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Energy and Related Sales, Net
 12 Months Ended
Dec. 31, 2017
Text Block [Abstract]  
Energy and Related Sales, Net

3.

ENERGY AND RELATED SALES, NET

We sell excess power generated by the Spring Grove, PA facility. 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:

 

 

Year ended December 31

 

 

In thousands

2017

 

 

 

2016

 

 

2015

 

 

Energy sales

$

3,258

 

 

 

$

3,613

 

 

$

5,315

 

 

Costs to produce

 

(3,986

)

 

 

 

(3,972

)

 

 

(4,428

)

 

Net

 

(728

)

 

 

 

(359

)

 

 

887

 

 

Renewable energy credits

 

5,854

 

 

 

 

6,500

 

 

 

4,777

 

 

Total

$

5,126

 

 

 

$

6,141

 

 

$

5,664