The ability to monitor multiple power sources in our building, including those from the main grid as well as solar panels and batteries through inverters. This allows us to have a much better view of what we are generating and where it comes from within our own system compared to other tools that only focus on one source. We can also see if there is any difference between various types of battery packs. It would be nice to have more granularity about how the data relates to actual energy production or consumption for each source but this isn't really a problem at this time since I haven't found anything to dislike yet! Having good visibility into your electrical needs will help you make informed decisions regarding new equipment purchases.