2025 SolarGrade PV Health Report


Do you care about the quality of solar construction? This report was written for you. We benchmarked the performance of 70 EPCs using 5 GWs of field data from over 1,000 PV systems inspected by our partners at HelioVolta. The report provides a clear benchmark for assessing EPCs and subcontractors and shares best practices for quality control and assurance.
See how construction quality impacts project value and learn how to protect your solar investment by preventing workmanship issues.
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2024 SolarGrade PV Health Report
The second edition of our flagship white paper analyzes PV system health with over 100,000 data points from hundreds of field inspections.