Journal
INTERNATIONAL JOURNAL OF TECHNOLOGY
Volume 10, Issue 6, Pages 1082-1092Publisher
UNIV INDONESIA, FAC ENGINEERING
DOI: 10.14716/ijtech.v10i6.3612
Keywords
Degradation; Indonesia; Performance; PV systems; Tropical climate
Categories
Funding
- Indonesia Endowment Fund for Education (LPDP)
- COST Action PEARL PV
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Despite being a tropical country with great potential for solar power, knowledge about the actual performance of photovoltaic (PV) systems in Indonesia remains limited. In this paper, using 5-minute resolution data from 2016 to 2018 obtained from a 1 MW Copper Indium Selenide (CIS) and a 5 kW crystalline silicon (c-Si) PV plant in West Java, we aim to answer the question of how a CIS PV plant performs and degrades in Indonesia's tropical climate and how it compares to a PV system that contains c-Si technology. The methodological approach used includes performance analyses of these PV systems according to IEC standard 61724 and an investigation of the degradation rate using NREL/RdTools. The following results were derived from the analyses: the total annual H-i was 1500 kWh/m(2) or around 4.2 kWh/m(2)/day. The daily-averaged performance ratio, PR, was 91.7 % +/- 4 % and 87.4 % +/- 7 % for the CIS system with string inverters and a central inverter, respectively. The mean PR of the CIS systems was 12 % higher than that of the c-Si system, which was 79.8 %. Concerning the final yield, Y-f, the CIS system with a mean Y-f of 3.85 kWh/kWp outperformed the c-Si system by 14 %. The CIS system degraded by 1.53 % per year, which is less than the c-Si system with a degradation rate (R-d) of 3.72 % per year. From these results, it can be concluded that, in this case, CIS technology performs better than c-Si in Indonesia's tropical climate. Uncertainties in the calculation and high values of R-d could be areas for further investigation.
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