2025-09-15
A rainy and cloudy summer did not stop the growth of solar power plants in Lithuania
As the number of solar power plants increased, so did the energy they generated — both when evaluating the results of individual solar parks across different regions of the country and in the overall total.
It was not only rainfall that was abundant — the number of prosumers continued to grow.
On the one hand, meteorologists point out that this summer was cloudy and lacking in sunny hours. The duration of sunshine in June, July, and August reached 688 hours — a sixth less than the long-term average. Moreover, it was very rainy: for example, in July this year, 168% of the average monthly rainfall fell compared to historical norms.
On the other hand, neither rain nor cooler weather slowed the momentum of green energy projects in Lithuania — from households to companies.
July was not only rainy but also particularly rich in new prosumers. According to ESO data, 9.7 thousand new prosumers connected in a single month. Six thousand consumers invested in renewable energy plants in solar parks, with business enterprises being especially active. In total, the number of prosumers in Lithuania reached 150,000 this July — each of them contributing to the country’s energy independence.
Not everyone generated less — Kėdainiai experienced a breakthrough
Naturally, smartly managed solar parks are making an increasingly important contribution to national electricity generation. Data from Inion Software, a technology company that helps businesses manage solar plants, wind parks, and smart batteries, shows that over the summer, production processes were active in various Lithuanian cities — from the coastal region to the capital. The company compared how the same solar plants produced electricity this summer versus last year’s summer.
“For example, in Gargždai, during June and July this year, only slightly (12%) less energy was generated compared to the same months in 2024. A similar decline was observed in Vilnius and Utena. Solar plants in Kaunas and Elektrėnai also produced less energy.
However, Kėdainiai experienced a breakthrough — the power plant in central Lithuania generated 12% more energy than during the same summer months last year,” says Robertas Janickas, CTO of Inion Software.
More and more green electricity
So, although this summer’s weather was less sunny and cooler than the long-term average, renewable electricity generation remained high.
For example, in June alone, solar and wind power plants covered 77% of electricity consumption needs, according to the Lithuanian Energy Agency. In July, this figure dropped to 70%, but in August it rose again — to 74%. In other words, about three-quarters of electricity came from green sources.
According to R. Janickas, solar power generation reached 0.73 TWh over three months, with more produced from June 1 to August 31 than during the same period last year. Even rainy July this year delivered 0.25 TWh, compared to 0.21 TWh last year.
To put this into perspective, 0.25 TWh is enough to cover the monthly electricity needs of about 0.8–1 million Lithuanian households.
“It is worth noting that this ‘energetic’ summer contributed to Lithuania producing more electricity in eight months than in the whole of 2023. This shows that consumption and the market are recovering, and the path of green energy is not overshadowed by any clouds or washed away by any rains — even though businesses in Palanga were once again complaining about them this year,” says Inion Software’s CTO.
Text prepared by Inion Software
