Performance Evaluation of 780 Wp Rooftop Solar PV Power Backup System in Western Kenya
Journal of Energy Research and Reviews,
Aim: This study aimed to carry out performance analysis of a 780 Wp PV power backup system installed at a learning institution in Western.
Study design: To achieve this goal, site solar radiation received, ambient temperatures, dc current and dc voltages were measured in order to carry out performance evaluation of the PV backup system.
Place and Duration of Study: Department of electronics and electrical, Kaiboi Technical Training Institute in Nandi County, western Kenya was studied, between January 2020 and December 2020.
Methodology: Performance of any PV system depends on the operating conditions (solar radiation, ambient/module temperature, etc.) available at the site (geolocation dependent), installation (tilt and orientation) of the arrays, and finally proper system sizing (PV array, battery, BOS). In this paper, standard performance parameters reported in literature were utilized to evaluate the performance of the studied PV backup system. The array comprises of four panels interconnected in series/parallel to produce an output power rating of 780 W. A Pyranometer was mounted on the plane of array (POA) to measure solar radiation intercepted by the PV array where daily data were acquired at an interval of five minutes. I-v data were also recorded. Different literature was reviewed to identify the way to do this work.
Results: Based on the performance of the studied PV system, results obtained show that annual effective energy output is 3412.94 kWh, array efficiency range between 11.6% to 14.1% depending on amount of solar radiation, array yield of 4.88 kWh/kW, reference yield of 5.5 kWh/kW, annual average performance ratio of 76.3% and average array capture losses of 0.52 kWh/kW.
Conclusion: It found that the PV backup system need ~5-6 hours to operate at the array’s rated output power, and that the PV backup system performance is adequate with regard to yield and performance ratios.
- PV module
- I-V characteristics
- performance parameters
How to Cite
Simiyu J, Waita S, Musembi R, Ogacho A, Aduda B. Promotion of PV uptake and sector growth in Kenya through value added training in PV sizing, installation and maintenance. Energy Procedia. 2014;57:817-825.
Roche OM, Blanchard RE. Design of a solar energy centre for providing lighting and income-generating activities for off-grid rural communities in Kenya, Renewable Energy. 2018;118:685-694, ISSN 0960-1481, Available:https://doi.org/10.1016/j.renene.2017.11.053
ERCS, Energy Regulatory Commission Statistics Report; 2020. Available:https://www.epra.go.ke/ (Accessed on 14 March 2020).
Tigabu A, Kingiri A, Odongo F, Hanlin R, Andersen MH, Lema R. Capability development and collaboration for Kenya’s solar and wind technologies: Analysis of major energy policy frameworks-IREK Rep. 2017;2:1–13.
Congedo PM, Malvoni M, Mele M, De Giorgi MG. Performance measurements of monocrystalline silicon PV modules in south-eastern Italy. Energy Conversion and Management. 2013;68:1-10.
D'Orazio M, Di Perna C, Di Giuseppe E. Experimental operating cell temperature assessment of BIPV with different installation configurations on roofs under Mediterranean climate. Renewable Energy. 2014;68:378-396.
Pietruszko SM, Fetlinski B, Bialecki M. Analysis of the performance of grid connected photovoltaic system. Power and Energy Engineering Conference (APPEEC). 2012;12:1-4.
Al-Addous M, Dalala Z, Class CB, Alawneh F, Al-Taani H. Performance analysis of off-grid PV systems in the Jordan valley. Renewable Energy. 2017;113:930-941.
Bai A, Popp J, Balogh P, Gabnai Z, Plyi B, Farkas I, Pinter G, Zsiboracs H. Technical and economic effects of cooling of monocrystalline photovoltaic modules under Hungarian conditions, Renewable and Sustainable Energy Reviews. 2016;60: 1086-1099.
Zaoui F, Titaouine A, Becherif M, Emziane M, Aboubou A. A combined experimental and simulation study on the effects of irradiance and temperature on photovoltaic modules. Energy Procedia. 2015;75:373-380.
Fouad MM, Shihata LA, Morgan EI. An integrated review of factors influencing the performance of photovoltaic panels. Renew. Sustain. Energy Rev. 2017;80:1499–1511.
Chanchangi YN, Ghosh A, Sundaram S, Mallick TK. Dust and PV performance in Nigeria: A review. Renew. Sustain. Energy Rev. 2020;121:109704.
Bhuvaneswari C, Vijay B, Natarajan P. Estimation and performance analysis of a 15kW off-grid solar PV system. International Journal of Engineering & Technology. 2018;7(2):143-147.
Ezenugu IA, Umoren MA, Okpura I. Performance analysis of stand- alone photovoltaic (SAPV) system for category I health clinic in Orlu, Imo State, Nigeria. Mathematical and Software Engineering. 2016;2(1): 35-47.
Ayompe LM, Duffy A, McCormack SJ, Conlon M. Measured performance of a 1.72kW rooftop grid connected photovoltaic system in Ireland, Energy Conversion and Management. 2011;52(2):816–825.
Usman Z, Tah J, Abanda H, Nche C. A critical appraisal of PV- Systems’ performance. Buildings. 2020;10:192. Available:https://doi.org/10.3390/buildings10110192
Sidi CE, Ndiaye BE, Bah ML, Mbodji ME, Ndiaye A, Ndiaye PA. Performance analysis of the first large-scale (15MWp) grid-connected photovoltaic plant in Mauritania. Energy Conversion and Management. 2016:119(1):411–421.
Musanga LM, Barasa WH, Mageto M. The effect of irradiance and temperature on the performance of monocrystalline silicon solar module in Kakamega. Physical Science International Journal. 2018; 19(4):1-9.
Oloo F, Olang L, Strobl J. Spatial modelling of solar energy potential in Kenya. Int. J. Sustain. Energy Plan. Manag. 2015;6: 17–30.
Kiplagat JK, Wang RZ, Li TX. Renewable energy in Kenya: Resource potential and status of exploitation. Renewable and Sustainable Energy Reviews. 2011;15(6): 2960–2973.
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