Dr. Ward calls the device a photo-voltaic capacitor. Photovoltaic is the principle behind solar cells where light, usually sunlight, creates an electric potential. Capacitors, on the other hand, store electric charge. The two don't mix, unless GD has developed an integrated photo-voltaic cell and capacitor, in which case the cell portion would be generating far more current than ones of that size in reality, given the size of the capacitor.
The US Army Col. (O-6) on the interview panel is wearing a General's jacket (wide wrist stripes) and no branch insignia. she is wearing Aviator's wings so she should therefore be wearing Aviation Branch insignia.