Materials used (EN1)
(Fuels are reported under EN3–4)
Limestone, ammonia and urea are used in flue-gas cleaning equipment. Use of these chemicals results in lower emissions, with considerable positive effects for the environment. Long-term structural changes leading to reliable trends can only be seen over at least a 10-year period. The proper measurement time frame would be an investment cycle that lasts 30–40 years. Across the Group, inventories have been taken of hazardous substances such as asbestos and PCBs, and a plan has been applied to phase out these substances. The result in Poland, for example, indicates that there is no asbestos and no PCB in the heat operation, and a plan to phase out PCB in the electricity distribution operation has been launched. In Germany PCB has been phased out. Materials used for construction in the Nordic power plants can be found in Environmental product declaration (EPD) on www.environdec.com.
ktonnes | Sweden | Finland | Denmark | Germany | Poland | Total 2008 | Total 2007 | Total 2006 |
|---|---|---|---|---|---|---|---|---|
| Lime expressed as CaO | 6.33 | 0.05 | 19.1 | 926 | 7.00 | 958 | 1,010 | 1,050 |
| Ammonia | 0.779 | 0 | 2.26 | 4.34 | 0 | 7.37 | 7.77 | 8.55 |
| Other chemicals for flue gas cleaning | 0.878 | 0 | 23.9 | 4.38 | 0 | 29.1 | 25.6 | 7.86 |
The lower use of lime in 2008 compared with 2007 is due to decreased fossil-based generation in Germany. Other chemicals for flue gas cleaning consist mainly of ammonium hydroxide and the dry scrubber by-product from the Fyn power plant in Denmark, which since 2007 is recycled in flue gas cleaning at the Amager and Nordjylland power plants.
