Weather-Aware Home Energy Planner

Combines real-time Open-Meteo forecasts, Octopus Agile half-hourly prices, UK carbon intensity, and verified seasonal benchmarks (Ofgem, National Grid ESO) to build a 24–72 hour schedule for your appliances and EV. Optimize for cost or CO₂, resolve conflicts, and export to CSV or iCal.

⏱️ 5 minutes • 💪 Short

Updated February 2026

How This Tool Works

📋 Purpose

This tool turns live weather, half-hour electricity prices, and carbon forecasts into a practical home energy schedule. It shows what to run, when to run it, and why those times are better.

⚙️ How It Works

  1. 1
    Enter your UK postcode. We validate it and map it to your local weather and Agile pricing region.
  2. 2
    Choose a 24, 48, or 72 hour window, then choose whether to optimize for lower cost or lower carbon.
  3. 3
    Add each appliance with the earliest start, latest end, and run duration. Add EV charging if needed.
  4. 4
    We fetch live Open-Meteo weather, Octopus Agile half-hour prices plus standing charge, and UK carbon intensity forecasts.
  5. 5
    The planner scores each possible slot and picks the best valid slot for each load inside your time limits.
  6. 6
    You review Key Insights, schedule cards, action windows, and metric explanations to decide what to run and when.

Setup Your Schedule

Enter your location and appliance preferences to get started

Appliance Schedules

Starter schedules are pre-loaded so you only need a postcode to run the planner. Edit any schedule below if needed.

Dishwasher

Current window: 11:00 - 22:00

Washing Machine

Current window: 12:00 - 00:00

EV Charging (Optional)

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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

Enter a valid UK postcode so the tool can fetch your pricing region and local weather coordinates.

Choose a 24, 48, or 72 hour horizon. Shorter horizons are usually more reliable for exact timings.

Select cost mode for lower bills or carbon mode for lower emissions.

Advanced Topics

Deep dives for advanced users

📚Read More Articles

Discover helpful guides and insights

Frequently Asked Questions

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