Maximising savings on Agile Octopus tariff for Growatt and GivEnergy users

Maximising savings on Agile Octopus tariff for Growatt and GivEnergy users

When we launched our restructured and simplified multiple schedules feature at the end of last year, we mentioned that we were hard at work to develop support for Agile Octopus integration.

Agile Octopus is one of Octopus Energy’s smart and innovative tariffs, offering customers electricity prices that change every half an hour, based on the wholesale price of energy.

Over the past two weeks, we have run a beta with a small group of around 25 users on Agile Octopus. Thanks to them, we’re happy to officially announce that Agile Octopus integration is now available for all users.

This means that if you have a Growatt, GivEnergy or Solax inverter, you can configure your charging window for Agile Octopus and Wonder Watt will pick the cheapest slots for you, saving you the hassle to have to set up schedules on often clunky inverter software.

To try our Agile Octopus automation out for yourself, and see what it’s all about, click the button below.



Like with our regular charge and discharge schedules, Agile Octopus is supported on the same inverter hardware, which includes GivEnergy gen 1 & gen 2 inverters.

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Multiple schedules: Smart charging and export slots for Growatt and GivEnergy

Multiple schedules: Smart charging and export slots for Growatt and GivEnergy

We are pleased to announce the general availability of the long-awaited multiple schedules functionality for our users with GivEnergy or Growatt systems on Time-Of-Use (TOU) tariffs.

This means you can now configure up to five schedules, be it a charge or export schedule. You can do this via one unified view, called ‘Schedules’, which replaces the previous ‘Smart Charging’ and ‘Optimise Export tariff’ views.

This article details how Wonder Watt is transforming energy management for users on TOU tariffs, with multiple easy-to-use schedules, delivering a streamlined, cost-effective, powerful and above all, hands-off approach.

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Get a £20 / $25 Amazon voucher for signing up and using Wonder Watt

Get a £20 / $25 Amazon voucher for signing up and using Wonder Watt

We are thrilled to announce a special promotion at Wonder Watt for the remainder of the month of June 2023.

As a token of appreciation to our valued users, starting from 14th of June, we are giving away a £20 Amazon voucher to the next 25 people who sign up and utilise the Wonder Watt service.

Participation is open to all individuals who own a Growatt or GivEnergy inverter with battery storage.



Wonder Watt’s smart charging app optimises the charging and grid export process for your solar energy storage system, allowing you to maximise the use of renewable energy while reducing costs.

With our in-house algorithm and solar forecasting based on your location’s weather forecast, you can experience the power of intelligent energy management.

To take part and claim your £20 Amazon voucher, simply sign up and start using the Wonder Watt service during the remaining days of June. As soon as you’re onboarded, you will be automatically entered into the promotion.

The first 25 qualifying participants will receive their Amazon vouchers as a token of our gratitude.

Don’t miss out on this fantastic opportunity to both enhance your solar energy management and receive a reward for your valuable feedback. Sign up now and join the Wonder Watt community!

Note: Terms and conditions apply. The promotion is valid only for the first 25 qualifying participants who sign up and use the Wonder Watt service between 14th of June and the end of June 2023.

Amazon vouchers will be sent electronically to the winners after the promotional period ends.

Using the service means: having enabled Smart Charging or if applicable, enabled ‘Optimise Export Tariff’.

If you have any questions, please feel free to DM us on Twitter or drop us a line via e-mail.

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Wonder Watt launches smart charging solution for GivEnergy hybrid inverters

Wonder Watt launches smart charging solution for GivEnergy hybrid inverters

Today, Wonder Watt is launching a smart and predictive charging solution for users with GivEnergy battery systems.

Hybrid inverters like the HY 5.0 as well as AC coupled inverters like the AC 3.0 are confirmed to be working.

To get started, all you need is a Google account.


We already support Growatt, so this is our second integration, with more to follow still!

With our in-house built solar forecasting algorithms we calculate solar yield for your installation and use that information to charge your battery during off-peak/TOU tariffs (like Economy 7, Octopus Flux or Octopus Go) or export to grid depending on the tariffs and settings you have specified.

Take a look at the explanation of our Service Dashboard, and sign-up for free.

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A new dawn for Energy Charity: the Solar Donation Initiative or #ShareYourSolar

A new dawn for Energy Charity: the Solar Donation Initiative or #ShareYourSolar

Over the last couple of days, we’ve had some good threads on Twitter regarding donating part (or all) excess solar export to households that are struggling to pay their energy bills.

Initially tweeted by Dave Cole and supported by Kevin Holland from The Solar Shed, we at Wonder Watt are fully behind an initiative like this.

Tweets discussing donating export
Tweets discussing donating export solar

Users that sign up for a SEG arrangement with a supplier would simply tick the amount of their export that they would like to de donated, perhaps in 25% increments: 0%, 25%, 50%, 75% or 100%. The energy suppliers work out the rest, in coordination with government organisations.

Kevin Holland calls it: the Solar Donation Initiative Share Your Solar, a much better term than our original take.

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