Octopus Agile Plunge Pricing UK 2026: How to Get Paid for Using Electricity

Last updated: 19 October 2026  ·  Originally published January 2026  ·  By SHUK Editorial

Last checked: 19 July 2026. Details, prices, specifications, availability and service terms can change; verify current information before acting.

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# Octopus Agile Plunge Pricing: How to Get PAID to Use Electricity

For related planning, see our guides to energy savings, Best Smart Electric Heaters UK 2026, How to Set Up Smart Home on Budget 2026 UK, Best Smart Thermostats UK 2026 and EV Home Charger Installation Cost UK 2026: Full Price Guide.

**Last updated:** February 2026

## The Short Answer

Yes, you can actually get paid to use electricity with Octopus Agile. If you’re deciding between tariffs, read our Octopus Agile vs Tracker comparison first. When wholesale electricity prices go negative (yes, below zero), Octopus passes those savings to you. We’ve seen rates as low as **-20p per kWh** — meaning you earn 20p for every unit you use. It’s real, it happens regularly, and here’s how to make the most of it.

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## What Is Plunge Pricing?

Plunge pricing occurs when there’s more electricity supply than demand, causing wholesale prices to drop below zero. This typically happens:

– **During windy nights** — wind turbines keep spinning, but everyone’s asleep
– **Sunny weekend afternoons** — solar panels generating at peak, but offices closed
– **Bank holidays** — reduced industrial demand
– **Stormy weather** — particularly windy conditions

Energy suppliers usually charge you a floor price (like 0p) during these periods. But Octopus Agile is different — it passes through the actual negative wholesale rate, meaning **they pay you**.

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## How Often Does It Happen in 2026?

Based on data from late 2025 and early 2026:

– **Plunge pricing occurs roughly 5-10 times per month**
– **Average negative rate:** -5p to -15p per kWh
– **Duration:** Usually 1-4 hours at a time
– **Best months:** Spring and autumn (more wind, moderate demand)

It’s not every day, but when it happens, it’s genuinely free money.

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## Best Devices to Run During Plunge Pricing

### 🚗 EV Charging (The Big Winner)

If you have an electric vehicle and a smart charger like **Ohme**, **Zappi**, or **Pod Point**

, you can schedule charging to happen automatically when rates go negative.

**Real example:** A Tesla Model 3 with a 60kWh battery charging during a -10p/kWh plunge event would **earn £6** while fully charging. Over a year of strategic charging, EV owners can save £200-400 compared to standard tariffs.

👉 See our [EV charger comparison guide](/ev-home-charger-installation-cost-uk-2026/) for compatible chargers.

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### 🍽️ Dishwasher with Delay Start

Most modern dishwashers have a delay timer. Set it for 2pm on a Saturday, check the Agile rates in the morning, and let it run when prices dip.

**Typical load:** 1.5 kWh → **earn 15-22p** per cycle during plunge events.

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### 👕 Washing Machine

Same principle — delay start to coincide with negative rates. Washing machines use 0.5-2 kWh depending on temperature and spin cycle.

**Typical load:** 1 kWh → **earn 10-15p** per wash.

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### 🌬️ Tumble Dryer (Heat Pump Models Best)

Heat pump tumble dryers are efficient (1.5-2 kWh per cycle) compared to vented models (3-4 kWh). Running these during plunge pricing turns a costly appliance into a money-earner.

**Typical load:** 2 kWh → **earn 20-30p** per cycle.

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### 🚿 Immersion Heater

A hot-water cylinder may offer scheduling flexibility, but an installer must confirm its dedicated controls, electrical rating, temperature settings and hygiene requirements. Do not run an immersion heater through a generic smart plug, bypass thermostats or safety cut-outs, or assume a tank will provide a fixed duration of free hot water.

**Typical tank:** 3 kWh to fully heat → **earn 30-45p** per tank.

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### 🔋 Battery Charging (Solar + Battery Owners)

If you have a home battery (like a Tesla Powerwall or Sunsynk)

, charge it from the grid during plunge events instead of from solar. Then discharge in the evening when rates are high.

**5 kWh battery:** **Earn 50-75p** per charge cycle.

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## How to Get Plunge Pricing Alerts

### Octopus App (Built-in)

The official Octopus Energy app shows tomorrow’s rates from 4pm each day. Green = cheap, dark green = very cheap, and you’ll see negative rates highlighted.

### Third-Party Tools

– **Octopus Watch** (iOS) — Push notifications when rates go below a threshold you set
– **Energy Stats** (Android) — Similar functionality with custom alerts
– **Octopus Agile Discord bots** — Community-built bots that ping when plunge pricing is happening

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## Automation Ideas

Want to capture plunge pricing automatically without manually checking apps?

### Smart Plugs on Schedules

Check the actual published rate for each interval. A recurring timer does not know whether that interval is negative-priced; use only a supported integration and an appliance explicitly suitable for the proposed switching.

Start with a low-risk permitted load, such as a compatible lamp, rather than assuming every dehumidifier, heater or motor-driven appliance can be switched by a smart plug. Do not use a smart plug for EV charging.

👉 See our [smart plug guide](/smart-plugs-the-cheapest-way-to-start-your-smart-home/) for recommendations.

### Home Assistant Automation

For the technically inclined, Home Assistant can:
– Pull Octopus Agile rates via API
– Automatically trigger devices when rates go negative
– Integrate with EV chargers, heat pumps, and batteries

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## Real-World Savings Example

Illustrative arithmetic only: the following assumed kWh and rates are not a typical-household forecast or measured customer result. Eligible equipment, losses, applicable rates and safe scheduling must be established separately.

| Device | Monthly Plunge Usage | Negative Rate | Monthly Earnings |
|——–|———————|—————|——————|
| EV charging | 150 kWh | -8p average | **+£12** |
| Dishwasher | 8 kWh | -10p average | **+£0.80** |
| Washing machine | 6 kWh | -10p average | **+£0.60** |
| Immersion heater | 15 kWh | -12p average | **+£1.80** |
| **Total** | | | **+£15.20/month** |

**Annual benefit:** Around **£180/year** in “negative bills” — on top of the savings from avoiding peak rates.

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## When NOT to Wait for Plunge Pricing

Plunge pricing is a bonus, not a guarantee. Don’t:

– **Skip essential loads** waiting for negative rates that never come
– **Leave wet clothes** in the washer for days hoping for plunge pricing
– **Turn off the fridge** — some things need to run 24/7

Use it for flexible loads only. The Octopus Agile vs Tracker comparison ([full guide here](/octopus-agile-vs-tracker-2026-smart-homes/)) helps you decide if Agile is right for your lifestyle.

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## Summary

Plunge pricing is one of the most exciting features of Octopus Agile. With the right setup — especially an EV charger and some smart scheduling — you can genuinely get paid to use electricity.

**Key takeaways:**
– Happens 5-10 times per month, typically for 1-4 hours
– EV charging is the biggest opportunity
– Smart appliances with delay start make it easy
– Automation takes the effort out of it
– Realistic earnings: £100-200/year for engaged users

It won’t make you rich, but it turns a necessary expense into occasional passive income. And in a world of rising energy costs, that’s no small thing.

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## Related Reading

– [Octopus Agile vs Tracker 2026: Which Tariff Wins?](/octopus-agile-vs-tracker-2026-smart-homes/)
– [Best EV Home Chargers UK 2026](/ev-home-charger-installation-cost-uk-2026/)
– [Smart Plugs: The Cheapest Way to Start Your Smart Home](/smart-plugs-the-cheapest-way-to-start-your-smart-home/)
– [Smart Home Savings Calculator](/smart-home-savings-calculator/)

## Related Articles

• Best Smart Thermostats UK 2026 – Top rated smart heating controls
• Best Smart Home Hubs UK 2026 – Central control for your devices
• Energy Monitoring Systems – Track and reduce your bills
• Hive vs Nest vs Tado – Best smart thermostat to pair with Octopus Agile
• Best Smart Radiator Valves UK 2026 – Cut heating costs room by room

## Frequently Asked Questions

How often does Octopus Agile plunge pricing happen?

Plunge pricing (negative rates) typically happens a few times per month, usually overnight between 1am and 5am when wind generation is high and demand is low. It’s not predictable — you need to monitor the half-hourly rates or use automation to catch it.

Which devices benefit most from Octopus Agile negative rates?

Potentially flexible demand includes EV charging through an appropriate dedicated charger, installer-approved battery or hot-water controls, and appliances with manufacturer-supported scheduling. High power alone is not a reason to automate a load; follow the equipment’s safety instructions and stay present while laundry or dishwashing appliances run.

Is Octopus Agile worth it if I don’t have an EV?

It can be, but the savings are smaller. Without an EV or battery storage, you’re mainly shifting washing machines, dishwashers and heating to cheap periods. The real value comes from automating high-draw devices to run during plunge pricing windows.

How do I automate my home to capture plunge pricing?

Use a smart home hub (like Home Assistant) with the Octopus Agile integration. Set automations to trigger devices when the rate drops below a threshold — for example, start your EV charger when the rate goes below 5p/kWh, or heat your water tank when rates go negative.

What’s the maximum I can save with Octopus Agile?

Heavy users with EVs and battery storage report saving £150–£300 per year compared to a standard variable tariff. During extreme plunge events, you can genuinely earn money — Octopus pays you to use electricity. Most households save £50–£100/year with moderate automation.

Can I switch back from Octopus Agile if rates spike?

Yes — Octopus lets you switch tariffs without exit fees. Agile rates can spike during peak demand (up to 100p/kWh), so it’s important to avoid using power during 4pm–7pm peaks. If you can’t shift your usage patterns, Agile may cost you more than a fixed tariff.