When you shift your appliances to cheap windows, you're not just saving money. You're using surplus clean wind power that would otherwise go to waste - and taking demand off the gas-fired grid during peak hours.
UK electricity changes character every half-hour. At 6pm on a cold winter evening, it runs mostly on gas - expensive, carbon-heavy, and stressed. At 2am, it runs on whatever the wind is doing. Understanding this is what Octopus Agile was built for.
Offshore wind turbines don't stop when the UK goes to sleep. Surplus power drives prices down - sometimes to zero, sometimes below. Running appliances overnight uses this clean surplus directly.
Demand peaks between 5pm and 8pm every weekday. Gas-fired power stations fire up to meet it. Electricity is both most expensive and most carbon-intensive in those hours. Avoiding them helps.
National Grid needs households to shift demand away from peaks. Octopus Agile is built exactly for this. Every household that shifts a wash or charge helps balance the grid for everyone.
Grams of CO2 per kWh. Source: National Grid ESO carbon intensity data. Figures are typical UK winter values and vary by region and day.
The price signal on Octopus Agile isn't random. It directly reflects what's happening on the UK electricity grid right now.
When wind output is high, supply exceeds demand and wholesale prices fall. Octopus passes this directly to Agile customers as half-hourly prices. Low price = high wind. It's that simple.
Evening peaks force gas peaker plants online. Gas is expensive and carbon-heavy. Prices spike. By avoiding 5pm to 8pm, you avoid both the bill and the emissions - without doing anything different to your routine.
When wind output is so high the grid can't use it all, prices go negative. Octopus credits your account for every unit you use. These windows are the cleanest, cheapest electricity the UK produces. AgileAlert tells you the moment they arrive.
Our guides explain exactly how to reduce your carbon footprint without changing what you use - just when.
When to run your washing machine, dishwasher and dryer to save money and cut carbon - with exact times for Agile customers.
The complete guide to cutting your electricity bill without cutting your lifestyle - starting with timing your appliances.
An honest look at who benefits from Octopus Agile, who doesn't, and what you need to do to save money on it.
Open the live dashboard. Carbon intensity updates every 30 minutes alongside price. Free, no account needed.
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