A solar installation includes a complete electrical system connecting the panels to the inverter and the property's electrical installation. Good cable routing, protection and commissioning are essential.
DC electricity from the panels
Solar panels generate direct current electricity. DC cabling connects the panels to the inverter or other compatible equipment.
The role of the inverter
The inverter converts the panels' DC electricity into AC electricity suitable for use by the property and, where permitted, export to the grid.
Electrical protection
- Appropriate isolation
- Overcurrent protection where required
- Earthing and bonding
- Surge protection where applicable
- Correct cable sizing
- Appropriate AC protection
Monitoring
Modern systems commonly provide monitoring that allows customers and installers to view generation and identify unusual behaviour.
Electrical design matters as much as panel selection
The performance and safety of a solar system depend on the complete electrical design, not just the panels installed on the roof.
Frequently asked questions
Does solar installation require electrical work?
Yes. Solar panels must be connected through suitable DC and AC electrical equipment, protection and an inverter.
Where is the solar inverter installed?
It is normally installed in a suitable accessible location with appropriate environmental and electrical conditions.
Andrew Collins
Electrical Installation Lead at BrightGrid Energy


