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Sustainable Energy Source for Water Pumping at Puttalam Salt Limited
University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering. Royal Institute of KTH, Sweden.
2014 (English)Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The cost of grid based electrical and diesel sea water pumping to salt fields is one of the major cost components out of the total production cost in Puttalam Salt Limited, situated in northern part of Sri Lanka. In order to explore ways and means to improve the energy efficiency and alternative resources to meet the energy requirement a feasibility study was conducted using power system simulation software, (HOMER) and also detailed technical, environmental and financial tools.


 This research study is conducted to evaluate the performances and applicability and propose the most suitable sustainable renewable energy source and methodology for water pumping to salt fields instead of currently utilized grid based and fossil fueled energy supply.


Preliminary results obtained by simulation software shows that direct wind mill pumping and solar PV water pumping was found to be unfeasible due to its limited pumping capacity and high investment cost. More over solar PV does not seems much feasible due to its high cost of energy (0.234 US $/kWh) compared to wind powered rivals in this type of applications.


Based on comparisons of the analysis it is seen that the wind/ grid combined configuration of 04 units of AOC15/50 model (50kW manufactured by AOC Renewable Energy - Canada) wind turbine units with 150kw inverter seems to be a logical supplement for water pumping energy requirement than using grid based electricity which costs 0.201 US $/ kWh. The solution in this research affords an attractive 60% annual average renewable fraction as well as an approximate 215.8 tCO2(eq) of annual Carbon Footprint saving. Also it assures a moderate Discounted Payback Period of 6 years and 5months with a 15% of Internal Rate of Return.   

Place, publisher, year, edition, pages
2014. , 80 p.
Keyword [en]
Sustainable Energy, Renewable Energy, Water Pumping, Wind Power, Solar Power
National Category
Energy Engineering
URN: urn:nbn:se:hig:diva-16682OAI: diva2:718309
Subject / course
Energy technology
Educational program
Energy engineering – master’s programme online (one year) (in eng)
Available from: 2014-05-21 Created: 2014-05-20 Last updated: 2014-05-21Bibliographically approved

Open Access in DiVA

Final Thesis Report(4079 kB)540 downloads
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File name FULLTEXT01.pdfFile size 4079 kBChecksum SHA-512
Type fulltextMimetype application/pdf

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Department of Building, Energy and Environmental Engineering
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