Grid stability solutions provider Reactive Technologies announced today that it has raised £25 million (US$31.4 million) in a Series D funding round, with proceeds aimed at supporting the company’s global expansion.

Founded in 2010, UK and Finland-based Reactive Technologies provides grid resilience technology aimed at helping grid operators, utilities, and regulators transition to net zero and ensuring resilient and renewable grids. The company’s solutions provide grid operators with accurate, real-time measurement of grid stability and inertia, enabling the ability to maintain a steady frequency, in addition to measuring system strength and providing real-time insight for energy traders.

According to Reactive Technologies, the company’s solutions address challenges facing grid operators as renewable energy deployment accelerates, such as diminishing inertia and system strength, driving a need for grid stability solutions. The company estimated that its “GridMetrix” technology is saving approximately 18 million tons of CO2 annually in the UK, with emissions reduction expected to rise significantly going forward, as greater measurement data enables National Grid ESO to safely operate with lower levels of stability.

The funding announcement comes on the heels of Reactive Technologies’ entry into the US market, with a large-scale demonstration project in New York State in collaboration with multiple utilities. The company is planning additional projects in the US, Asia, Europe, and the Middle East. Cellugy estimated that globally, GridMetrix has the potential to mitigate 1,450 million tons of CO2 annually.

The funding round was led by M&G’s Catalyst investment, alongside UK and Ireland growth capital investor BGF and Breakthrough Energy Ventures.

Reactive Technologies’ CEO Marc Borrett said:

“This investment from M&G along with our existing investors, BGF and BEV, marks another significant milestone for Reactive Technologies. As we deliver more projects to support the global transition to Net Zero, this backing will empower us to deliver at scale, expand our commercial presence internationally, innovate further, and make a real contribution to a clean energy future.”

M&G launched Catalyst in 2021, establishing an impact-focused investment team within its Private & Alternative Assets business, established with a £5 billion allocation targeting investments in sustainability-focused privately owned enterprises.

Zachary Webb, Head of EMEA Investments in Catalyst at M&G Investments said:

“Energy transition is a central theme to our strategy in Catalyst as we seek to invest in innovative solutions that drive environmental progress while delivering sustainable returns for investors. We are proud to back Reactive Technologies, which is fast becoming a British success story. Our investment will support the company’s international expansion, potentially transforming how grid systems operate worldwide to reduce unnecessary carbon emissions.”