Dataset of "Comparison of 3D and GIS approach for estimation rooftop solar potential in urban areas"

Estimating rooftop solar power potential and PV power potential is inlast two decades one of the most important topics in the field of decarbonisationand sustainable energy. In terms of calculation tools, 3D softwares are usuallymore computationally and manually demanding compared to GIS tools, especiallyin the scale of urban blocks, districts or entire cities. On the other hand, lowerdemands of GIS tools go hand in hand with possibly lower accuracy. Therefore, itcan be beneficial to calibrate the GIS model using real measured data or trustedresults of 3D software and then use it for the calculation of larger urban areas. Inthis paper the GIS software was calibrated using long-term meteorological dataand PVGIS data on horizontal plane. Next it was compared with PVGIS and 3Dmodel on a single tilted plane, with a fair agreement. Finally, the GIS and 3Dsoftware were compared using sums of total annual incident solar energy on fiveselected roof segments within real urban area in the city centre of Prague. Despiteseveral issues to be solved the difference in the total solar energy received by fiveroofs was at maximum ±14 %.