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Portrait of Sarah Grenfell

Sarah Grenfell


CMS Cameron McKenna Nabarro Olswang LLP
Cannon Place
78 Cannon Street
United Kingdom
Languages English

Sarah Grenfell is a solicitor-advocate and Partner in our Infrastructure, Construction and Energy (ICE) Disputes Group. 

Sarah advises clients on disputes avoidance and all forms of dispute resolution in the infrastructure, construction and energy sectors. Specialising in high-value, complex disputes, Sarah has advised clients on projects around the globe, including the UK, Central and Eastern Europe, CIS countries, India, the Middle East, North and East Africa, Australia and Asia.

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Relevant experience

  • A Japanese EPC contractor in respect of disputes arising from a USD 7 billion refinery project in the Middle East. 
  • A middle eastern power producer in respect of issues arising from the construction of a CCGT power plant. 
  • A national oil company in a US$1.4 billion ICC arbitration against an international oil company concerning crossflows between adjacent oil blocks offshore.  
  • One of the world’s largest investor-owned energy companies in relation to damage caused to subsea cables and associated repair works. 
  • A large Russian energy company in relation to an LCIA arbitration concerning disputes arising under a sale and purchase agreement.
  • An independent power producer in an LCIA arbitration concerning the pricing of natural gas in Israel. 
  • A multinational oil and gas company in arbitration proceedings against one of the largest multinational oil and gas service companies in relation to the redevelopment of an oil field in Iraq. 
  • A JV main contractor on a multi-billion dollar dispute in relation to civil works in Dubai, involving substantial delay and disruption claims.
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  • 2015 - Admitted as a solicitor of the Supreme Court of England and Wales.
  • 2004 - LLM University of Queensland, Australia 
  • 2003 - Admitted as a solicitor of the Supreme Court of Queensland, Australia.
  • 2002 - LLB University of Queensland, Australia
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15 March 2021
King­dom of Saudi Ar­a­bia: The re­cent Su­preme Court De­cision on con­tracts...
The Gen­er­al As­sembly of the Su­preme Court of Saudi Ar­a­bia, the highest ap­peal court in the King­dom, re­cently pub­lished a de­cision (No. M/45/M dated 08/05/1442AH) set­ting out ju­di­cial prin­ciples to be...
14 September 2020
Con­tract as­sess­ment – Risks and op­por­tun­it­ies
Over the past 6 months, many busi­nesses have been forced to as­sess their con­trac­tu­al rights, ob­lig­a­tions, and as­so­ci­ated risks as a res­ult of COV­ID-19. Some of these risks are ob­vi­ous, for ex­ample, the...
07 August 2020
Treaty claims for can­celled or mod­i­fied in­fra­struc­ture pro­jects in the...
A re­cent IC­SID tribunal has denied an in­vestor’s claim con­cern­ing the de­vel­op­ment of an air­port pro­ject in Latvia. The in­vestor was un­able to pro­ceed with the con­struc­tion of its pro­ject due to nu­mer­ous...
27 May 2020
Law and reg­u­la­tion of con­sequen­tial dam­ages clauses in the en­ergy sec­tor...
1. Do the words “con­sequen­tial loss” have a giv­en mean­ing in law? Yes. Aus­trali­an law fol­lows the ap­proach taken by the Eng­lish courts to the as­sess­ment of dam­ages set out in the case of Had­ley...
17 February 2020
“Each prob­lem that I solved be­came a rule, which served af­ter­wards to solve...
René Descartes’ treat­ise “Dis­course on the Meth­od” (1637) was un­usu­al for its time, be­ing writ­ten in French (rather than Lat­in) so that it could be read by a wider audi­ence than aca­dem­ics and fel­low...
27 November 2019
In­vest­ment ar­bit­ra­tion and con­struc­tion con­tracts: jur­is­dic­tion over an­cil­lary...
A re­cent IC­SID tribunal has up­held jur­is­dic­tion over a dis­pute con­cern­ing an al­leged set­tle­ment agree­ment arising from con­tract­or claims on a ma­jor in­fra­struc­ture pro­ject in the Re­pub­lic of Mozam­bi­que...
11 October 2019
Quantum meruit claims after ter­min­a­tion: a chan­ging of the tide?
A de­cision of the Hight Court of Aus­tralia earli­er this week has held that resti­tu­tion­ary claims on a quantum meruit (i.e. reas­on­able price) basis by con­tract­ors after the ter­min­a­tion of a con­struc­tion...
30 July 2019
Oil & Gas: Bunker Sup­ply Con­tracts Re­vis­ited
In Cock­ett Mar­ine Oil DM­CC v Ing Bank NV & An­or [2019] EWHC 1533 (Comm) the Com­mer­cial Court dealt with the latest round of the OW Bunker saga. (See, for ex­ample, our Law-Now from 2016 on PST En­ergy 7...
14 February 2019
EU Mem­ber States ad­opt de­clar­a­tion on the ter­min­a­tion of all bi­lat­er­al...
On 15 Janu­ary 2019, rep­res­ent­at­ives of EU Mem­ber States made the first form­al step to­wards end­ing bi­lat­er­al in­vest­ment pro­tec­tion treat­ies signed between EU Mem­ber States (“in­tra-EU BITs”) when they...
03 August 2018
Brazil Min­ing Auc­tion Rounds
The Brazili­an gov­ern­ment has pub­lished a pre­lim­in­ary draft of the bid doc­u­ments for an un­pre­ced­en­ted auc­tion of two large min­ing areas. The areas on of­fer in­clude Can­di­ota (Rio Grande do Sul) which con­tains...
19 July 2018
Tax in­dem­nit­ies in in­ter­na­tion­al M&A: when does tax be­come pay­able?
In Min­era Las Bam­bas SA & An­or v Glen­core Queens­land Ltd & Ors [2018] EWHC 1658 (Comm), the Com­mer­cial Court de­cided that VAT was not “pay­able” for the pur­poses of a tax in­dem­nity in a share pur­chase...
09 March 2018
CJEU rules against ar­bit­ra­tion clauses in In­tra-EU Bi­lat­er­al In­vest­ment...
On 6 March 2018, the Court of Justice of the European Uni­on (CJEU) ruled that Art­icles 267 and 344 of the Treaty on the Func­tion­ing of the European Uni­on (TFEU) must be in­ter­preted as pre­clud­ing ar­bit­ra­tion...