I received some more information about this from a reliable source:
This journal hasn’t been included in the 2013 JCR data due to anomalous citation patterns found in the 2013 citation data. These patterns result in a significant distortion of the Journal Impact Factor and rank that does not accurately reflect the journal’s citation performance in the literature. The Journal Impact Factor provides an important and objective measure of a journal’s contribution to scholarly communication. In the interest of fairness and accuracy for all journals, the distortion of the Journal Impact Factor by an excessive concentration of citations gives rise to the need for suppression.
The journal “International Journal of Photoenergy” has be suppressed for “Citation Stacking,” where there is an anomalous exchange of citations between two or more journals. You can read more about Journal Suppression here : http://wokinfo.com/media/pdf/jcr-suppression.pdf
