Often yes, but not always by simply adding modules to the existing strings. Old and new panels can have different voltage and current characteristics, and mixing them on one string can drag down performance. We check whether new modules suit your array or need their own string and inverter input, then plan accordingly.
Common signs are rising bills despite solar, an inverter nearing end of life, or new load such as extra equipment or EV charging. Falling output or frequent faults also point to it. A capacity review confirms whether the current solar system still matches your usage, or whether expanding is the better move.
Usually, yes. Increasing system size generally requires re-approval and Western Power notification before the work is connected, and it can change your export limit conditions. We manage this as part of the project so the expanded system is approved and compliant. You can contact us to discuss your site’s situation.
Cost depends on how much capacity you add, whether the inverter can take the extra load or needs replacing, how much mounting and cabling can be reused, and whether storage is included. Approval requirements also play a part. We assess the system first, then provide a written quote so you see what drives the figure.
It can. Adding capacity may push the system past its current export arrangement, and Western Power may apply or revise an export limit for the larger system. This affects how much you can send to the grid versus use or store on site. We factor any limit into the design so the expanded system performs as expected.
If your panels and infrastructure are sound, expanding is usually more cost-effective than a full replacement because you reuse what still works and pay only for the added output. If the system is ageing throughout or badly undersized, a larger rebuild may make more sense. The assessment makes that clear.
