Researchers in Turkey have studied the impacts of topography-induced shading on floating PV on the Ayvalı hydroelectric energy plant and have recognized variations between the areas with the very best and lowest electrical energy manufacturing potential.
Turkish researchers have developed a novel method to deploy floating PV (FPV) programs on the Ayvalı hydroelectric energy plant (HPP) in Erzurum province, Turkey. The proposed technique considers the minimal water floor space and the topography-induced shading impact on the water at numerous ranges in a reservoir.
“This examine distinguishes itself from earlier analysis by contemplating horizontal and vertical variations on the dam floor, significantly contemplating the shading impact,” the scientists defined. “This examine emphasizes the significance of using appropriate places on water surfaces for FPV programs, much like marginal lands and rooftops, by means of the usage of distant sensing (RS) and geographic data system (GIS) strategies.”
To find out the shading impact on the reservoir, the group used RS and GIS to calculate month-to-month international horizontal irradiance (GHI) values on the water floor from 2017-21. Subsequent, the group produced new digital elevation mannequin (DEM) maps by overlapping water top adjustments with Superior Land Observing Satellite tv for pc (ALOS) PALSAR knowledge. After analyzing these maps, the researchers categorized pixels in areas on the floor as having annual electrical energy manufacturing potential that was very excessive, excessive, average, low, and really low.
“The outcomes revealed that 1083.45 GWh of electrical energy might be produced yearly by putting in FPV in very excessive and excessive potential areas,” the teachers stated. “Nevertheless, because the average, low, and really low areas symbolize solely 5.02% of the reservoir floor and there’s a 1.68-fold distinction in manufacturing potential between the very best and lowest areas because of topography-induced shading close to the shoreline, it was concluded that FPV set up wouldn’t be environment friendly in these areas.”
The researchers stated the findings underscore the significance of contemplating shading brought on by the topography alongside the shore of the reservoir.
The group decided the minimal reservoir floor space for the Ayvalı dam as 504.69 hectares by utilizing 60 Sentinel-2 satellite tv for pc photographs, machine studying algorithms on the Google Earth Engine (GEE) platform, assist vector machines (SVM), and the automated water extraction index (AWEI). It proposed that in reservoirs the place shaded areas continuously shift because of water top adjustments – reminiscent of dams – the shading needs to be taken into consideration and the minimal water floor space needs to be thought-about for the FPV set up.
They introduced their findings in “A novel method suggestion for assessing the impression of topographic shading on the estimation of the floating photovoltaic technical potential,” which was just lately printed in Vitality.
“Contemplating the variations in electrical energy era potential amongst areas, the set up of FPV programs needs to be averted in very low and low potential areas,” the group concluded. “This examine highlights the need of contemplating the shading impact on water surfaces and emphasizes the usefulness of RS and GIS strategies for this goal.”
This content material is protected by copyright and might not be reused. If you wish to cooperate with us and wish to reuse a few of our content material, please contact: editors@pv-magazine.com.
