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Energy and Related Sales, Net | 12 Months Ended
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Dec. 31, 2012
Energy and Related Sales, Net [Abstract] |
ENERGY AND RELATED SALES, NET |
4. | ENERGY AND RELATED SALES, NET
We sell excess power generated by the Spring Grove, PA facility. Prior to the March 31, 2010 expiration of a long-term contract, all sales were at a fixed price. Subsequently, we sell excess power at prevailing market rates. We also sell renewable energy credits generated by the Spring Grove, PA and Chillicothe, OH facilities representing sales of certified credits earned related to burning renewable sources of energy such as black liquor and wood waste. The following table summarizes this activity for each of the past three years:
In thousands |  |  | 2012 |  |  |  | 2011 |  |  |  | 2010 |
Energy sales |  | $ | 5,284 |  |  | $ | 10,992 |  |  | $ | 14,296 |
Costs to produce |  |  | (4,187 | ) |  |  | (9,319 | ) |  |  | (10,403 | )
Net energy sales |  |  | 1,097 |  |  |  | 1,673 |  |  |  | 3,893 |
Renewable energy credits |  |  | 5,903 |  |  |  | 7,671 |  |  |  | 6,760 |
Total energy and related sales, net |  | $ | 7,000 |  |  | $ | 9,344 |  |  | $ | 10,653 |

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