About us - Eternia Solar
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About us

We build the future of renewable energy

Eternia Solar - renewable energy construction company that covers the entire cycle of solar business from engineering to operations and maintenance. We are trusted by our clients from manufacturing, logistics, retail, and other sectors.

Eternia Solar

Experts in solar technology, engineering, and support

Eternia Solar is one of the most dynamic solar engineering, procurement and construction providers in Europe. Working closely with the needs of our clients, we can customize strategies that bring long-term effectiveness for any energy demand. Our team of skilled experts caters to a wide range of solar needs: from planning energy effectiveness and implementing solar energy projects to ensuring efficient operation for years to come.


Up until 2020, Eternia Solar was known as "I+D Energias Lietuva". Company’s journey first started when "I+D Energias" was established in Spain in 2007. In 2017, the company and a Lithuanian investment management company Sun Investment Group established a joint venture, "I+D Energias Lietuva" and in 2020, the company changed its name to Eternia Solar.

Since its establishment, the company has become one of the most active market players in the Baltics and currently boasts a large portfolio that includes the largest ground-mounted solar power plant in Lithuania and one of the largest rooftop power plants in the Baltics.

The company belongs to a group whose developed projects rank as the 50th largest PV portfolio in Europe.

Facts and numbers

10 years

international experience




team of experts


We believe

We believe

Climate change and air pollution are two of the biggest challenges threatening the world today. That is why we are determined to make a real difference through the widespread adoption of solar power.

Our projects

Eternia Solar has successfully adopted and certificated the integrated quality (ISO 9001), environmental (ISO 14001), and occupation health and safety (ISO 45001) management systems. The company is constantly improving management processes, operates in a transparent way, and emphasizes the importance of the environmental protection, and improving employees‘ knowledge about health and safety.


More than 160 solar experts at the company group.

We take great pride in our team. Here you will find only the most dedicated and professional talents ready to help with comprehensive solar energy solutions.

Andrius Džiaugys



Gediminas Juknius

Sales manager

Agnė Guobužaitė

Marketing project manager

Aurimas Budrys

Project manager – engineer

Darius Vaicenavičius

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2020 was a year like no other for Sun Investment Group companies: our team pushed boundaries and achieved extraordinary milestones.

Thank you for building a more sustainable future with us!