The objectives of this effort will be to investigate the use of electroluminescent (El) panels and photovoltaic cells to obtain electro-optical low voltage power supplies that are stable, reliable sources. Stacking of our double sided El panels with interleaved photovoltaic cells will provide variable stable voltage levels for military field maintainance applications. In addition optimization, of El panel-photovoltaic cell parameters will be investigated to obtain the most efficient system design.