...and the wind could generate electricity for a similar number.
Conversation might be a bit limited though. The need to tell everyone you meet, within 5 minutes of meeting them, that you're a vegan would be removed.
At this point I'm fairly convinced anti-vegans chiming in after 5 minutes of conversation claiming vegans can't keep it to themselves for 5 minutes is more common than vegans actually being unable to not mention it.