Note 23 Inventories
| 2008 | 2007 | |
| Biomass | 48 | 44 |
| Fossil fuels | 246 | 243 |
| Materials and spare parts | 28 | 23 |
| Total | 322 | 310 |
The amount of inventories recognised as an expense in 2008 amount to SEK 650 million (1,794). No impairment losses of inventories or reversal of impairment losses were recognised during the year.