Powerpal connects optically to your electricity meter and requires no modifications to your electrical equipment which means usually it can be installed in just a few seconds without requiring an electrician call out.
To see how the product is installed to your electricity meter check out the video at https://www.powerpal.net/install.
Safety note: Take care any time you're working near your meter box. Do not touch any wires or exposed terminals. Do not modify any electrical equipment.
If you are unsure about the installation process or not confident in your ability to install your Powerpal safely please arrange for a qualified electrician to handle the installation for you.