Energy Storage

on the development and financing of a portfolio of UK BESS projects totalling over 3GW of capacity. The lead project is the 1.45GW (2.9GWh) Thorpe Marsh BESS – currently, the largest BESS project under development in the world by MW (power) capacity (larger projects exist on a MWh basis). CMS is advising Fidra on all the critical aspects of the Thorpe Marsh project, including the construction and maintenance contracts, the offtake/optimisation contracts (comprising, tolls, floors and merchant), and the project financing. This will be the largest financing of a battery storage project in the world to date.

on the largest battery portfolio ever financed in Europe in March 2025. Constantine Energy Storage secured a loan of GBP 180 million (USD 232.8m/EUR 213.8m) from a group of lenders to advance a portfolio of nine assets across England and Wales with a combined capacity of 612 MW/1,652MWh.The lender consortium providing the financing package consisted of NORD/LB, Virgin Money, Societe Generale and Export Development Canada.

on the development and financing of the 99MW/198MWh Ocker Hill Battery Energy Storage System project, backed by a 10 year tolling agreement with Smartest, the longest term agreement in the market to date.

on the financing of the toll-backed Bramley storage project (100MW/330MWh), introducing new lenders to the sector.

on its entry into the UK BESS market by acquiring a 50% stake in Coalburn 1 from CIP.

on the development of the ground-breaking Eccles 400MW (800MWh) battery project.

on the development and £200m financing of UK solar and BESS co-located assets by ING, NordLB, Rabobank and Santander UK, a rare co-location portfolio project financing.

on its financing for a 100MW battery project in northwest England with Santander and subsequent financings, including advising on optimisation and BESS and BOP contracts. The planned project in Capenhurst, Chester, would be “Europe’s biggest” grid-connected battery when it begins operations in April 2022.

on its joint venture with BW Group to fully fund the build-out of Penso Power’s pipeline of more than 3GWh of large-scale battery storage projects in the UK.

on the disposal of a 300MW pre construction battery storage portfolio. Our role included drafting and advising on linked EPCM and O&M arrangements.

on the acquisition and equity and debt financing (including drafting and negotiating EPC contracts) of various pre construction battery storage projects.

on the sale and setting up of a battery energy storage system in Slovenia, including the performing of a turnkey EPC/installation services.

in partnership with Octo Energy on identifying and delivering 200MW of hybrid solar and battery storage projects in England and Wales.

on the rollout of its ultra-fast EV charging concept, known as Electric Forecourts, powered by solar power and battery storage.

on various aspects of its energy storage portfolio, including project acquisitions, battery storage supply arrangements, financing structuring and revenue stream arrangements, including participation in the Balancing Mechanism.

on the development of two battery storage projects with a combined capacity of 50MW, including advising on the EFR contract, negotiating the bespoke EPC and O&M arrangements and advising on the resulting joint venture with VPI Immingham.

on the purchase of four c.10MW battery storage projects from Green Hedge that were pre-qualified for the 2016 T-4 Capacity Market, including considering Capacity Market and grid connection issues.

on the co-location of a 1MWh lithium-ion battery with the hywind floating offshore wind farm, including considering issues in relation to the RO and the related offtake arrangements.

Pivot Power on the development of its multi-GW portfolio of battery storage projects, which will be the first transmission-connected battery projects in the UK, including advice on regulatory, structuring, funding issues and the procurement of development and operational contractors.