It seems unlikely for a company on the scale of Yandex to make a deal with a small company unless they had literally no other choice. And like nicce pointed out

It seems unlikely for a company on the scale of Yandex to make a deal with a small company unless they had literally no other choice. And like nicce pointed out, they seemed to have a five-year contract with Ilmatar Energy Oy, which in 2020 did 30.3 million euros in revenue and 1.9 million euros in profit, and seem to still be solidly in the business of selling wind power.