Log in to ennexOS (ennexos.sunnyportal.com) with your SMA ID (combination of email address and SMA password).

Note: if your system is still on the old Sunny Portal, you must first move it to the newer EnnexOS - see here for the steps to take.

Click on the gear icon for 'Configuration'

Click on Rates

Scroll to 'Electricity Rate' and click on the arrow for the 'dropdown' at 'rate type'

Select 'Dynamic' as rate type

Note: if the 'Dynamic' option does not appear at rate type, your Sunny Home Manager probably has not yet received an update to version 2.18. This update happens automatically and does not take place at every installation at the same time. It may work in a few days: please be patient!

When you have selected 'dynamic', the prices from the EPEX market appear on the screen

Enter the surcharge you pay on top of the bare market price. This surcharge differs per energy supplier. Usually it is about 2 cents per kWh. In addition, there is an energy tax of about 12 cents per kWh

Don't forget to click 'save' at the bottom

For best performance, the system must be set to the optimization goal 'economic'.

Go to Configuration and then 'Energy Management'

Scroll down to 'Optimization Goal'. Click on the pencil to adjust

Select the option 'economic' as 'optimization goal' and click save

The battery forecast also needs an adjustment. To do this, go to 'Battery' under 'Energy Management' and click on the pencil

Slide the setting to the right to activate 'battery charging based on forecast'

Ensure that the SoC (State of Charge) of the battery, above which charging based on forecast may take place, is at zero percent

Scroll down and click 'save'

Now everything should be set up correctly. The system will now try to optimize based on both the available solar power and expected consumption in the home, as well as the market prices for electricity. On the SMA Energy App you can see what this means for your system. 

More detailed information about this can be found in this comprehensive document from SMA

Note: for feed-in you cannot currently enter a dynamic rate, only a fixed rate. SMA recommends choosing a rate for feed-in that is relatively low, so that the system prioritizes your PV energy. We think that a fixed feed-in rate of 5 to 10 cents per kWh gives the best results.