The Federation of Small Businesses says 370,000 businesses are at risk
ISS boss Jacob Aarup-Andersen says clients are squeezing staff into fewer floors
Prices will be set at £211 per megawatt-hour of electricity and £75 per MWh for gas
Business secretary Jacob Rees-Mogg is expected to make the announcement on Wednesday
The complexity of the scheme means businesses may have to wait until November