Does adding batteries class as an alteration?
• You can add a battery to any existing solar power system and it would not be classed as an alteration.
• Batteries that are retrofitted are typically AC coupled. This means they’re connected directly into the 240V AC in the switchboard using an AC battery inverter.
• However, if you installed your solar system several years ago, it’s likely that you will need to expand it. This is to ensure it generates enough power to charge the battery during the day.