This rate option is designed for greenhouse operators who use part of the electricity supplied by Hydro-Québec for photosynthetic lighting. More specifically, it targets customers who are able to adjust their production and to manage their electricity consumption in such a way as to reap the benefits of the additional electricity option while working around the associated constraints.

This option applies to a Rate DP, M or G-9 contract under which electricity is used for photosynthetic lighting and whose maximum power demand has been at least 400 kilowatts during a consumption period included in the 12 consecutive monthly periods preceding the date of the sign-up request.