EPC contractors assume full project delivery responsibility from design through commissioning. For commercial solar PV, EPC contracts are standard for larger projects financed by investors or PPAs. The EPC contractor coordinates all pre-construction surveys, including structural assessment, drone roof condition assessment, and electrical survey, as part of their pre-construction due diligence.
Solar Surveys works directly with EPC firms to provide structural and drone survey packages required before project execution. The 48-hour delivery benchmark for Desktop Structural Roof Loading Reports is designed to fit within EPC project programming timelines where structural assessment sits on the critical path between site acquisition and financial close.
What an EPC contractor needs from the structural step
An EPC contractor carries the structural risk between site acquisition and financial close: lenders and PPA providers expect engineer-signed structural evidence in the due-diligence pack before they commit funds. EPCs that build an independent structural assessment into pre-construction clear that gate cleanly; those that defer it to the construction phase are where projects stall. Keeping the structural sign-off independent of the installer and the EPC's own design is what gives a lender confidence in it.