Meet an Unreasonable Venture
Orbital Marine Power
Enabling low-cost tidal energy with the most advanced tidal turbine in the world
Orbital Marine Power has developed an innovative floating tidal turbine technology that harnesses renewable energy from tidal stream currents, generating predictable, low-carbon power to help tackle climate change. Based in Scotland, the company has demonstrated its proprietary solution for over 15 years in harsh tidal conditions. Orbital’s design lowers costs, simplifies maintenance, and engages established supply chains. It is now focused on delivering commercial tidal energy projects worldwide.
Notable Achievements
- Raised and deployed $100M+ [$58M+ in equity] across development and commercialisation programmes.
- Secured long-term revenue off-take contracts [worth ~$260M] to underpin first commercial projects.
- Market offtake agreements exist or are in development across multiple global markets.
Currently Operating in Two Regions
Press Mentions
July 22, 2025
The companies using tides, seaweed and sewage to help power the UK's green economy
Companies taking on these challenges need "more time, more capital and more operational complexity than traditional tech or consumer startups," says Daniel Epstein, Founder and CEO of Unreasonable...
Read on Sifted »More Ventures in Energy & Environment
Get the Unreasonable Newsletter
Get monthly updates on Orbital Marine Power and all of the other ventures working to solve global challenges.