Hi @jroberts,
If you update your core libraries with LB Versioner you will get a new component, HB Annual Statistics.
This component combines a few other components (Average, Peak, Cumulative), but it also includes the minimum value. The default behaviour is similar to the other components, but if you set per_timestep_ to True it will return data collections – one data collection for each sensor grid. You can deconstruct these to post-process the values further, e.g., counting the number of hours where there average illuminance in a room is above a certain threshold.
