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Commercial
Sizing for Your Business
Unlike residential systems, commercial sizing starts with your load profile — not just your roof area.
Your ideal system size depends on your connected load, peak demand, load factor, and operating hours — not simply how much roof or land you have available. A larger roof doesn't help if your business only draws a fraction of that capacity; equally, a business with high daytime load can often justify a larger system than its rooftop alone suggests, using ground-mount or carport structures.
What determines your system size
- Connected/sanctioned load and peak demand
- Load factor — how consistently you draw power through the day
- HT (High Tension) vs LT (Low Tension) connection category
- Operating hours and shift pattern
- Available rooftop or ground-mount area
Typical ranges by business type
| Business type | Typical connected load | Typical system size | Notes |
|---|---|---|---|
| Small office / retail | 10–20 kW | 15–25 kW | LT connection, rooftop |
| Warehouse / small factory | 50–100 kW | 40–80 kW | LT or HT, rooftop |
| Large factory / industrial | 200 kW+ | Load-study dependent | HT connection, roof + ground-mount |
These ranges are illustrative only — commercial sizing always requires a load study to confirm the right number for your business.
Get a load study for your business.
We'll analyze your load profile and model system size, ROI, and financing options.
Book a Load Study →