hello @ctriz your existing historical data is not removed when you do a solar set up. Please follow the below steps to do a WiFi
Make sure you are near the device you need to reset
Open the Emporia Energy app on your smartphone or tablet
Select Menu (☰) in top left corner
Select Manage Devices
Select the device you want to make changes to
Scroll to the bottom of the page and select Reset WiFi / Solar Setup
You will not lose any of your data or your device settings during this process
Select the device you want to reset
Select Go to directly to setup
On the Safety Information page select Next
On the Solar / Generation page, select I have Solar / Generation
Turn your solar power OFF so you only have energy from your Utility
Turn ON a load (several large appliances ideally) so the device can calibrate consumption
Select Solar is off and appliance is on
Follow the prompts in the app to locate your device via Bluetooth and connect it to your WiFi network
The Gen 2 will configure your system for Solar Net Metering. Once complete, Save the Name of your Vue and the correct Timezone
Select Ok! Show me my energy
Turn your appliance(s) OFF and your solar power back ON
Your Gen 2 will now show excess generation as green (negative) numbers and bars on the graphs and load will display as blue (positive) numbers and bars on the graphs