Blue Origin Unveils Solar Power Tower Concept For Lunar Base Operations
The vertically deployed solar array is designed to provide consistent electricity for missions located at the lunar South Pole.
Blue Origin has introduced a new solar energy solution called the Power Tower, designed to support future lunar base operations. The system, which will be transported by the company's Mark 1 lunar lander, features a 20-meter-tall mast that deploys a cascading solar array. This technology aims to overcome the challenges of lunar darkness by capturing oblique sunlight at the Moon's South Pole.
Unlike equatorial regions on the Moon, which experience 14 days of darkness, the South Pole benefits from a unique axial tilt of approximately 1.54 degrees. This allows the Sun to remain visible for much longer periods, skimming the horizon. The Power Tower is engineered to track this low-angle light, providing solar energy between 44% and 100% of the time depending on the season.
The tower's design includes a mast composed of spiraling alloy sections that extend to a height of 20 meters. Once deployed, the solar array unfolds to catch sunlight, offering an output of more than 10 kilowatts. This capacity is intended to power essential lunar infrastructure, including habitats, rovers, and mining equipment used for In-Situ Resource Utilization (ISRU) processes.
Blue Origin envisions the Power Tower as a foundational component for a lunar microgrid. By connecting multiple towers, the system could provide reliable power to support a permanent human presence, particularly for missions exploring craters and extracting water ice. The technology offers an alternative to nuclear power sources, which have traditionally been required to sustain lunar landers through extended periods of darkness.
