ORLEN Lietuva invests in solar energy – new PV park to support refinery operations by 2026

05-09-2025  

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ORLEN Lietuva, a subsidiary of ORLEN S.A., is completing the construction of its first renewable energy power plant, directly connected to the Mažeikiai refinery. With an installed capacity of 42.2 MW and a projected annual output of approximately 45 GWh, this investment marks a significant milestone in the company’s shift towards sustainable energy and reduced carbon emissions.

The photovoltaic (PV) park is located within the refinery site and is divided into four main sections. Spanning an area of 600,000 square meters, it will feature approximately 68,000 bifacial solar modules, each with a capacity of 620 Wp. These advanced panels are capable of absorbing sunlight from both sides, boosting efficiency—especially in low-light conditions. Compared to traditional monofacial modules, they can generate up to 30% more electricity.

Most of the modules have already been installed, and the project has entered its final implementation phase. Ongoing work includes land preparation, grid integration, and the installation of electrical infrastructure.

“This is a landmark project for ORLEN Lietuva. For the first time, we will start to generate renewable energy on-site to support the operations of one of the most energy-intensive industrial facilities in the region. In addition to our strategic objective of reducing emissions, this is also about strengthening our energy independence and resilience in a changing energy landscape,” says Zbigniew Paszkowicz, CEO of ORLEN Lietuva.

All electricity generated will be used directly within the Mažeikiai refinery. As one of the largest industrial energy consumers in the Baltic States, the refinery will benefit from a lower environmental footprint and reduced exposure to energy market volatility.

The facility will include advanced energy management systems and will be integrated with a modern medium-voltage switchgear. These systems are designed to ensure efficient energy distribution, operational reliability, and safe performance in an industrial setting.

“This project is a clear example of the ORLEN Group’s sustainability strategy in action. ORLEN Lietuva is playing an active role in Lithuania’s green transition towards a low-emission industry,” adds Z. Paszkowicz.

The total investment in the project amounts to approximately EUR 36 million, and the solar power plant is expected to be fully operational from the beginning of 2026.

The goal of this project is to cut GHG emissions and contribute to the pursuit of climate neutrality. The project is financed by EU Modernisation Fund with 2’500’000.00 EUR allocated under initiative ‘Deployment of Energy-Efficient Technologies in Industries Participating in the EU Emissions Trading System’ of Development Program 2022–2030 measure No 05-001-01-04-02.  Financing agreement was signed on 18 April 2023.​

ORLEN Lietuva has been the largest taxpayer in the country for several years and is a very important part of the Lithuanian economy. Since 2006, for the acquisition and modernization of the refinery in Mažeikiai, ORLEN has invested almost 4.5 billion euros. In addition, ORLEN Lietuva operates the crucial Būtingė terminal in Lithuania, the main port for feedstock supplies, and the Mockava railway terminal, an important transshipment station for the smooth export of products.

ORLEN Group is an integrated, diversified energy group, included i​n the prestigious Fortune Global 500 and Platts TOP250 lists. It was the first group in the region to announce its ambition to achieve climate neutrality targets in 2050. ORLEN Group today operates in more than 10 markets.


ORLEN Lietuva inf.​

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