In the residential sector, the demand is influenced by the desired energy services and the stock of appliances. The popularization of air conditioners, the increasing number of electric vehicles and the potential electrification of heating with individual heat pumps can significantly change the demand profile of residential consumers. Aiming to describe the current status and estimate future demand, we apply a bottom-up model of the hourly electricity demand in Hungary. Two scenarios are developed to describe possible changes in the electricity demand profile. The estimated demand is found to correlate with wind and solar power supply. Using these sources together helps to reduce the variability of electricity supply in comparison to using one or the other alone.