Just days after launching a bid for one Polish utility, Spanish energy heavyweight Endesa has revealed plans to pursue a majority stake in Poland's biggest power generator Elektrowni Kozienice.

Iberian utility Endesa is to bid in the region of E600 million to acquire a majority stake in Elektrowni Kozienice, which has a total capacity of 2,845 megawatts, AFX News said quoting an Endesa spokesperson.

The move comes just days after the Spanish company tabled an E400 million bid for the Polish power station operator Zespol Electrowni Dolna Odra, which has a capacity of 1,960 megawatts.

Kozienice produces 12% of Poland’s power from ten coal-fired generating units, while Dolna Odra accounts for 6% of the country’s installed capacity.

Endesa already faces competition from five other power companies for Dolna Orda, including Vattenfall, CEZ and fellow Spanish outfit Iberdrola. However, rivals for its interest in Kozienice are yet to emerge.