The problem to be solved by the proposed program is the limited performance of photovoltaic receivers in current concentrator modules, due to first-surface reflection losses from the transparent cell encapsulant, shading losses due to gridlines on the illuminated surface of the cell, and… More

Entech is pleased to propose to nasa the development of an innovative crossed lens gallium arsenide photovoltaic concentrator, capable of providing an operational efficiencyof 22% in the space environment. the proposed system will utilize three state-of-the-art developments: (i) a cylindrical… More

Entech is pleased to propose to the strategic defense initiative organization the design development of an innovative dome fresnel lens/gallium arsenide photovoltaic concentrator array, capable of achieving an amo operational array efficiency of 20.4% in the space environment. the proposed system… More

Over the past 6 years, entech has developed a unique prismatic cover for photovoltaic cells. the new cast silicone cover optically eliminates the usual shadowing loss caused by metal gridlines on the illuminated cell surface, thereby boosting cell performance to previously unattainable levels. the… More

Since 1986, ENTECH, NASA, and SDIO have pioneered the development of refractive space photovoltaic concentrator systems. We have developed functionally system hardware, including lenses, prismatic cell covers, single- and tandem-junction cells, and small arrays. This hardware has verified… More

The proposed innovation is a wireless laser power transmission system employing a dual-use photovoltaic concentrator at the receiving end. Specifically, the laser receiver/converter employs thin Fresnel lenses to focus continuous or pulsed laser light onto small photovoltaic cells, thereby reducing… More

The proposed innovation is a wireless laser power transmission system employing a dual-use photovoltaic concentrator at the receiving end. Specifically, the laser receiver/converter employs thin stretched-membrane Fresnel lenses to focus continuous or pulsed laser light onto small photovoltaic… More

Over the past six years, ENTECH, Auburn, NASA, and other organizations have developed a new space photovoltaic array called the Stretched Lens Array (SLA), which offers unprecedented performance (e.g., >80 kW/cu.m. stowed power, >300 W/sq.m. areal power, and >300 W/kg specific power in the very near… More

The DOD conducts strategic space missions in order to protect national security. Some of these missions fly in high-radiation orbits, where the radiation damage to the array limits lifetime, therefore compromising mission capability. In addition, rogue nations or terrorists might someday detonate… More

Over the past six years, ENTECH, Auburn, NASA, and other organizations have developed a new space photovoltaic array called the Stretched Lens Array (SLA), which offers unprecedented performance (e.g., >80 kW/cu.m. stowed power, >300 W/sq.m. areal power, and >300 W/kg specific power in the very near… More

ENTECH, Auburn, NASA, and others have recently developed a new space photovoltaic array called the Stretched Lens Array (SLA), offering unprecedented performance (>80 kW/cu.m. stowed power, >300 W/sq.m. areal power, and >300 W/kg specific power) and cost-effectiveness (>75% savings in $/W compared… More