Today's commute in was quite idea. Lots of EOC. I did use the fan on low (3.5A draw) for about 2/3rds of the trip for some heat. I got to work with about 4Ah used. So my really rough guess is I regenerated about .5 Ah of that. This is really rough guestimation though.
The trip home has more opportunities to use regen because of the placement of stop lights and signs at bottoms of hills. I sure hope I can get more than .5 Ah out of regen hahaha. But, I will do my best to verify it.