Danish renewable investment firm Copenhagen Infrastructure Partners (Cip) has partnered with UK-based energy storage provider Alcemi to develop, build and operate 4GW worth of energy storage assets across the UK.

The 4GW portfolio is intended to support the country’s integration of renewable energy capacity and its efforts to reach net-zero emissions by 2050.

CIP senior partner Christian Skakkebæk said: “We are pleased to partner with Alcemi on such an exciting portfolio of large-scale battery energy storage projects.

“We expect these projects to enable a cost-efficient transition towards the low carbon, highly resilient power generation sector in the UK.

“We look forward to supporting Alcemi in the development of these projects and adding value through our own activities.”

The projects are being built at strategic locations to support the power transmission systems and also minimise the impact of network constraints.

They are all currently in late stages of development.

All the energy storage facilities will have capacities of between 300MW and 500MW, with the potential to provide a storage duration of up to four hours.

Upon completion, they are expected to reduce both consumer energy costs and the carbon intensity of the UK’s power sector.

Under the partnership, Alcemi will develop the projects, while CIP will be responsible for procurement activities.

Construction works are scheduled to begin next year, with further projects planned to enter the construction phase on a regular basis.

Alcemi CEO Mark Williamson said: “We are thrilled to work with such a significant and strategic partner as CIP.

“This is an important step to enable the build-out of our portfolio of energy storage projects, making a significant contribution towards achieving net-zero by 2050.”

Last month, CIP partnered with Bute Energy through its Copenhagen Infrastructure IV K/S fund to deliver onshore wind and solar projects in Wales, UK.