A 174 MW solar power plant has reached commercial operations in Latvia.

Lithuanian green energy company Ignitis Renewables developed the Tume solar farm in the Tukums municipality.

The project is one of the largest in the Baltic states, according to a statement published by Ignitis Renewables. It spans 302 hectares, features over 282,000 solar panels and is expected to generate enough electricity to meet the demand of 85,000 households annually.

Ignitis Renewables adds it is its first solar project to use solar trackers that will follow the sun’s movement throughout the day, as well as its first to be primarily maintained by in-house specialists.

The company is currently developing a 107 MW/215 MWh Tume battery energy storage system (BESS). With construction underway, the BESS will be integrated with the solar farm upon completion.

Ignitis Renewables CEO Frank Oomen said the project strengthens local renewable electricity generation in Latvia, enhances regional energy security and supports the Baltic energy transition.

The Tume solar farm is Ignitis Renewables’ third in Latvia. It switched on the 94 MW Vārme PV project in July 2025.

Latvia’s cumulative solar capacity surpassed 1.5 GW in August. The country has had a strong year for new solar deployment, installing more solar over the first half of the year than it has across any calendar year prior.

Solar was Latvia’s largest source of electricity generation in May, June and July this year, according to figures published by transmission system operator Augstsprieguma tīkls. Research by Germany’s Fraunhofer Institute for Solar Energy Systems ISE found the country set an EU record for the share of solar within its domestic electricity generation in June.

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