Path-Q Solar
Should I plan for a future home extension when choosing solar capacity?
Answer
Usually, account for a reasonably likely extension if the roof, electrical service, budget, and future design can support it; avoid paying now for speculative capacity that may not be usable.
Key points
- Estimate the extension's future electricity loads.
- Check whether future roof area or electrical equipment will be available.
- A staged or expandable design may be preferable.
What it depends on
- Timing and size of the extension
- Future loads
- Inverter, roof, and service expansion options
Risks and trade-offs
- Unused capacity ties up capital.
- Waiting may mean different equipment, costs, or rules.
- Future construction may require panel removal.
Information you may need
- Extension plans
- Expected appliances and heating
- Installer's expansion assumptions
Your next step
What to do next
Ask installers to price both a current-use design and a documented future-load option.
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SQ00035