More than 100 companies are set to send a letter to the PM voicing fears about the disastrous effects of Britain’s overreliance on gas. More than 100 of the UK’s biggest energy companies will tell Rishi Sunak this week not to back off the green agenda after a report by the Office for Budget Responsibility (OBR) warned of catastrophic effects on the economy of continued overreliance on gas. The energy sector is becoming so alarmed at what it sees as the Sunak government’s mixed messages on switching to more renewable energy that big UK companies are ready to go public with a letter to Downing Street [...]