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Externa’s Advisory Services

Externa offers targeted administrative/financial/technical advisory services on request. In 10 years of experience, Externa’s team has built a wide network of collaborations with professionals and technicians in the PV sector, with whom it is able to expand the range of the services offered.



  • Targeted accounting/economic/financial analyses
  • Forecast analysis: business plan (investment, sale, financing)
  • Cost/benefit and feasibility study on specific measures (e.g. revamping/repowering, extraordinary maintenance) 
  • Data room creation for ordinary and extraordinary activities


  • Independent technical analysis of the power plant to assess risks and criticalities
  • Due diligence on the actual technical performance of the plant and on potential efficiency measures to adopt
  • Creation of ad-hoc data rooms (sale, transfer, regulatory adjustments, …)
  • Support in case of GSE audits (document collection, relations with inspecting body and communications)
  • Documentary analysis of authorizations and permits
  • Targeted technical and feasibility study of extraordinary maintenance (revamping, repowering)
  • Technical tests: thermography, I-V curves etc.