Guides
Commercial solar, one question at a time
Each guide answers one question a business asks before it buys, with the working shown and the sources linked.
100kW solar system for business: approval, the 1 October 2026 change and payback
A plain guide to 100kW business solar: the roof and power it makes, the network approval it needs, the 1 October 2026 rule change, and a payback table.
Updated 28 September 2026
30kW solar system for business: is it big enough for you?
How much power a 30kW solar system makes, the roof it needs, whether it suits a small business, and a payback table you can check your own quote against.
Updated 28 September 2026
50kW solar system for business: how your opening hours change the payback
A plain guide to 50kW business solar: the roof it needs, the power it makes, why your opening hours matter most, and a payback table to check your quote.
Updated 28 September 2026
Demand charges: what they are, how to spot them and how to cut them
Part of your business power bill can be set by your single busiest half-hour. Learn how to spot a demand charge on your bill and practical ways to lower it.
Updated 28 September 2026
STCs for business: how the solar discount works, and the 1MW change
STCs are a government discount that comes off your business solar price upfront. See how the discount is worked out and what changes from 1 October 2026.
Updated 28 September 2026
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