Britain will struggle to achieve net zero carbon emissions in the next three decades unless consumers are prepared to change their spending behaviour, according to the latest study by electricity system operator National Grid (ESO). In a new report, Future Energy Scenarios 2023, ESO suggests low-carbon boilers or heat pumps, conversion to electric vehicles and periods of demand flexibility where energy consumption is reduced could all be needed for the country to meet the government's climate targets. (NICHOLAS EARL)