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2026, Vol: 15, Issue: 1
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Technical Note
Online Published: 31 Aug 2024
 


Economic Optimization of Grid-Connected Photovoltaic Solar Systems in Industrial Energy:: Case Study SULFO Ltd - Rwanda

Eustache Hakizimana, Honorine Umuhoza, Emmanuel Manishimwe, Venant Kayibanda.


Abstract
This research investigates the economic optimization of grid-connected photovoltaic (PV) solar systems through a case study at SULFO Industry, specifically its soap manufacturing department. It addresses the urgent need for sustainable energy solutions in industrial settings to cut greenhouse gas emissions and achieve financial savings, focusing on high energy consumption issues. The study aims to optimize energy usage, financial efficiency, and environmental sustainability by integrating solar PV technology. The cost-benefit analysis of the PV system evaluates initial costs, payback period, return on investment (ROI), levelized cost of energy (LCOE), and net present value (NPV). Findings reveal a payback period of approximately 10 years with an anticipated total profit of around $768,767 over 30 years. The system generates 502.2 MWh annually, reducing energy costs to 51,726,600 RWF from 120,519,000 RWF, and decreases CO2 emissions by 6,555.1 tons. These results support existing research on the economic and environmental benefits of solar PV systems, validating their effectiveness in reducing costs and emissions. The study confirms that solar PV systems are a viable and practical option for enhancing energy sustainability in industrial operations.

Key words: Solar Energy Technology, Energy Optimization, Environmental Impact Assessment.


 
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How to Cite this Article
Pubmed Style

Hakizimana E, Umuhoza H, Manishimwe E, Kayibanda V. Economic Optimization of Grid-Connected Photovoltaic Solar Systems in Industrial Energy:: Case Study SULFO Ltd - Rwanda. Sol. Energy Sustain. Dev.. 2024; 13(2): 204-229.

doi:10.51646/jsesd.v13i2.242

Web Style

Hakizimana E, Umuhoza H, Manishimwe E, Kayibanda V. Economic Optimization of Grid-Connected Photovoltaic Solar Systems in Industrial Energy:: Case Study SULFO Ltd - Rwanda. https://www.jsesd.org/?mno=302658306 [Access: November 12, 2026].

doi:10.51646/jsesd.v13i2.242

AMA (American Medical Association) Style

Hakizimana E, Umuhoza H, Manishimwe E, Kayibanda V. Economic Optimization of Grid-Connected Photovoltaic Solar Systems in Industrial Energy:: Case Study SULFO Ltd - Rwanda. Sol. Energy Sustain. Dev.. 2024; 13(2): 204-229.


doi:10.51646/jsesd.v13i2.242

Vancouver/ICMJE Style

Hakizimana E, Umuhoza H, Manishimwe E, Kayibanda V. Economic Optimization of Grid-Connected Photovoltaic Solar Systems in Industrial Energy:: Case Study SULFO Ltd - Rwanda. Sol. Energy Sustain. Dev.. (2024), [cited November 12, 2026]; 13(2): 204-229.


doi:10.51646/jsesd.v13i2.242

Harvard Style

Hakizimana, E., Umuhoza, . H., Manishimwe, . E. & Kayibanda, . V. (2024) Economic Optimization of Grid-Connected Photovoltaic Solar Systems in Industrial Energy:: Case Study SULFO Ltd - Rwanda. Sol. Energy Sustain. Dev., 13 (2), 204-229.


doi:10.51646/jsesd.v13i2.242

Turabian Style

Hakizimana, Eustache, Honorine Umuhoza, Emmanuel Manishimwe, and Venant Kayibanda. 2024. Economic Optimization of Grid-Connected Photovoltaic Solar Systems in Industrial Energy:: Case Study SULFO Ltd - Rwanda. Solar Energy and Sustainable Development, 13 (2), 204-229.


doi:10.51646/jsesd.v13i2.242

Chicago Style

Hakizimana, Eustache, Honorine Umuhoza, Emmanuel Manishimwe, and Venant Kayibanda. "Economic Optimization of Grid-Connected Photovoltaic Solar Systems in Industrial Energy:: Case Study SULFO Ltd - Rwanda." Solar Energy and Sustainable Development 13 (2024), 204-229.


doi:10.51646/jsesd.v13i2.242

MLA (The Modern Language Association) Style

Hakizimana, Eustache, Honorine Umuhoza, Emmanuel Manishimwe, and Venant Kayibanda. "Economic Optimization of Grid-Connected Photovoltaic Solar Systems in Industrial Energy:: Case Study SULFO Ltd - Rwanda." Solar Energy and Sustainable Development 13.2 (2024), 204-229. Print.


doi:10.51646/jsesd.v13i2.242

APA (American Psychological Association) Style

Hakizimana, E., Umuhoza, . H., Manishimwe, . E. & Kayibanda, . V. (2024) Economic Optimization of Grid-Connected Photovoltaic Solar Systems in Industrial Energy:: Case Study SULFO Ltd - Rwanda. Solar Energy and Sustainable Development, 13 (2), 204-229.


doi:10.51646/jsesd.v13i2.242

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