At the turn of 2007/2008 a contract was signed with Fortum Värme AB for delivery of a complete flue gas condensation plant to KVV6 in Värtaverket. There are two coal paste boilers of 140 MW each with relatively low moisture content so the project also includes a heat pump. Condensation plus heat pump delivers about 40 MW of heat.

The delivery consists of parallel condensers in two stages, fans, new chimney pipe and condensate treatment with MF, UF, RO. In addition to this building and all equipment required for a complete installation.