Up to now we have learned what a photovoltaic system and what are its components. So, we have reviewed existing incentives and we focused on New Energy Bill and we learned how to properly carry out
sizing.
Determine the size, ie the power of our system, we can proceed on the purchase. At this point we should be able to locate and select the right supplier. And, therefore, to evaluate an offer technical and economic.
What are the requirements that a serious and professional supplier must comply? What should I do? It must be written as a quote? What information should it contain? And what are the documents that should be attached to the quote?
Secrets to read a quote :
the information it should contain: A techno-economic estimate must, of course, bring the stock
relative economic photovoltaic plant proposed. But not only. Set out the main features of techniques to locate the plant in question, and if possible with pictures, drawings and attachments. The budget must contain the information in a clear, easy to consultare.In any case, the estimate should include both words and numbers. In fact both are needed: the words to explain, to explain, to clarify, the numbers to express the economic price.
I refer to your type of quotes " turnkey .
start from the heart of the system. The voice on the supply, that is. Must be specified the different components: photovoltaic modules, inverters, mounting structure, wiring and panels elettrici.Per modules, for example, the budget must specify the make, model, indicating the type of silicon used (mono or polycrystalline), the Nominal and other useful features for their connection to the mains and, in particular, references to the guarantees.
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