BrightGridA home extension can change the roof area, electricity demand and shading profile of a property. If you are planning an extension, it is worth considering solar at the same time.
Can the extension roof have solar panels?
Potentially. The suitability depends on roof orientation, pitch, available area, shading and structural considerations.
Why does an extension affect solar sizing?
An extension can add lighting, appliances, heating or other electricity loads. That additional demand should be considered when sizing the future solar system.
Plan electrical routes before construction
Installing cable routes and suitable electrical infrastructure during renovation can be easier than creating new routes after the extension is complete.
Consider battery storage
If the renovation includes higher electricity demand, battery storage can be considered alongside the solar design to increase flexibility.
Renovation is a good time to think ahead
Planning solar, battery and EV infrastructure while building work is underway can reduce future disruption.
Plan solar alongside your renovation
Coordinate your future electricity demand and solar system before the extension is completed.
Plan Your Solar SystemFrequently asked questions
Can solar panels be installed on an extension?
Yes, provided the extension roof is suitable in terms of orientation, pitch, structure, shading and available area.
Should I install solar during an extension?
Planning the system during construction can make electrical routing and roof integration easier.
Does an extension mean I need more solar panels?
Potentially. Additional electricity demand from the extension can be included in the solar design.
Natalie Brooks
Residential Energy Designer at BrightGrid Energy
