Night-time in solar PV systems averages 16 hours, requiring significant storage or alternative generation to meet demand. Pumped hydro and batteries are key, with pumped hydro offering long-duration, ...

Roula Khalaf, Editor of the FT, selects her favourite stories in this weekly newsletter. I’ve never much enjoyed night-time work. Neither as a bleary-eyed teenager clearing plates at corporate events, ...

Some of us love to be tucked up in bed by a particular time every night, ensuring a certain number of hours of sleep. Others go to bed when they start to feel tired, or when they’ve finally finished ...