About Us

We are supporting the renewable energy transition by enabling grids to use more green energy and helping renewable asset owners to secure more value from their assets to further deploy clean power.

Mission Statement

We provide grid operators and renewable asset owners with market-leading and mission-critical technology solutions to accelerate and thrive in the clean energy transition.

Key Achievements

national grid


Project SAMUEL completed and signals sent across a power grid for the first time

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Project SIM completed and power grid inertia measured for the first time

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Innovative commercial PPA framework established with Total Gas & Power

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Landmark deal which tipped Reactive's generation under management to over 500 MWs

Our Team

Marc Borrett, CEO and Co-Founder

Marc Borrett

CEO and Co-Founder

Volker Beckers, Chairman

Volker Beckers


Chris Kimmett, Commercial Director Networks

Chris Kimmett

Commercial Director Networks

Fraser Blunt, Director of Origination

Fraser Blunt

Director of Wholesale Origination

Johanna Doyle, Head of Commercial Delivery

Johanna Doyle

Head of Commercial Delivery

Kevin Coutts, Director of Finance

Kevin Coutts

Director of Finance

Edward Slack, Senior Commercial Manager

Edward Slack

Senior Commercial Manager

Carina Correia

Head of Marketing and PR

Theresa Kennedy, Executive Assistant

Theresa Kennedy

Executive Assistant

Sammy Blay, Senior Manager – Wholesale Origination

Sammy Blay

Strategic Origination Manager

Bob Stonehouse, Operations Director

Bob Stonehouse

Operations Director

Our Offices

Our commercial office is located in London, UK. Our R&D centre is located in Oulu, Finland.

Commercial & Sales Teams
33 Holborn, EC1N 2HT, London, UK
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Technology Centre Team
Elektroniikkatie 8, 90590, Oulu, Finland
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Energising Careers

Do you want to lead the transition to a low carbon energy future by positively disrupting the energy sector? If you are up for the challenge and keen to get involved then have a look at the latest job postings from our commercial team in London or our industry-leading R&D centre in Oulu.

Learn more

marc borrett reactive technologies

Who We Work With



The fund is dedicated to investing in innovative growth companies in renewable and low carbon energy technologies, supporting Equinor’s strategy of growth in new energy solutions.

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Ingenious Infrastructure Ventures EIS Service seeks out high-growth investment opportunities in the energy, communication technology, transportation and resource efficiency spaces, leveraging the wider team’s deep domain expertise.

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Octopus Group manages over £8.5 billion on behalf of more than 50,000 investors, spanning investments, healthcare, energy and property.

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The world’s largest independent renewable energy company with over 16 GW portfolio and the expertise to develop, engineer, construct, finance and operate projects around the globe.