Excess Energy from PV-Battery System Installations: A Case of Rural Health Center in Tigray, Ethiopia
PV-Battery systems are commonly sized based on the lowest solar radiation of the site of implementation. This implies that during days of high solar radiation excess energy is available. This study investigated the potential of excess energy for thermal storage from PV systems for a case of a rural...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-06-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/15/12/4355 |
| _version_ | 1827660592704389120 |
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| author | Mulu Bayray Kahsay Johan Lauwaert |
| author_facet | Mulu Bayray Kahsay Johan Lauwaert |
| author_sort | Mulu Bayray Kahsay |
| collection | DOAJ |
| description | PV-Battery systems are commonly sized based on the lowest solar radiation of the site of implementation. This implies that during days of high solar radiation excess energy is available. This study investigated the potential of excess energy for thermal storage from PV systems for a case of a rural health center. The system components of a typical PV installation in a rural health center in Tigray, Ethiopia, were considered. The electricity load profile of the health center and solar radiation data available from Mekelle city were used as inputs to a TRNSYS model. Analysis of excess energy in the system at hourly and ten-minute time intervals was conducted. The analysis results indicate that during the months from September to May excess energy was available that could be thermally stored and utilized. During these months, the excess peak power ranged from 737 to 841 W and daily average excess energy ranged from 2070 to 2959 Wh. In contrast, in the months from June to August, no excess energy was available due to low solar radiation. |
| first_indexed | 2024-03-09T23:53:50Z |
| format | Article |
| id | doaj.art-b42508781bdc42918aba9589d9a5de87 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T23:53:50Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-b42508781bdc42918aba9589d9a5de872023-11-23T16:29:48ZengMDPI AGEnergies1996-10732022-06-011512435510.3390/en15124355Excess Energy from PV-Battery System Installations: A Case of Rural Health Center in Tigray, EthiopiaMulu Bayray Kahsay0Johan Lauwaert1Department of Electronics and Information Systems, Gent University, 9052 Ghent, BelgiumDepartment of Electronics and Information Systems, Gent University, 9052 Ghent, BelgiumPV-Battery systems are commonly sized based on the lowest solar radiation of the site of implementation. This implies that during days of high solar radiation excess energy is available. This study investigated the potential of excess energy for thermal storage from PV systems for a case of a rural health center. The system components of a typical PV installation in a rural health center in Tigray, Ethiopia, were considered. The electricity load profile of the health center and solar radiation data available from Mekelle city were used as inputs to a TRNSYS model. Analysis of excess energy in the system at hourly and ten-minute time intervals was conducted. The analysis results indicate that during the months from September to May excess energy was available that could be thermally stored and utilized. During these months, the excess peak power ranged from 737 to 841 W and daily average excess energy ranged from 2070 to 2959 Wh. In contrast, in the months from June to August, no excess energy was available due to low solar radiation.https://www.mdpi.com/1996-1073/15/12/4355excess energythermal storagePV systemhealth centerrural electricity |
| spellingShingle | Mulu Bayray Kahsay Johan Lauwaert Excess Energy from PV-Battery System Installations: A Case of Rural Health Center in Tigray, Ethiopia Energies excess energy thermal storage PV system health center rural electricity |
| title | Excess Energy from PV-Battery System Installations: A Case of Rural Health Center in Tigray, Ethiopia |
| title_full | Excess Energy from PV-Battery System Installations: A Case of Rural Health Center in Tigray, Ethiopia |
| title_fullStr | Excess Energy from PV-Battery System Installations: A Case of Rural Health Center in Tigray, Ethiopia |
| title_full_unstemmed | Excess Energy from PV-Battery System Installations: A Case of Rural Health Center in Tigray, Ethiopia |
| title_short | Excess Energy from PV-Battery System Installations: A Case of Rural Health Center in Tigray, Ethiopia |
| title_sort | excess energy from pv battery system installations a case of rural health center in tigray ethiopia |
| topic | excess energy thermal storage PV system health center rural electricity |
| url | https://www.mdpi.com/1996-1073/15/12/4355 |
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