Simon Fraser University is hosting a free public lecture at 7 p.m. Oct. 24 about how to make older homes more environmentally friendly. Lorraine Gauthier will give a presentation of the Now House project, a retrofit of a 60-year-old house in Toronto that now produces as much energy as it consumes, resulting in a net-zero energy bill. The award-winning designer will lead a panel discussion on how these techniques can be applied to most homes. Admission to The Now House: Retrofitting for Zero Energy is free but advance reservations are required. Visit sfu.ca/city for more information.