Fiskeby invests in the construction of a so-called anaerobic water purification process directly linked to the company's existing water treatment plant. In this anaerobic purification process biogas is formed. The biogas can then be used as energy in the production of cartonboard, replacing electricity. There are several opportunities to exploit the gas and one of the most environmentally interesting is the operation of the dryers that are used in the production of board.
Since 2010, the Swedish government has assigned investment resources annually to support the introduction of new technologies and solutions that enhance energy production and Swedish Energy Agency has granted Fiskeby SEK 12.6 million ($1.9 million) for the construction of a biogas plant.
Fiskeby has been manufacturing paper and board since 1637.