Your data is stored in a database hosted by our website host (Hostinger).

The service has been built largely on the ideas by existing users, so please get in touch if you think you’re on to something! We’re always looking to expand the features offered. 

You can upgrade, downgrade and cancel your subscription in the Membership Account page. If you want to delete your data completely please contact support.

When you return to MyEO after pausing your subscription, it’s best to update both the inverter and electricity account.

1. Update the electricity account by navigating to Account >> Account Settings >> Electricity Account Tab and then click update. This will fetch your current electrcity account details.
2. Update the inverter by navigating to Account >> Account Settings >> Battery Inverter Account Tab and then click update. This will fetch the past year’s data from your inverter.
3. Update your electricity high consumption threshold if needed to tailor the calculation to your normal electricity use (to ignore intermitant high loads such as EV charging). Account >> Account Settings >> Electricity Settings. Update the energy value as required and click update.
4. Make sure you are on the latest version of the service, as this will introduce the latest features. Features are not further developed in previous versions. Account >> Account Settings >> Settings. Select the version from the drop down list, and save.

Please get in touch if you would like any help in getting restarted.  

We use the installation details of your PV array that you have entered in the settings, to estimate the generation via a 3rd party weather forecasting service. Your property location (Latitude and Longitude), array size, declination and azimuth are shared with the 3rd party to allow this. Forecasts are taken every 8 hours, with the final forecast of the day used for automatic setting of the target battery charge. As we can’t be sure of the exact installation details, we allow you to include a margin on the generation forecast. This could be beneficial if you have shading on your PV array for example. As with all weather based services, the accuracy can not be guaranteed, and therefore allowing a margin is also sensible to offset for over estimation of the generation.

Between 20:00 and 22:00 MyEO gets the latest weather forecast, calculates the estimated energy needed from your battery, and should you choose it, automatically sets your inverter’s target State of Charge (SoC) accordingly.

Yes. You can enter the number of separate solar arrays, each with their own orientation.

To set up the service, you need to work through the account settings in order, first entering the details of your electricity and inverter accounts, and then by entering the settings to make the app work as you prefer. If you re-enter your account details, your previous history for that account will be deleted so please be aware. You can change / tweak your settings without affecting your historical data. Once complete, you should start to see data available by examining the various charts. You will also be able to see our first forecast for tomorrow’s energy use and generation in the Optimiser. If you do have nay problems, please reach out.

If you change or renew your tariff, you need to get MyEO to fetch the new data. To do this navigate to Account Settings >> Electricity Account Settings tab, and click on the update button (without changing any of the data). 

Your new tariff should be fetched and the service should then continue as normal. 

Not yet sorry. 

Not quite yet, but this is now in Beta Testing (Sept 24)

Yes. MyEO is able to detect the cheaper and peak periods based on a tariff threshold price that you enter. 

Yes, version 2 of the app works with any regular tariff. You can set up time blocks to align with your cheap rate. 

Yes. Arguably, the service provides the most functionality for those on Agile. For example, MyEO allows you to automate the charging of your battery in the cheapest Agile slots, and discharge your battery in the most expensive slots. 

For now, the service only works with Octopus Energy.

In March 2025, GivEnergy began releasing a new setting on their inverters called Real Time Control. “This is designed to optimise the inverter performance under high-demand conditions.” – GivEnergy

What are high-demand conditions?

• GivEnergy defines high-demand conditions as any situation where more than one command (write) is sent to the inverter every 7 minutes. A write is a command sent to the inverter via any method — this includes API services (like MyEO), local control (like Home Assistant), or even frequent use of the GivEnergy app.

Should I enable Real Time Control?

• Yes, if it is available for your inverter. GivEnergy has a Fair Use Policy (stated via Facebook), and sending more than one command every 7 minutes could breach this. Real Time Control helps prevent that from happening. If you choose not to enable it when available, you could risk invalidating your warranty.

Does this only apply to MyEO?

• No. Any platform that sends commands to your inverter must comply with GivEnergy’s write frequency policy. That includes MyEO, Home Assistant, and even the official GE app.

Why does it matter?

• MyEO sends multiple commands based on your preferences. For example, if you’re using both charge and discharge control, MyEO may send 12 or more commands every 30 minutes — averaging one every 2.5 minutes. This exceeds GivEnergy’s recommended limit.

How do I enable Real Time Control?

• Real Time Control will be available through a firmware update. Once installed, you can enable it via your GivEnergy Portal by switching on the Real Time Control feature.

Where can I learn more?

• GivEnergy has shared more details in their official Facebook group. Their post includes supported firmware versions and a reminder that not all inverters had this feature as of the time of writing. GivEnergy Facebook Post

Summary

Enabling Real Time Control helps ensure your system stays compliant with GivEnergy’s policies and should improve performance during high-demand periods. Keeping your inverter firmware updated is generally a good idea — for both security and warranty protection.

The easiest way is to access the log in your inverter. This video shows how to do this for GivEnergy users.  

For now, the service only works with GivEnergy Inverters. It is only the Inverter which is connected to your battery which needs to be GivEnergy. 

That is definitely the intention. The product roadmap is currently focussing on increasing the functionality with GivEnergy Inverters. The next stage is to connect other manufacturers. The FAQ will be kept up to date with progress with other manufacturers. 

No. Sunsynk have confirmed that their API only provides read only access so there is no method available for me to control your inverter via the internet / cloud.

There are no guarantees of what might be possible, but these are the inverter manufacturers that are currently planned for that initial review: AlphaESS, Fox ESS, GroWatt, Lux Power, SAJ, SolarEdge, SolaX, Solis, Tesla, Victron.

We recommend revoking your Inverter API key / token within your Inverter account as the most robust way to prevent MyEO from controlling your inverter. This advice would follow for any 3rd party access you have provided to your inverter. You can also delete the API key / token from MyEO in the inverter settings page. This will not impact your MyEO subscription, so you can add the API key back later when you’re ready for MyEO to control your inverter once again.

Optimise Discharge Export Mode recognises if you have an Octopus Export tariff set up. If you do, MyEO will give you the option to automatically discharge your battery when the export price is higher than your import price, to maximise your export income. Optimise Discharge Threshold Mode monitors your import price, and should you choose to, will automatically discharge your battery when the price is over a threshold, aiming to reduce your import.

You can trigger your battery to start charging from the grid, stop charging from the grid, and stop charging from the grid and solar using the settings withing MyEO.  

We evaluate the historical consumption data that is saved in your inverter to estimate your future daily demand. It’s based on a rolling average, so if your demand changes through the season, MyEO will adjust to the new demand. 

Optimise Charge works in two different ways. If you have an Octopus Agile import tariff, MyEO will recognise this and give you the option to automatically set your inverter to charge in the cheapest time slots. If you have a non-agile tariff, you can choose to automatically charge your batteries when the import price is less than your chosen threshold.

Between 20:00 and 22:00 MyEO gets the latest weather forecast, calculates the estimated energy needed from your battery, and should you choose it, automatically sets your inverter’s target State of Charge (SoC) accordingly.

I’m aware that updating your payment card details via stripe does not always go to plan! If you have tried to update your card (perhaps the old one has expired), and it doesn’t look to have worked, please get in touch. It seems the new card details get saved correctly in Stripe, but it doesn’t always update the payment method to the new card correctly. I can help resolve with this.

Payments are administered through PayPal or Stripe, with the option to select your preferred method at checkout. By using these services, MyEO does not need to store the payment details (e.g. credit card), as these are all managed by the provider. 

Each provider has different options for how you pay, with Stripe allowing you to connect directly to a credit card.