Energy Storage

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Our early work in designing and implementing modern energy markets and subsequently guiding the sector in the push to decarbonisation means CMS is not only a transactional or project adviser to the sector, but uniquely placed to help shape its present and future. 

CMS has a market-leading energy storage practice with extensive experience advising in relation to a variety of storage projects, including standalone, co-location and behind-the-meter projects, across a range of technologies.

Our recent experience related to energy storage includes advising:

  • Zenobe Energy 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.
  • Penso Power 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.
  • Statera on the disposal of a 300MW pre construction battery storage portfolio. Our role included drafting and advising on linked EPCM and O&M arrangements.
  • Field on the acquisition and equity and debt financing (including drafting and negotiating EPC contracts) of various pre construction battery storage projects.
  • Tesla on the sale and setting up of a battery energy storage system in Slovenia, including the performing of a turnkey EPC/installation services.
  • EDF Renewables UK in partnership with Octo Energy on identifying and delivering 200MW of hybrid solar and battery storage projects in England and Wales.
  • Gridserve on the rollout of its ultra-fast EV charging concept, known as Electric Forecourts, powered by solar power and battery storage.
  • Eelpower 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.
  • Low Carbon 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.
  • Anesco 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.
  • Equinor 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.

To find out more about other related services you can visit the Energy & Climate Change expertise section

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18/05/2022
On-site power solu­tions
A guide for large en­ergy users Across Europe there is a clear and con­sist­ent trend for large scale com­mer­cial and in­dus­tri­al users of elec­tri­city ad­opt­ing on-site power solu­tions. This is the res­ult of a range of factors, in­clud­ing:re­new­able on-site gen­er­a­tion be­ing one of the most clear-cut ways to help “green” a site’s elec­tri­city sup­ply and help the com­mer­cial/in­dus­tri­al user achieve their cli­mate change tar­gets;on-site power solu­tions hav­ing the abil­ity to provide re­si­li­ence of elec­tri­city sup­ply dur­ing times of sys­tem out­age or con­straint;avoid­ance of the net­work and policy charges typ­ic­ally as­so­ci­ated with elec­tri­city taken from the grid; an­dthe com­mer­cial op­por­tun­it­ies from lever­aging flex­ible on-site power solu­tions to re­duce con­sump­tion from the grid and/or to ex­port elec­tri­city onto the grid.However, while such op­por­tun­it­ies mean that on-site power solu­tions are of­ten an at­tract­ive op­tion, on-site pro­jects will gen­er­ally come with a com­plex ar­ray of leg­al op­tions and con­sid­er­a­tions. These range from:the fun­da­ment­al point that such pro­jects in­her­ently in­volve par­ti­cip­a­tion in a typ­ic­ally heav­ily-reg­u­lated arena (and of­ten the back­drop of a set of reg­u­la­tions rap­idly evolving to keep pace with the sec­tor), toa range of pro­ject/agree­ment struc­tures and parties (without a “cook­ie cut­ter” ap­proach) in­volved in pro­ject own­er­ship, op­er­a­tion and elec­tri­city sale and pur­chase, with sig­ni­fic­ant co-de­pend­ence between such parties, toa gov­ern­ment policy con­text that (while at face value of­ten pro-green) is of­ten in­creas­ingly con­cerned about grid and policy charges be­ing avoided through these types of pro­ject and wishes to see all mar­ket par­ti­cipants pay­ing a per­ceived fair share of such costs. In this guide we provide an over­view of these chal­lenges and op­por­tun­it­ies in Europe, with a view to as­sist­ing you in re­view­ing, up­front, the key is­sues of­ten as­so­ci­ated with on-site power solu­tions of this nature. 
18/12/2020
CMS Ex­pert Guide to re­new­able en­ergy law and reg­u­la­tion
Down­load our ded­ic­ated "Re­new­ables guide" pdf by click­ing on the link be­lowRe­new­ables guideIn­tro­duc­tionThis guide in­cludes con­tri­bu­tions from some of the most act­ive law­yers in the re­new­ables sec­tor across the globe. 2020 has been a year of un­pre­cede
28/06/2022
CMS ad­vises on sig­ni­fic­ant UK bat­tery stor­age fin­an­cing
In­ter­na­tion­al law firm CMS has ad­vised Har­mony En­ergy In­come Trust plc (the “Com­pany”), an ex­tern­ally man­aged com­pany that in­vests in en­ergy stor­age as­sets in Great Bri­tain, in re­la­tion to a £60,000,000...

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16/11/2022
The Fu­ture of Re­new­ables Sem­in­ar and Drinks Re­cep­tion
Our next Fu­ture of Re­new­ables ses­sion of 2022 is a re­turn to in-per­son net­work­ing in Ed­in­burgh, with speak­ers from CMS and Green Cat look­ing at cur­rent hot top­ics af­fect­ing En­ergy pro­jects across Scot­land...
29/09/2022
CMS closes series of high-pro­file bat­tery stor­age deals
In­ter­na­tion­al law firm CMS has closed five sig­ni­fic­ant bat­tery stor­age deals in re­cent months, re­in­for­cing the firm’s mar­ket-lead­ing po­s­i­tion in this space.  These in­clude: Ad­vising Zen­obē on two...
28/07/2022
CMS helps the Neu­Con­nect pro­ject reach Fin­an­cial Close
With on­go­ing sup­port from CMS, Neu­Con­nect Bri­tain Lim­ited and Neu­Con­nect Deutsch­land GmbH & Co. KG (to­geth­er Neu­Con­nect) have achieved fin­an­cial close on their £2.4bn (EUR 2.8bn) elec­tri­city in­ter­con­nect­or...
20/10/2021
UK En­ergy Sec­tor: Sum­mer of Change
The sum­mer of 2021 may well shape the UK en­ergy sec­tor (and the re­lated sec­tors it im­pacts) for many years to come. Ofgem and BEIS re­leased over forty con­sulta­tions from June to Septem­ber. Some of these...