Patent ID: 7875795

Claim:
An energy generating device on a lighter-than-air vehicle having a gas impervious outer flexible fabric comprising: A. a photovoltaic array located on the outer layer of the gas impervious fabric; B. a thermocouple array connected to generate electrical energy located between the photovoltaic array and the gas impervious fabric, wherein the thermocouple array is printed on one or both sides of an accordion folded, thin film; C. an electrically conductive means connected to said thermocouple array for drawing electrical power away from said thermocouple array; D. an electrical load for drawing electricity from the thermocouple array; E. a thermal conductive layer or thermal spreader between the gas impervious flexible fabric and the thermocouple array; and between the photovoltaic array and the thermocouple array; and F. wherein the energy-generating device makes up a portion of the exterior of a lighter-than-air vehicle.