![](https://images-assets.nasa.gov/image/EC00-0283-9/EC00-0283-9~large.jpg?w=1920&h=1536&fit=clip&crop=faces%2Cfocalpoint)
EC00-0283-9
A technician at AeroVironment's Design Development Center in Simi Valley, California, checks a panel of silicon solar cells for conductivity and voltage. The bi-facial cells, fabricated by SunPower, Inc., of Sunnyvale, California, are among 64,000 solar cells which have been installed on the Helios Prototype solar-powered aircraft to provide power to its 14 electric motors and operating systems.
Image Credit: NASA/Tom Tschida
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https://www.nasa.gov/image-detail/amf-ec00-0283-9/
TakenSeptember 18, 2000
ProducerAFRC
Image CreditNASA/Tom Tschida
Size1920x1536px
PIA NumberEC00-0283-9