develops 100% renewable projects

Solar PV
Engineering Case Studies
Real-world applications of performance engineering, asset intelligence, and operation & maintenance in solar PV projects.
Our case studies demonstrate the application of data-driven engineering methods to solar PV performance, reliability, and long-term asset value.
Each study presents the engineering approach, technical analysis, and key findings from real-world projects to support performance optimization and reliable system operation.
Solar PV Performance Verification
Irradiance-based generation modelling and performance assessment
A grid-connected solar PV plant was evaluated using actual generation data and an irradiance-based production model over a seven-day assessment period.
Dev Marmara's Solar Intelligence framework modelled expected generation using independently sourced solar irradiation data and compared it with actual production through the Solar Performance Index (SPI).
The weekly SPI reached 99.10, indicating generation 0.9% below the modelled expectation. Daily deviations were analyzed to assess production trends and identify potential performance anomalies.


Realized versus expected generation and daily deviations. Production exceeded the irradiance-based expectation on two days and remained below it on five days, with the largest negative deviation on the final day.


PV string I–V curve testing and drone-based infrared thermographic inspection to assess electrical performance and identify potential module anomalies.
Solar PV Operation & Maintenance
Electrical testing and drone-based infrared thermographic inspection
An industrial rooftop solar PV plant underwent a comprehensive maintenance inspection, including electrical testing and drone-based infrared thermography.
Dev Marmara performed I–V curve measurements, insulation resistance and earthing tests, and drone-based infrared thermographic inspections to assess electrical integrity and identify potential defects.
The assessment identified soiling-related current reductions, connection deficiencies, and thermal anomalies across selected PV modules. The findings were documented to support corrective maintenance planning and subsequent verification.
Contact
Get in touch for your renewable energy project requirements.
Dev Marmara Teknoloji Enerji A.Ş.
Email: info@devmarmara.com
Phone: +90 212 355 61 86
Address: Büyükdere cad. No:195 K:5 Levent 34394, Şişli, İstanbul, TURKEY