Associated European Energy Consultants

“Delivering European Energy Solutions”

Associated European Energy Consultants

“Delivering European Energy Solutions”

Member Infomations


Kyiv, London

Hillmont Partners

36-D Yevhena Konovaltsia Street, 5th floor
01133 Kyiv
+38 044 277 2447
Contact person for AEEC matters:

Tetiana Mylenka, LL.M

Tetiana Mylenka, LL.M,
attorney-at-law, Counsel and Head of Energy practice

The energy practice at Hillmont Partners is led by Tetiana Mylenka, LL.M (King’s College London), who has over fifteen years of professional experience. She was head of the legal department at the state-owned company JSC Main Gas Pipelines of Ukraine in addition to serving as an expert at the Energy Community Secretariat and previously worked as a senior lawyer at renowned international law and consultancy firms (Deloitte, CMS). Tetiana was intensely engaged in gas TSO unbundling during 2018-2020 in her capacity of an external legal advisor, head of legal at JSC Main Gas Pipelines of Ukraine and as an expert of the Energy Community Secretariat.

Tetiana is a member of the working group on improvement of legislative regulation in energy sector, external advisor to supervisory and executive board members of strategic enterprises, aide-consultant of a Member of the Parliament of Ukraine, co-author of several draft laws in electricity and gas sectors, and an author of a number of articles and publications. She is a frequent speaker at conferences and expert forums and is a lecturer at the Legal High School educational platform.

Tetiana’s recent projects work includes consulting of foreign investors in the renewable energy sector of Ukraine regarding legal remedies for protecting their rights, including through investment and commercial arbitration, advising the holding company of the gas TSO on corporate governance matters, certification requirements under the Third Energy Package, representing a large foreign investor in negotiations between the Government of Ukraine and investors in the renewable energy sector of Ukraine (regarding feed-in-tariff restructuring), advisory on corporate PPAs, and many other ventures.

Tetiana is a member of the American Bar Association (Environment, Energy, and Resources Section), Ukrainian Bar Association, American Chamber of Commerce, European Business Association, Energy Club, and Women’s Energy Club of Ukraine.

Hillmont Partners

Hillmont Partners is a leading Ukrainian law firm and one of the fastest-growing players in the Ukrainian legal services market with leading professionals offering the expertise and insight needed to help clients navigate the complex legal and regulatory landscape. Hillmont Partners was founded by British and Ukrainian partners with a view to providing high quality legal services to investors and businesses operating or looking to operate in Ukraine.

In the natural resources and energy sector, the firm’s legal services offering includes advising on the most high-profile, complex and innovative oil, gas, power and renewable energy infrastructure projects in Ukraine. Our lawyers have an impressive track record of advising big corporations and governmental institutions on corporate, finance, environmental compliance, tax and other regulatory issues, site/land due diligence and acquisition or lease, deal negotiations and structuring, post-closing integration.

The firm’s lawyers supported the structuring and negotiating of the sales and acquisitions in the energy sector, as well as assisting with the establishment of strategic partnerships and joint ventures, protecting investments and assets of energy companies in Ukrainian and international courts.

The firm’s capabilities in the energy infrastructure include guiding local businesses and international investors through the complicated local regulatory issues relating to investments and site/assets transactions, including obtaining permits, approvals and licenses with the state authorities throughout Ukraine. Hillmont has an impressive track record of advising developers, funds, investors, lenders and project sponsors on legal aspects of energy infrastructure facilities planning and development in Ukraine.

Our services include:
• Providing solutions and regulatory support for acquisition and alienation of energy assets (deal structuring, due diligence, negotiations, etc.);
• Legal advisory on a wide range of matters related to development, project procurement (site acquisition; licensing and permitting; transmission and interconnection agreements; supply agreements; procurement and construction; equipment supply; operation and maintenance);
• Drafting and negotiating of power purchase agreements, fuel supply contracts, construction contracts, maintenance and operation contracts, etc.;
• Regulatory advice on upstream and downstream oil and gas, transmission and distribution, retail electricity and natural gas supply, energy market reform;
• Advisory on bilateral investment treaties and dispute resolution in the energy sector;
• Advisory on national policy.

Kyiv, London
Accredited professionals
Dedicated departments in the field of energy
Oil and gas, electricity, renewable energy
Accredited professionals active in the field of energy
Other departments
Corporate and M&A, Competition / Antitrust, Taxation, Commercial Litigation, White Collar Crime, Private Clients, Strategic Communication
State and private energy, oil and gas companies, leading financial and multilateral institutions, commercial and investment banks, local and foreign investors, SMEs
Clients benefit from our ability to offer a full range of legal services across the energy industry. We help them navigate multiple legal challenges and regulatory uncertainty, support in the course of the investigations.
Selection of references
Acting for three of the country’s major state energy companies: Gas of Ukraine (subsidiary of Naftogaz of Ukraine), JSC Main Gas Pipelines of Ukraine and JSC NPC Ukrenergo (electricity TSO). Representing Nuclear Energy Systems of Ukraine as a license holder for uranium exploration in Ukraine in a number of court proceedings. Advising the Nasdaq-listed Trident Acquisitions Corp., which raised USD 150 million of investments into the Ukrainian energy market. Providing land ownership advice to a Canadian investor with respect to its USD 50 million investment into renewable energy facilities in Ukraine, as well as urgent advising on a challenging issue of securing connection of the company’s facilities to the grid. Providing a strategic legal advice to a fast-growing solar energy company based in Norway with a focus on emerging markets, on exploring the opportunities of the first and so far the only in Ukraine experience of handling corporate PPA feasibility study outlining investment options applicable under existing regulatory framework; also representing the company’s interests in negotiations with the Government of Ukraine on resolving the FiT crisis and finding consensus on FiT issues and further development of “green” actions in Ukraine.

Publications of Hillmont Partners