Scotland’s net-zero targets mean that the ways in which we consume electricity are changing. Time-variant tariffs, which encourage consumers to use electricity at times of the day when grid demand is lower, or when generation from renewable sources of energy is higher, have been entering the market and these are predicted to become one of the main energy supply models in the future. Alongside this opportunity of greening the electricity grid come risks that could create new inequalities and vulnerabilities for consumers. This research investigated the implications that dynamic time of use (ToU) tariffs could have regarding vulnerable consumers.