The 3U Deployable Solar Array is a compact CubeSat deployable solar panel that lifts the power budget of 3U nanosatellites well beyond what body-mounted cells can provide. The single-deployable variant carries 14 triple-junction photovoltaic cells for a peak power of 16.8 W in LEO, while the double-deployable version stacks 21 cells to reach 25.2 W. Cell efficiency exceeds 30% at beginning of life and stays above 29% at end of life, and a burn-wire release mechanism actuates deployment. X/Y hinge mounting with selectable 90-degree or 135-degree deployment angles gives mission designers control over array orientation and satellite solar power capture.

Engineered for a five-year mission lifetime, the array runs from a single 5 V supply and shields its strings with internal bypass diodes against reverse bias. Up to three integrated photodiodes deliver coarse sun sensing, and an accessible remove-before-flight (RBF) inhibition mechanism keeps ground operations straightforward. Double-deployable wings can be connected in parallel for higher current, multiple arrays scale total power generation, and optional extras — an external magnetorquer connector, a low-power MCU, additional photodiodes, and a temperature sensor – adapt the panel to each spacecraft's ADCS and electrical power system. Every unit ships with a complete user manual and plugs directly into EnduroSat's CubeSat ecosystem.