Information relating to the specifications of equipment can be found by clicking Settings > Equipment > (Batteries, Inverters, or Modules). Each equipment table list includes a column showing equipment specs.
Clicking modules will show Dimensions (in millimeters), Capacity (in watts), Efficiency, and yearly degradation.
Clicking on Inverters will allow you to see the efficiency, AC Output, and whether the inverter is a microinverter.
Clicking on Batteries will show battery dimensions (in millimeters), Capacity (in kWh), Product warranty (in years), and peak output power (in kW).