UK households are rapidly increasing their use of fossil fuels due to energy price spikes driven by the US and Israel's war with Iran. According to Octopus Energy, March was the company's biggest-ever month for enquiries and sales. Solar sales jumped 54% month-over-month, with more homeowners opting for larger systems. Heat pump sales also increased by 51% monthly over the same period. The company has launched a fast-tracking installation program for homes currently using oil boilers, which can be completed in as little as 10 days from the quote to install. Online interest in solar and heat pumps has also increased, with searches for heat pumps increasing by 30% as more people learn about the technology.