KYIV, Oct 1 – Fitch Ratings has upgraded Ukraine-based electricity generation company DTEK Renewables B.V.'s Long-Term Foreign-Currency Issuer Default Rating (IDR) to 'B' from 'B-', the outlook is stable, the rating agency said on its website.

"The upgrade reflects our recent Ukraine sovereign rating upgrade to 'B'/Positive, as all of the company's generated electricity is sold to a state entity under approved regulated feed-in-tariff (FiT).