The Cheapest Time to Run a Washing Machine in the UK (2026 Cost Guide)

⚡ In a Rush? Key Takeaways

  • Economy 7 offers 7 hours at half the standard rate, typically midnight to 7am.
  • Agile tariffs reset every 30 minutes based on wholesale rates.
  • Off-peak washing can save £35-75 annually for three weekly washes.
  • ✅ Delay your washes to 10pm-8am on time-of-use tariffs for maximum savings.

Understanding Economy 7 off-peak windows

  • Economy 7 meters offer seven consecutive hours at roughly half the standard rate.
  • Exact windows vary by region and supplier, typically midnight to 7am.
  • You must verify your specific window by checking your latest bill or contacting your supplier directly.
Option Key stat Best for
Economy 7 7 hours at half the standard rate Consistent weekday routines
Agile tariffs Half-hourly pricing based on wholesale rates Those willing to monitor rates

📊 Efficiency Verdict
Delaying washes to off-peak hours can save up to 60% on energy costs.