Technical and economical prefeasibility study of a solar water heating (SWH) system in an apartment building in Cape Town

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Date

2015-04

Authors

Idowu, Olugbeminiyi
Ige, Toluwalope
Legenski, Nicole
Mustafa, Amin A.
Rojas-Solorzano, L.

Journal Title

Journal ISSN

Volume Title

Publisher

7th International Exergy, Energy and Environment Symposium, Valenciennes, France; 04/2015

Abstract

Solar power has significant potential to reduce reliance on conventional energy sources in South Africa. A prefeasibility study for a communal solar water heating system (SWHS) is performed for an apartment building in the Cape Town area. Energetic-economic modelling of the system is performed via the calculation of the solar fraction, and fundamental indicators of the financial analysis such as internal rate of return (IRR), net present value (NPV), and benefit-cost ratio. Results indicate that a SWHS with a solar fraction of 32% and a benefit-cost ratio of 3.05 is realizable. Additionally, sensitivity analysis of financial results with respect to incentive rebate amount and electricity escalation rate is performed

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Keywords

Research Subject Categories::TECHNOLOGY::Engineering mechanics, mechanical engineering, Solar Water Heaters, Cape Town, RETScreen, Prefeasibility, Glazed solar collectors, Unglazed solar colletors, Electricity saving

Citation

Idowu Olugbeminiyi, Ige Toluwalope, Legenski Nicole, Mustafa Amin A., Rojas-Solorzano L.; 2015; Technical and economical prefeasibility study of a solar water heating (SWH) system in an apartment building in Cape Town; http://nur.nu.edu.kz/handle/123456789/884