The US army should create a new MOS for combat solar panel installer.  Once a base has been established in a sunny area like a desert, the CSPI will put up the panels, inverters, batteries etc so that the base has a supplemental power source.  Typically the bases are run by gasoline. Those generators often overheat in the daytime when solar panels would be perfect to power the immense air conditioning that's required in the desert.  The CSPI soldiers would get valuable civilian training.  It should be a school for combat arms soldiers as well for the civilian reason but also so they're able to set up an emergency panel that could power a distress beacon.