Solar Design Mistakes That Delay MWScale Project Financial Closure
Most delays at financial closure trace back to decisions made in the first 60 days of a project's design, not to problems during construction. By the time a DPR bounces back from a lender or an EPC bid comes in wildly inconsistent, the root cause is usually one of the seven mistakes below.
1. Skipping or Rushing the Site Survey
Cutting corners on topographic mapping, shadow analysis, or soil testing to save a few weeks upfront routinely costs far more time later, when a foundation design or layout has to be redone against data that should have been gathered from the start.
2. OverOptimistic Yield Assumptions in the Simulation
A DPR built on an inflated P50 estimate, without a clearly presented P90 case, is one of the fastest ways to get sent back by a lender for revision.
3. Incomplete or Generic BOQ
A vague bill of quantities invites inconsistent EPC bids, since contractors fill the gaps with whatever components keep their price competitive often not the ones the project actually needs.
4. Wrong Mounting Structure for the Site's Soil and Wind Profile
Choosing a structure type without validating it against the site's actual soilbearing capacity and wind load data risks foundation problems that surface well after construction is complete.
5. Underestimating Land Requirement or Ownership Friction
Committing to a land parcel before confirming it's large enough for the intended capacity and structure type, or before resolving title and landuse questions, is a recurring source of lastminute redesigns.
6. DPR Financials That Don't Match the Technical Design
When the financial model and the technical design are prepared by teams that aren't coordinating closely, the numbers often don't reconcile and that mismatch is exactly what lenders are trained to catch.
7. Late or Incomplete Grid Connectivity Application
Treating the connectivity application as something to handle once construction has started, rather than in parallel with design, is one of the most common and most avoidable causes of a delayed commissioning date.
How to Avoid All Seven
The common thread across all seven mistakes is sequencing: engaging a design consultancy before land is finalized, rather than after, gives each of these steps the time and coordination it needs. The projects that reach financial closure on schedule are almost always the ones where site survey, simulation, engineering, DPR, and grid connectivity were planned as one connected process rather than seven separate ones.
Solyug Energy has helped MWscale developers across India avoid exactly these pitfalls. Talk to us before you finalize your project design, and give your financial closure timeline the best chance of holding.