| 2011 | 2012 | |||
| CHF thousands | Note | |||
| Total net revenue | 668,045 | 665,303 | ||
| Other operating income | 31,373 | 32,613 | ||
| Total operating revenue | 1 | 699,418 | 697,916 | |
| Energy procurement | -559,586 | -537,515 | ||
| Material and third-party services | -8,040 | -7,098 | ||
| Personnel expenses | -45,264 | -51,808 | ||
| Concession fees | -9,141 | -8,287 | ||
| Depreciation/amortisation and impairment | 2 | -30,914 | -26,181 | |
| Other operating expenses | -37,127 | -36,380 | ||
| Operating expenses | -690,072 | -667,269 | ||
| Operating income before interest and taxes | 9,346 | 30,647 | ||
| Financial income | 16,621 | 15,962 | ||
| Financial expense | -32,755 | -24,462 | ||
| Non-operating income | 143 | 169 | ||
| Income before taxes | -6,645 | 22,316 | ||
| Gains on the sale of assets | 1,553 | 490 | ||
| Extraordinary income | 27,283 | - | ||
| Extraordinary expenses | -5,679 | -57 | ||
| Profit before taxes | 16,512 | 22,749 | ||
| Taxes | -1,367 | -1,642 | ||
| Net income for the year | 15,145 | 21,107 |