The way homeowners generate and use electricity is changing, thanks to a new grant scheme for rooftop solar photovoltaic systems recently announced by Denis Naughten, Minister for Communications, Climate Action and Environment. The grant scheme will be administered by the Sustainable Energy Authority of Ireland, which will be available this Tuesday at the Energy in Agriculture event to answer questions.The scheme will provide a contribution of up to €3,800 towards total installation costs. To maximise self-consumption, the scheme requires that any installation greater than 2kWp must install a battery to store excess energy. Where installations are 2kWp or less in size, it is recommended to install a hot water diverter and excess electricity will be used to heat water.