Marius Griskonis

Marius advises on complex single project and large portfolio transactions, enabling the successful development, funding and completion of large-scale projects and transactions.

He has represented developers, sponsors, investors, underwriters, commercial banks, investment banks, export credit agencies and other multilateral agencies in major projects across an array of sectors, including renewable energy (solar, onshore and offshore wind, energy storage), alternative and renewable fuel, conventional power generation, power transmission, petrochemical, infrastructure and telecommunications industries as well as on the energy transition generally.

Marius is ranked Band 1 under Projects: Power & Renewables: Transactional - USA, by Chambers Global. He has been acknowledged as Green Ambassador by The Legal 500 Green Guide: United States 2024. Marius has been recognized in Chambers USA and Chambers Global as having “an impressive breadth of expertise spanning the development, financing, acquisition and sale of renewable energy infrastructure,” where commentators note:

• “Marius is a thought leader and a leading resource for all things power and renewables.”
• “He is extremely responsive, knowledgeable and collaborative, as well as incredibly bright and intelligent.”
• “Marius is very commercially oriented and effective at prioritizing real business issues over less important legal items.”

Work highlights

Power - Solar, Wind & Energy Storage

• Representation of Plenitude, through its U.S. subsidiary Eni New Energy US Inc., in connection with the purchase from EDP Renewables North America LLC of an 80% cash equity interest in a portfolio of three operational solar photovoltaic plants located in Texas and Ohio with an aggregate capacity of 340 MW. 

• Representation of the sponsor in connection with the purchase of 100% of the equity interests in (a) a 75 MWac solar PV power generating facility in South Carolina, and (b) a 100 MWac solar PV power generating facility in Michigan.
• Representation of the developer in connection with the sale to an Asian investor of 100% of the equity interests in a 125 MWac solar PV power generating facility in Texas.
• Representation of the lenders in connection with four separate senior secured construction loans and tax equity bridge loans in a total amount of $464 million for 400 MWdc utility scale solar PV projects in North and South Carolina.
• Representation of the lenders in connection with two $127 million senior secured construction-to-term loan and tax equity bridge loan facilities to two utility-scale solar PV projects located in North and South Carolina.
• Representation of the lenders in connection with the $122 million construction and tax equity financing for a 103.3 MWdc utility-scale solar PV project with a 72 MWh zinc-based battery energy storage system in South Carolina.
• Representation of Avangrid Renewables as equity investor in connection with the US$2.448 billion construction and term loan financing of, and joint venture arrangements for, the 800 MW Vineyard Wind 1 offshore wind project located off the coast of Massachusetts.*
• Representation of Avantus, LLC in connection with the sale of its Big Rock 1, a 200 MW, two-hour (400 MWh) energy storage project to Gore Street Energy Storage Fund.*
• Representation of the sponsor in connection with a tax equity investment in a portfolio of two wind projects consisting of a 162 MW wind project located in Colorado and an 80 MW wind project located in New York.*
• Representation of a U.S. independent solar and battery storage developer in connection with a $320 million secured holdco financing to support the development and construction of battery energy storage projects in the U.S.*
• Representation of an independent power producer in connection with the proposed private sale of a cash equity interest in its U.S. solar PV portfolio consisting of ~20 utility-scale operating and in construction solar projects with an aggregate capacity of ~2.2 GW.*
• Representation of Morgan Stanley Energy Partners in connection with its investment in SolMicroGrid, a developer and operator of solar-enabled microgrid systems for commercial and industrial customers.*
• Representation of a consortium of Korean investors in connection with an acquisition of a 49.9% cash equity interest in a portfolio of four wind projects in the U.S. totalling 852 MWs, located in Texas, Illinois and Nebraska. The equity interest was acquired from Brookfield Renewable and Invenergy LLC in a transaction with an implied aggregate enterprise value for the portfolio of $1.5 billion. This landmark Korean transaction is one of the largest renewable energy acquisitions completed globally by Korean investors.*
• Representation of the borrower in connection with a $700 million holdco portfolio financing to finance solar, wind and battery storage projects and for the issuance of letters of credit in support of electric generation and co-generation power plants across the United States.*
• Representation of Akuo Energy as equity investor in connection with the acquisition of an equity interest in a 336 MW Escalade wind project in Texas developed by Taaleri Energia.*
• Representation of Abu Dhabi Future Energy Company (Masdar), a subsidiary of Mubadala, on its acquisition of a 50% cash equity interest from EDF Renewables, Inc. in a 1.6 GW portfolio of six solar and wind farm projects located in California, Nebraska and Texas, making it one of the biggest acquisitions of renewable assets in 2020 in North America upon its consummation.*
• Representation of Mizuho Bank, Ltd. and The Korea Development Bank as lead arrangers and lenders in connection with a back-leverage financing for the construction and operation of a 60 MW AC solar PV power plant with a 32 MW / 32 MWh battery storage system, located in Guam, U.S. territory.*

Power - Conventional & Transmission

• Representation of Terna SpA in connection with the joint venture arrangements with Boundless Energy and Meridiam relating to the development, construction, financing and ownership of transmission line projects in the U.S.*
• Representation of the export-credit agencies and lenders in connection with the $611 million construction and term financing of a 198 MW Ukudu dual-fuel combined cycle power plant and energy storage system located in Guam, U.S. territory.*
• Representation of Great Basin Transmission South, LLC, a subsidiary of LS Power, in the One Nevada Transmission Line project, which involved the development of a new 235-mile, 500-kilovolt transmission line extending from northern Nevada to an area outside of Las Vegas in southern Nevada.
• Representation of an equity investor in connection with its proposed minority equity investment in a utility scale ~2,100 MW HVDC transmission line in Midwest.*
• Representation of a power purchaser in connection with the procurement of electrical power and possible participation by the power purchaser in the financing of a 1,200 MW transmission line.*
• Representation of Dynegy Inc. in its US$2.8 billion acquisition of ownership interests in certain Midwest generation assets from Duke Energy Corp. The sale, which included 11 Duke natural gas, coal and oil power plants in Ohio, Pennsylvania and Illinois, as well as its retail sales business, was part of a US$6.25 billion acquisition of power plants from Duke Energy Corp and private equity firm Energy Capital Partners.*
• Representation of Calpine Corporation in its US$1.57 billion sale of six power plants located in Oklahoma, Louisiana, Alabama, Florida and South Carolina, comprising 3,498 MW of combined-cycle generation capacity, to NatGen Southeast Power LLC, a subsidiary of LS Power Equity Partners III.*
• Representation of SMBC, MUFG and Mizuho Bank, as mandated lead arrangers and lenders, in the refinancing of a 440 MW rated gas-fired combined cycle power plant, located inside The Dow Chemical Company's Oyster Creek chemical complex in Freeport, Texas.*

Infrastructure & Alternative Energy

• Representation of East West Bank as tax equity investor in connection with its investment in a 7.4 MW fuel cell project located on the U.S. Navy Submarine Base in Groton, CT. The project is indirectly owned by FuelCell Energy Inc.
• Representation of funds managed by UBS Asset Management on behalf of a large U.S. pension plan in connection with the acquisition of a strategic minority equity interest in Tillman Infrastructure, a leading developer and owner of telecommunication tower infrastructure throughout North America.
• Representation of East West Bank as sole arranger and lender in connection with a $37 million portfolio term financing for two biomass electric generation projects in California and Quebec. The projects are owned by indirect subsidiaries of Greenleaf Power, backed by Denham Capital. This transaction marks one of the largest biomass power project financings in recent North American history.
• Representation of a private equity investor in connection with the proposed acquisition of a 49.9% equity interest in a corporation, which manages, operates and maintains a renovated commercial airport under a 30-year public private partnership.*
• Representation of the lenders in connection with the non-recourse project financing of the $1 billion Gulf Coast Ammonia plant, which will produce 1.3 million tons of ammonia per year from nitrogen gas and hydrogen feedstock.*
• Representation of Federal Highway Administration of the U.S. Department of Transportation in connection with a secured TIFIA loan of $108.6 million to the Oklahoma Turnpike Authority to finance Gilcrease Expressway West, a new, four lane highway in the west side of the City of Tulsa, Oklahoma.*

*Matters handled prior to joining Linklaters.

“Marius is a thought leader and a leading resource for all things power and renewables.”
Chambers Global 2023

Band 1: Projects: Power & Renewables: Transactional - USA - Nationwide, Chambers Global, 2020-2024

Band 3: Projects: Renewables & Alternative Energy - USA - Nationwide, Chambers Global, 2020-2024

Band 3: Projects (USA), Chambers Global, 2017-2024

Green Ambassador - The Legal 500 Green Guide: United States 2024

Legal Power List - A Word About Wind, 2022

Recognized Practitioner: Project Finance (USA) - The Legal 500, 2017-2024

Recognized Practitioner: Energy: Renewable/Alternative Power (USA) - The Legal 500, 2018-2024

Rising Star - Project Finance, Law360, 2015

LLM, University of Iowa College of Law, Edmund S. Muskie Fellowship (under authority of Fulbright Hays Act) and University of Vilnius, Diploma of Qualified Lawyer, Faculty of Law.

• "Q&A: M&A in the renewable energy sector,” Financier Worldwide, April 2020
• "Fair winds for offshore wind in the US," Project Finance International, July 2018
• "Financial Covenants: Project Finance Transactions" – together with Practical Law Finance, February 2015