The device you are using to read this article is based on a centralised, monolithic architecture – a processor core steering a number of other components into executing tasks. Most of our technological systems work this way, because it’s us humans who lead, telling them what to do – we are the intelligence.
Time is money – especially in space. As a host of new lunar expeditions queue up for an eventful year, once they reach our natural satellite, rovers and other spacecraft will only have a limited amount of time to operate before running out of fuel – a.k.a sunlight. Until we can viably leverage in-situ resources like ice and regolith, solar energy will still be the main power source on the Moon (and by far the easiest to harvest).