Cost-Effective Drying Day Planner

Analyze weather forecasts, electricity prices, and carbon intensity data to identify optimal times for air-drying laundry outdoors. Get 7-day forecasts with cost and carbon savings calculations, helping you reduce tumble dryer usage when conditions are ideal.

⏱️ 3 minutes • 💪 Short

Updated February 2026

How This Tool Works

📋 Purpose

Analyze weather forecasts, electricity prices, and carbon intensity data to identify optimal times for air-drying laundry outdoors. Get 7-day forecasts with cost and carbon savings calculations, helping you reduce tumble dryer usage when conditions are ideal.

⚙️ How It Works

  1. 1
    Enter your UK postcode to get localized weather forecasts and electricity pricing
  2. 2
    Set your tumble dryer power consumption and cycle duration
  3. 3
    View a 7-day calendar with optimal drying windows and savings calculations
  4. 4
    Review cost and carbon savings for each opportunity
  5. 5
    Export your schedule as CSV or JSON

Your Details

Enter your location and tumble dryer specifications

Typical range: 2-4 kWh

Typical range: 60-120 minutes

Ready to Save Money?

Enter your postcode above to discover the best times to air-dry your laundry and see how much you could save on energy bills.

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Complete Guide

Quick Tips

Jump-start your understanding with these essential tips

Step-by-Step Guide

Follow these steps to get the most from this tool

Why postcode matters: Weather varies significantly across the UK. Glasgow: 150-160 rainy days/year (fewer drying days). London: 110-120 rainy days/year (more drying opportunity). Peak drying seasons: May-September (reliability). Worst seasons: November-February (rare good days). The tool uses localized forecasts so results are specific to your location, not national averages.

Electricity pricing region: Postcodes map to Octopus Energy Agile pricing regions (12 UK zones). Your price per kWh varies by region and time of day. South East: Off-peak avg 10-12p/unit, Peak 50-60p/unit. North: Off-peak 9-11p/unit, Peak 45-55p/unit. If you're not on Agile, the tool uses typical time-of-use rates (peak/standard/off-peak) as a reasonable model.

Using the tool with different tariffs: If you're on standard tariff (single rate ~25p/unit), all dryer runs cost the same. The tool will show air-drying is best when weather permits. If you're on Agile or Economy 7, the tool optimizes: show when air-drying costs more than drying off-peak, and suggests running dryer at cheapest hours.

Cross-tool context: Use with Weather-Aware Energy Planner for EV charging and appliance scheduling using same Agile prices and weather data.

Advanced Topics

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