Tesla Motors Club
I’ve signed up for virtual power plant, and today was the first event. The battery was charged to 100%, and kept at that level without depleting until it started to discharge. The event took around 3 hours, and the two Powerwalls discharged to 20% while providing 17.5kwh based on app. The Powerwall portal through WiFi had a battery level of 25% instead of 20%.
Does someone know how much energy is expected to be provided? My numbers are not adding up to 17.5kwh. Each battery has useable storage of 13.5kwh, so total of 27kwh. 80% is 21.6kwh which is far from 17.5kwh.
I am aware that the Powerwall round trip efficiency is 92.5%. So single trip is 96.25%?
Also when I called Tesla energy support, I was told that the Powerwall keeps 1kwh, and it is not included in the reported battery level. The purpose is to avoid draining the battery entirely which would need tech intervention to bring it back to life.
Has anyone done any tests and could share some data points?
Does someone know how much energy is expected to be provided? My numbers are not adding up to 17.5kwh. Each battery has useable storage of 13.5kwh, so total of 27kwh. 80% is 21.6kwh which is far from 17.5kwh.
I am aware that the Powerwall round trip efficiency is 92.5%. So single trip is 96.25%?
Also when I called Tesla energy support, I was told that the Powerwall keeps 1kwh, and it is not included in the reported battery level. The purpose is to avoid draining the battery entirely which would need tech intervention to bring it back to life.
Has anyone done any tests and could share some data points?