Off-peak electricity use can reduce strain on the grid.
Tips
usage
Modern administrative buzzword, very productive: 错峰出行 (travel), 错峰上班 (commute), 错峰用电 (electricity), 错峰旅游 (tourism). 错 here means 'misalign / stagger,' not 'wrong.'
memory
Think of 峰 as the 'peak' on a usage graph — 错峰 means 'miss the peak,' i.e. shift your activity to the valleys.