Hello,
From my experience working in the utility scale solar design space, I recommend averaging meteorological data from multiple sources. This approach helps improve the reliability and accuracy of the resource assessment by minimizing the influence of anomalies, data gaps, or biases that may exist in individual datasets. Using averaged data provides a more representative long term climate profile for the site, leading to more robust energy yield estimates and better-informed design and financial decisions. Happy to share a tool that quickly does the computation.
