When it comes to energy efficiency audits, Stora Enso already has a long track record. During the period 2000–2002, all European mills went through audits at least once. Stora Enso North America has completed its third annual round of energy efficiency audits at each mill. The energy audits conducted in North America have identified more efficient ways to produce and utilise steam, opportunities to reduce the amounts of fresh water infiltrating processes, and state-of-the-art technologies for reducing the amounts of electricity consumed in large electric motors and for lighting large areas.

One important element of the new approach is that all audits have to lead to an action plan, whose implementation is to be monitored.

In particular, the Fine Paper division has carried out systematic energy efficiency reviews. A pilot project started during December 2004 at Veitsiluoto Mill sets a good example concerning how energy efficiency can be enhanced in an integrated sawmill, pulp and paper production facility. Such integration means that internal energy flows can be efficiently used, although it also increases the complexity of the whole set-up. The pilot project at Veitsiluoto involves process and production workers, as well as energy specialists. This holistic approach also encompasses the role of product mix and interruptions in production.

Stora Enso’s Pulp Competence Centre has meanwhile initiated a new round of energy audits in all 15 pulp mills (including Sunila Oy, an associated company), with the first pilot at Kemijärvi Pulp Mill commencing in autumn 2004.