Assessment of Satellite-Derived Hourly Solar Weather Data in Java-Bali Island

Solar irradiation resource assessment for different weather data sources was used to find the correlation between modelled data and the measured data. The analysis encompasses 55 different locations scattered in Java Bali Island, Indonesia. Those locations were set as centroids to cluster the area within Java-Bali Island. The correlation between satellitederived data to the measured data was indicated by the deviation value. The deviation analysis was presented by using the Normalized Mean Bias Deviation (nMBD) and the Normalized Root Mean Square Deviation (nRMSD) for the the outlier, the nMBD value has a range between $\mathbf{- 15. 95 \%}$ to $\mathbf{34. 11 \%}$ for NREL, $-\mathbf{22. 55 \%}$ to $\mathbf{54. 25 \%}$ for NASA-SSE, and $\mathbf{13. 9 4 \%}$ to 39.07% for PVGIS-TMY. In addition, the nRMSD value has a range between $\mathbf{25. 01 \%}$ to 55.37% for NREL, 31.39% to $\mathbf{68. 51 \%}$ for NASA-SSE, and $\mathbf{26. 77 \%}$ to 55.72% for PVGISTMY.