Ms Margie McCarthy:

There is a combination of the decarbonisation of the grid, the electrification of these technologies and the move to heat pumps. The majority of energy usage in the house is for heat. By installing a heat pump, someone is decarbonising that usage and reducing emissions immediately. We are examining the barriers to grants for heat pumps and trying to broaden them out to more homes, which will have a greater impact on emissions. If the electricity grid meets its own targets, it will get us to 80% renewables by 2030.