Archimedean Screw Specialists

Mann Power Hydro Ltd was established in 2004 by Dave Mann. With a background in seismic and electronic engineering, Dave pursued a successful 15-year career in technical project management around the globe. On returning to the UK he took the opportunity to turn his lifelong passion for the potential of hydropower into a career – forming MannPower as an independent consultancy.

Seeking a viable hydropower solution for a Georgian watermill within an SSSI on the River Derwent in Yorkshire, MannPower’s extensive research led them to the Archimedean Screw turbine. With its fish-friendly characteristics and high efficiency rates it was perfect for the job. Dave and his company were so impressed with the benefits of the Archimedean Screw turbine that they pioneered its introduction to the UK. Dave has since been a regular speaker at British Hydropower Association conferences and seminars.

MannPower has designed and installed many dozens of schemes using machines from several of the leading manufacturers, and became the senior consultancy specialising in this technology, branching out into waterwheel projects. Now part of the TLS Group, the MannPower team continues to design and procure for new screw installations throughout the UK and Ireland as well as providing expert consultancy services and maintenance engineering services for operational hydropower schemes using screws and other technologies.

Meet The Team

Dave Mann

Hydropower Director

Dave launched MannPower in 2004 and led its expansion and technical development to design, deliver, and improve many dozens of new small- and micro- hydropower schemes. On MannPower’s acquisition by TLS Energy in 2020, Dave continues to head the experienced team providing hydropower engineering and consultancy services to MannPower clients and the renewables assets of TLS Energy.

email dave

Adrian Clayton

Hydro Engineer

As a hydropower engineer and project consultant, Adrian oversees the design, consenting, installation and commissioning of Archimedean Screw hydropower schemes.

email adrian

Harry Chase

Hydro Engineer

As a field engineer with experience in Archimedean Screw hydro and related plant, Harry carries out maintenance programmes and enhancement projects on behalf of our TLS and MannPower clients.

email harry

Peter Goodall

Hydro Engineer

As a field engineer with wide experience in different types of hydropower, Peter carries out maintenance programmes and enhancement projects on behalf of our TLS and MannPower clients.

email peter

Engineering Interns

Over the years we have offered internships to many aspiring renewables engineers, working out of TLS’s Malton or outer London office. We are happy to hear from graduate-calibre or experienced hands-on would-be hydropower engineers, in case we have a new opportunity to offer a temporary internship in TLS Group’s engineering operations.

email enquiries

Georgie Hornby

Accounts Manager

Georgie manages company accounts for MannPower / TLS Renewable Consulting. Her main duties include keeping the rest of the engineers on track and to account!

email georgie