Aerial view of a modern arched bridge spanning a cityscape with industrial buildings and a highway, with a distant city skyline.

COWI

6th Street Viaduct, Los Angeles, USA

COWI is a leading civil, structural and geotechnical engineering consultancy with extensive knowledge and experience in bridge, tunnel, marine and specialist infrastructure. Our passion and expertise enables us to deliver technically excellent, value engineered solutions.

COWI employs around 6,200 employees working across a broad range of engineering and development disciplines from 90 offices worldwide.

COWI logo in orange text

Bevis Marks House

24 Bevis Marks

London

EC3A 7JB

Scenic view of a lake bordered by a forest and mountains under a clear sky.

Project Spotlight

Coire Glas pumped hydro storage, Scotland

Challenge

To fully utilise the potential of renewable energy, we need to bridge the gap at transmission level during periods of low offshore wind output and be able to store excess wind energy during high wind periods.

Solution

A pumped hydro scheme that will use surplus renewable energy to pump water to the upper reservoir and promptly provide electricity to the grid when needed for long periods of time.

Value

With its 30 GWh of storage capacity, Coire Glas would more than double Great Britain’s existing electricity storage capacity and power up to three million homes.