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

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 account completely please contact support.

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.

Not currently, but it’s on the list to investigate further. 

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

No. These tariff’s are not smart, and therefore the system is not currently compatible with these tariff’s. Version 2.0 (currently in beta testing) will be compatible. 

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.

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

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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.

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.

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.