Utility-scale solar plants are under mounting pressure to deliver maximum energy output while meeting strict performance guarantees. This pressure is reshaping the role of irradiance monitoring; precision now directly affects a project’s financial performance.
Although Global Horizontal Irradiance (GHI) and Plane of Array (POA) are widely understood, the role of Diffuse Horizontal Irradiance (DHI) is often underappreciated.
In fact, in modern PV systems, diffuse irradiance derives a significant share of energy yield. Accurate characterization of the diffuse sky component is essential for both performance prediction and operational optimization. This is especially true for those using bifacial modules with single-axis trackers.
This trend means plant operators and asset managers need to understand the impact of DHI when evaluating solar sensor technology.
Read the full article in North American Clean Energy.
Words: Wayne Burnett, Chief Strategy and Technology Officer, EKO Instruments USA Inc.
