This article is introductory guidance for preparing a project discussion, not a site-specific engineering design or performance guarantee.
Do not use the bill alone
A monthly bill shows overall consumption, but not when that energy is used. Sites with stronger daytime loads often have more opportunity to consume solar generation directly.
Data to review together
Prepare recent electricity bills, roof photos, single/three-phase supply, approximate roof area and daytime/nighttime usage. These inputs are more useful together than one bill figure.
Homes and businesses behave differently
Homes may use more energy after work, while shops, offices and factories can have strong daytime loads. Solar design should start from the load profile and how the site operates.
Before making a decision
System size, savings and payback should be estimated from verified site data, tariffs and selected equipment rather than one standard assumption for every project.
You can start even if the information is incomplete
An electricity bill, board photo, roof photo, water-source photo or site pin is enough to start a more focused conversation.
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