What’s the most practical way to power future Mars colonies?
These same kinds of trade-offs have already arisen with energy technologies used by Mars rovers. Engineers need to find the right balance between transportation weight, storage needs, and an energy system that can handle variations in the availability of sunlight.
It’s also important to study solar radiance and how dust and ice affect how much light reaches the planet’s surface, and where that light can best be collected, says Daniel Vázquez Pombo, an energy engineer at the Technical University of Denmark who wrote alast year about a possible hybrid power system for a permanent Mars colony that includes PV arrays and storage. Maintenance for energy systems can be risky for those conducting repairs, another argument for having options.
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