Between a quotation and an order sits a short list of questions whose answers decide whether the delivered system matches the discussed one. Ask them in writing, and keep the answers with the order.
Confirm the exact models and quantities, as a set. Confirm what the configuration does when the grid fails: which circuits stay live, and on what storage. Confirm the load list or profile the configuration was sized against, and have it attached. Confirm mounting for your roof construction, not for a generic roof. Each of these is a factual question about your order; none of them should be answered with a brochure.
Confirm the commercial questions in the same pass. Before ordering, confirm the minimum order quantity and lead time for your configuration. Ask which certificate documents apply to the named models, and how the system will be packed for its journey to your site.
A solar system is assembled from components made in batches, shipped in crates and installed by people who were not in the sales conversation. The written confirmation is the only thread that connects the discussion to the delivery. When something differs on arrival — a model, a quantity, a missing document — the written answers are what turn an argument into a correction.
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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