These green peppers survived better outdoors than the ones in my greenhouse. These were from some free seed given in the "Kitchen Garden Magazine" , a variety called "Yolo Wonder". Like my chillis they have not ripened yet.
Apparently you can keep a chilli plant in a greenhouse over winter and they will survive - I think they might be perennial or biennial... or something like that. My beloved Bob Flowerdew was talking about them. I will have to go and find out - unless, of course you know different?