| 31.12.2014 | 31.12.2013 | |
|---|---|---|
| Amortization and depreciation | (728 408) | (761 759) |
| Costs of employee benefits | (948 872) | (1 036 215) |
| salaries and wages | (718 901) | (782 860) |
| social security and other benefits | (229 971) | (253 355) |
| Consumption of materials, raw materials, value of goods and materials sold |
(1 821 196) | (1 822 994) |
| consumption of materials and energy | (1 564 522) | (1 728 067) |
| cost of goods and materials sold | (256 674) | (94 927) |
| Cost of energy purchased for resale | (3 835 730) | (3 303 371) |
| External services | (1 046 916) | (940 961) |
| transmission services | (710 577) | (599 170) |
| other external services | (336 339) | (341 791) |
| Taxes and charges | (268 934) | (244 240) |
| Total costs of products, goods and materials sold, selling, marketing, general and administrative expenses | (8 650 056) | (8 109 540) |
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