I have my portable generator hooked up to my battery bank so if we have no grid power and not enough solar to keep battery bank charged, the generator starts up and begins charging battery bank. I have a sensor for how much power the charger puts into the battery, but no way of tracking it unless I add the generator output sensor to the solar category. I feel it would be beneficial to be able to track additional power sources that charge the battery like wind & water turbines, as well as DC to DC chargers or generators.