The Toppila power plant of Oulun Energia

A container-built granulation facility by Rakeistus Oy operates on the site of the Oulun Energia power plant in Toppila, Oulu. It has been operating since 2012. It is the first granulation facility of Rakeistus Oy. It has been modernized and updated regularly, and it currently produces 7–9.5 thousand tons of ash fertilizer per year. Rakeistus Oy receives the ash from Oulun Energia and turns it into a fertilizer as a service production for Oulun Energia.