First Solar ADvise™ ADVANCED DIAGNOSTICS FIRST SOLAR O&M SERVICES ADvise™ FEATURES Advanced diagnostics and plant analytics performed Daily DC health analytics Daily sensor validation analytics Weekly performance engineering review DC health performance recommendations Monthly performance review ADvise™ Web portal Module health field sweep and report (optional) Monthly plant performance report (optional) Solar asset owners entrust more gigawatts (GW) of PV power plants to First Solar than to any other company in the world. With over 3GW in operation and more than 4.5GW of total contracted capacity worldwide, GTM Research named First Solar the world’s leading provider of O&M services for utility scale plants. With a state-of-the-art Operations Center, advanced performance analytics, and technical expertise, our comprehensive service offering optimizes energy output and revenue for customers while mitigating risk. ADvise™ ADVANCED DIAGNOSTICS With First Solar ADvise™, solar asset owners leverage our experience in utility-scale O&M to maximize plant output and reduce operational expenses. By pinpointing suboptimal plant performance and making actionable recommendations to local operators, ADvise™ delivers value that far exceeds standard energy monitoring products. Our proprietary diagnostics and expert analysis maximize system availability, energy output, and revenue while reducing operational expenses for our customers. ADvise™ BENEFITS REDUCE OPERATIONAL EXPENSES • Targeted maintenance streamlines efficiencies and reduces costs • Proactive maintenance results in prolonged equipment life First Solar, Inc. | firstsolar.com | [email protected] OPTIMIZE SYSTEM PERFORMANCE • Proactive analysis remedies issues before they become a serious problem • Improved measurement accuracy and energy output analytics (actual vs. expected) ADVANCED DIAGNOSTICS AND TECHNICAL EXPERTISE • Leverage First Solar’s expertise and lessons learned • Benefit from root cause analysis of performance shortfalls

Wire Harness Combiner Box Revenue Meter TARGETED MAINTENANCE With First Solar ADvise™, lost energy can be detected at the inverter, combiner box, wire harness, and even string level. This granular level of targeted maintenance allows our customers to quickly detect and remedy issues, resulting in increased energy yield and project revenue. ADvise™ WEB PORTAL The ADvise™ Web Portal provides customers with access to generation data, work order history, a performance heat map, high-resolution metrics, plant procedures, engineering drawings, and monthly and annual reports. firstsolar.com | [email protected]...