Most underperforming solar assets were not built badly. They were specified badly, against assumptions nobody tested. The cheapest point at which to correct a sizing or technology decision is before procurement, not after commissioning.
Because assumptions set at feasibility stage determine the returns. Correcting a technology or sizing decision after procurement is considerably more expensive than correcting it before.
Site conditions, load profile, tariff structure, available area, grid connection, approval route, and the financial model built on all of them.
The purpose of the exercise is to establish what the site genuinely needs, including the case for doing less than was originally proposed.
Tell us the site, the load and the constraint you are working against, and we will tell you what is realistic.
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