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Google Earth Engine for the Detection of Soiling on Photovoltaic Solar Panels in Arid Environments
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| Title: | Google Earth Engine for the Detection of Soiling on Photovoltaic Solar Panels in Arid Environments |
| Authors: | Supe, Hitesh Browse this author | | Avtar, Ram Browse this author →KAKEN DB | | Singh, Deepak Browse this author | | Gupta, Ankita Browse this author | | Yunus, Ali P. Browse this author | | Dou, Jie Browse this author | | Ravankar, Ankit A. Browse this author | | Mohan, Geetha Browse this author →KAKEN DB | | Chapagain, Saroj Kumar Browse this author | | Sharma, Vivek Browse this author | | Singh, Chander Kumar Browse this author | | Tutubalina, Olga Browse this author | | Kharrazi, Ali Browse this author |
| Keywords: | land surface temperature | | normalized differential sand index | | soiling of solar panels |
| Issue Date: | May-2020 |
| Publisher: | MDPI |
| Journal Title: | Remote Sensing |
| Volume: | 12 |
| Issue: | 9 |
| Start Page: | 1466 |
| Publisher DOI: | 10.3390/rs12091466 |
| Abstract: | The soiling of solar panels from dry deposition affects the overall efficiency of power output from solar power plants. This study focuses on the detection and monitoring of sand deposition (wind-blown dust) on photovoltaic (PV) solar panels in arid regions using multitemporal remote sensing data. The study area is located in Bhadla solar park of Rajasthan, India which receives numerous sandstorms every year, carried by westerly and north-westerly winds. This study aims to use Google Earth Engine (GEE) in monitoring the soiling phenomenon on PV panels. Optical imageries archived in the GEE platform were processed for the generation of various sand indices such as the normalized differential sand index (NDSI), the ratio normalized differential soil index (RNDSI), and the dry bare soil index (DBSI). Land surface temperature (LST) derived from Landsat 8 thermal bands were also used to correlate with sand indices and to observe the pattern of sand accumulation in the target region. Additionally, high-resolution PlanetScope images were used to quantitatively validate the sand indices. Our study suggests that the use of freely available satellite data with semiautomated processing on GEE can be a useful alternative to manual methods. The developed method can provide near real-time monitoring of soiling on PV panels cost-effectively. This study concludes that the DBSI method has a comparatively higher potential (89.6% Accuracy, 0.77 Kappa) in the detection of sand deposition on PV panels as compared to other indices. The findings of this study can be useful to solar energy companies in the development of an operational plan for the cleaning of PV panels regularly. |
| Rights: | http://creativecommons.org/licenses/by/4.0/ |
| Type: | article |
| URI: | http://hdl.handle.net/2115/79143 |
| Appears in Collections: | 環境科学院・地球環境科学研究院 (Graduate School of Environmental Science / Faculty of Environmental Earth Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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