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Borislava Piperkova
Partner

Borislava Piperkova

Languages
  • Bulgarian
  • English

Borislava is a Partner at CMS Sofia, Head of Renewables, and is a member of the Energy, Projects and Construction team. She is a multi-disciplined professional with experience in many other departments including Banking and International Finance, Corporate, Commercial and Real Estate.

Borislava has considerable experience in complex due diligence reviews for renewable energy clients and advises on successful financing for large photovoltaic power plants in Bulgaria. She is a key expert in terms of wind and solar renewable energy project development in Bulgaria, from the due diligence stage through project acquisition up to project financing and commencing operation. 

Borislava has assisted Asian investors, European clients, including French and Luxembourg investment funds, as well as clients from the USA. She has considerable experience not only in project development, but also in project financing and refinancing, where she advises developers and financial institutions on financings mainly in agreement with the rules of the international Loan Market Association. Those financing projects cover loan agreements, security documents, mortgage deeds and all relevant registrations and procedures.

Awards & Recognitions
01
  • Quote
    "Professional attitude and strong commitment in closing this transaction. Without your support it would not have been possible to complete this deal."
    Client Feedback
  • Quote
    "I would like to take this opportunity to thank you and the whole team who did an outstanding job on the way towards achievement of this goal. It is always a pleasure to work with all of you."
    Client Feedback

Relevant experience

  • ENKA İnşaat ve Sanayi A.Ş. (ENKA) on regulatory matters in the energy sector, due diligence of greenfield energy projects, negotiations with local developers and project acquisitions.
  • YGY Industries on the sale of the 229-megawatt St. George greenfield solar plant in Bulgaria's Silistra municipality to Rezolv Energy.
  • RGREEN INVEST, a leading European investment fund, on the preparation of legal due diligence on two large greenfield wind projects.
  • RES Technology and ASM-BG Investments on re-financing, including the borrower’s full LDDR, negotiations with international banks UniCredit and OTP, and registration of the security documents.
  • Nikan Agro, a leading international investor, on the acquisition of a 50 MW greenfield photovoltaic project.
  • Aksa Enerji on its market entry in Bulgaria and investment in wind power projects. 
  • Vestas Development, one of the largest global providers of sustainable energy solutions, on a large greenfield wind portfolio, including negotiations with local developers and acquisitions of local projects.
  • First May JSCo. on the preparation of a Vendor’s LDDR, development and potential sale/JV regarding one of the largest PV projects in Bulgaria, Lambrinovo 200 MWp.
  • BayWa r.e. Solar Projects GmbH on its entry in Bulgaria and on all legal aspects of its planned acquisitions in Bulgaria.
  • Argos Energy Ltd. on the first renewable energy project in Bulgaria developed on the free market. 

Memberships & Roles

  • Sofia Bar Association

Awards & Rankings

  • Notable practitioner for Project Development, IFLR1000 2023

Education

  • 2014 - LLM, Sofia University “St. Kliment Ohridski”

Insights by Borislava

European Parliament calls for a ‘buy-European’ approach to EU defence

24 Mar 2026 3 min read

CMS advises Chirpan Solar Plant Ltd on licensing for 120 MW AC Chirpan Solar PV Project

24 Feb 2026 1 min read

CMS advises on 317 MWh Helios Storage BESS project sale in Bulgaria

24 Feb 2026 1 min read

Bulgaria to adopt law denouncing Energy Charter Treaty

19 Feb 2026 3 min read
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