A factory solar system is sized from a curve, not a list: the building's draw across the production day. This guide sets out what to measure, what to hand over, and how the configuration follows from the curve. The worked example throughout is the 200KW factory configuration.
Gather electricity records across a full production cycle — not a single good month — and note the shape of the day: when lines start, when compressors and motors surge, when the building idles. Starting surges matter as much as steady draw, because a configuration that carries the steady load but trips on a motor start is undersized in the only way the production manager will remember.
Then state the purpose plainly. A system meant to cut daytime grid draw is sized one way; a system meant to protect essential processes through outages carries storage and is sized another. Factories that refuse to choose usually pay for both and get neither in full.
Once the curve sets the target, the roof sets the ceiling: usable area, construction, load-bearing capacity and shading from the building's own plant. Supply drawings and photographs with your consumption records. The 200KW factory configuration shows the structural figures a complete specification should state for its mounting; expect the same completeness, at your scale, in your own project file.
Before ordering, confirm the minimum order quantity and lead time for your configuration, and ask which documents apply to the exact system you are quoted.
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