Picture of Cecilia Weijden

Cecilia van der Weijden


Atrium - Parnassusweg 737
1077 DG Amsterdam
PO Box 94700
1090 GS Amsterdam
Languages Dutch, Italian, English, German, Chinese

Cecilia van der Weijden is a member of the Corporate Practice Group and heads the Dutch Energy team at CMS. She has a strong focus on the energy industry. For more than fifteen years she has been dedicated to advising the energy sector on a wide variety of corporate and regulatory issues, including mergers and acquisitions and the development and project financing of (renewable) energy projects.

As a transactional lawyer, Cecilia got acquainted with the energy sector in the late ‘90s, when a wave of mergers and acquisitions took place in the Dutch energy sector. She then expanded her practice to advice on conventional and renewable energy projects and now has a strong focus on renewable energy (on- and offshore wind, solar, biomass and biogas projects).

Cecilia has advised on a number of pathfinder projects, such as the development the first Dutch offshore wind park (OWEZ), the participation of launching customers in the GATE LNG Terminal, the successful participation of DONG Energy in the first Dutch offshore wind tender, the acquisition, development and project financing of the largest solar PV park and the conclusion of two large corporate PPAs by global tech companies.

Cecilia is a member of the Dutch Association for Energy Law (NEvER) and the Dutch Association for Wind Energy (NWEA). She frequently publishes articles on developments in the energy sector and is editor of the CMS Guide for offshore wind in North West Europe.

Cecilia is praised for her work by clients in Chambers and Legal 500 and received a Client Choice Award 2018 in the category Energy & Natural Resources, a recognition for those partners around the world that stand apart for the excellent client service they provide.

more less

"Cecilia van der Weijden is a corporate finance expert who heads the CMS energy practice. She advises on a broad range of projects especially in the renewables sectors together with regulatory regimes."

The Legal 500, 2019

Transactional lawyer Cecilia van der Weijden is praised as "brilliant and very efficient"

Chambers Europe, 2018

Relevant experience

  • Advised Partners Group on the acquisition of a substantial interest in the ProjectCo owning the project rights for Dutch offshore windpark Borssele III/IV (Sellers: Shell, MVOW and Eneco).
  • Advised WIRCON GmbH on the acquisition, development and project financing of the (at the time) largest solar park in the Netherlands, SunPort Delfzijl.
  • Advised Ørsted on the first and second offshore wind tender organised by the Dutch government regarding the Borssele wind area.
  • Advised Microsoft on a Power Purchase Agreement (PPA) with Vattenfall to source ITS Dutch datacenters with wind energy from new to be built windpark Wieringermeer.
  • Advised Tesla on its contracts for engineering, procurement and construction of the Powerpack (battery for industrial use) and the Powerwall (battery for consumer use) and any related registrations and permitting and consent requirements in the Netherlands.
  • Advised German windturbine manufacturer ENERCON GmbH on the acquisition of Dutch turbine supplier Lagerwey.
  • Advised a global tech company (confidential) on a Power Purchase Agreement (PPA) with ENECO to source its Dutch facilities with renewable energy.
  • Advised national and international solar PV developers and investors (confidential) on the SDE+ subsidy and on several project agreements for solar PV plants in the Netherlands, including PPAs, grid connection agreements and agreements to secure property rights.
  • Advised Low Carbon on a development service agreement with a Dutch party for the development and operation of solar PV plant and rooftop projects in the Netherlands.
  • Advised PRISMA European Capacity Platform GmbH and its shareholders (European TSOs) on regulatory implications of the development of new services on its trading platform.
  • Advised Nederlandse Spoorwegen (NS) on an agreement with Fudura for metering of electricity, gas and heat and administrative services. 
  • Advised EPEX SPOT SE, EEG AG and Powernext SA on the merger with APX Group and the integration of their businesses to form a power exchange for Central Western Europe and the UK.
  • Advised Cheung Kong Infrastructure Holdings Ltd. (CKI) on the acquisition of waste-to -energy company AVR (EUR 943.7 million). 
more less


  • International Relations (int. economy and law), Johns Hopkins University, USA

  • Dutch Law (Commercial and Private Law), University of Amsterdam

  • Chinese Language, Xiamen University, China

  • Sinology, Leiden University

more less


Show only
Res­ults of SDE+ sub­sidy 2018 au­tumn ap­plic­a­tion round...
Neth­er­lands an­nounces Heat Act 2.0
As Dutch law­makers await the re­vised Heat Act – ad­op­ted by Par­lia­ment on 3 Ju­ly 2018 – to enter in­to force on 1 Janu­ary 2020, an­oth­er bill to amend this act is already be­ing pre­pared.   This bill, which the Min­istry of Eco­nom­ic Af­fairs and Cli­mate calls the.
Top rank­ings CMS in The Leg­al 500 EMEA 2019
Tender reg­u­la­tion pub­lished for the up­com­ing Dutch off­shore wind tender
On 3 Decem­ber 2018, the Min­is­ter of Eco­nom­ic Af­fairs and Cli­mate pub­lished the pro­ced­ure for the off­shore wind tender for the sites Hol­landse Kust (zuid) III & IV.   This tender will open on 1 March 2019 for a peri­od of two weeks.
Top rank­ings CMS in Cham­bers Europe 2019
Bill pub­lished for amend­ing the Dutch Off­shore Wind En­ergy Act
On 26 Novem­ber 2018, the Min­is­ter of Eco­nom­ic Af­fairs and Cli­mate presen­ted the long-awaited le­gis­lat­ive pro­pos­al for amend­ing the Off­shore Wind En­ergy Act (OWEA or Wet winden­er­gie op zee) to the House of Rep­res­ent­at­ives.
CMS pub­lishes in­frat­ech re­port 'Con­nec­ted Fu­ture'
Dutch ju­di­ciary com­pre­hens­ively re­jects gov­ern­ment’s cli­mate change...
On 9th Oc­to­ber 2018, The Hag­ue Court of Ap­peal handed down its judg­ment in a long run­ning ap­peal brought by the Dutch gov­ern­ment against a judg­ment (dated 24th June 2015) of The Hag­ue Dis­trict Court. The earli­er judg­ment be­came fam­ous across the world, be­cause.
CMS Ex­pert Guide to off­shore wind in North­ern Europe
The Dutch Cli­mate Agree­ment Pro­pos­al: en­vis­aged CO2 re­duc­tion and...
On 10 Ju­ly 2018, a pro­pos­al for the key ele­ments of the Cli­mate Agree­ment went to the Dutch Min­is­ter of Eco­nom­ic Af­fairs and Cli­mate. This pro­pos­al sets out how the Neth­er­lands plans to meet the re­quire­ments of the Par­is Cli­mate Agree­ment through a 49% re­duc­tion.
CMS rank­ings in The Leg­al 500 EMEA 2018
The Dutch 2030 off­shore wind roadmap
The off­shore wind en­ergy tender scheme that is cur­rently be­ing rolled out by the Dutch gov­ern­ment aims to in­crease off­shore wind ca­pa­city to reach 4. 5 GW by 2023. So far, this scheme has res­ul­ted in three suc­cess­ful tenders, which have achieved sig­ni­fic­ant.