kartmann

Co-Founder & COO

Tech entrepreneur and digital expert with 20 years of experience in product development, engineering, and business development. Co-founder of Sofortüberweisung, one of Germany's largest payment methods (exit to Klarna). Co-founder of Shopgate, SaaS market leader in mobile commerce & omnichannel services, active in the EU and the US.