Experienced and specialized in auditing, evaluation and optimization of solar parks as well as large scale roof-top PV-applications, Sunnyside upP GmbH and Stein Engineering & Consulting GmbH offer their downstream service along the entire value chain: Consulting & project monitoring for ooconstruction of solar parks. Profit yield analysis. Damage appraisal for private and public ooentities. Quality securing of PV-module and plant oocomponents. In-situ measurements. Performance check & tuning. Certified acceptances. Technical due diligence for solar parks. Plant operations support & revenue assurance.