Variation in Cost and Time in Small Hydropower
Projects in Nepal
Student: Narendra Ghimire
Supervisor: Prof. Dr. Hari Krishna Shrestha
Submitted Date:
February, 2024
Abstract
The construction industry is complex, and its effectiveness directly impacts profitability.
The performance of a construction project is measured by its ability to achieve completion
within predefined time and budget constraints while maintaining safety and quality
standards. Therefore, the overall goal of this study is to evaluate the factors influencing the
time and cost performance of small hydropower projects undertaken by the private sector in
Nepal. Additionally, it aims to analyze the impact of time and cost overruns and propose
strategies to mitigate such overruns effectively. This study employed a mixed-methods
research approach to explore the variability in project cost and time, significant factors
influencing project time and cost, and the impact of changes in cost and time on the financial
indicators of small hydropower projects. A questionnaire was developed based on insights
from the literature review and distributed to clients, consultants, and contractors. After
collecting primary and secondary data, including questionnaires and selected project
financial data, a systematic analysis was conducted. The Likert scale was employed to rank
factors, permitting respondents to express their agreement or disagreement, quantifying their
perceptions on a scale from one to five. Those responses have been converted into Relative
importance Indices (RII) for every aspect. Kendall's coefficient of concordance was applied
to evaluate the association among clients, consultants, and contractors. This non-parametric
measure of relationship determines the degree of association amongst multiple units of
rankings. The financial parameters of the projects were evaluated using information on
project costs gathered from respective project offices. Financial indicators which include
internal rate of return (IRR), net present value (NPV), benefit-cost Ratio (B/C ratio), and
return on equity (RoE) had been calculated using suitable formulas.
The study examines the factors of time and cost overruns are identified, including client-
related factors, contractor issues, consultant challenges, and external factors such as social
issues and geological conditions. Financial implications of overruns are evaluated through
case studies, highlighting diminished financial indicators. Remedial measures are proposed
to improve performance emphasizing clear communication, competent project
management, comprehensive planning, realistic scheduling, advanced cost estimation,
contractor prequalification, efficient procurement, financial planning, minimizing design
changes, and fostering positive community engagement. Recommendations include
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addressing design issues, ensuring timely payments, managing labor shortages, and
fostering positive community engagement to prevent unfeasible demand of local. Common
time management practices and areas for improvement are identified, alongside disparities
in cost management practices, indicating the need for integrated approaches and the
adoption of sophisticated cost control methods. Proposed measures include establishing
linked cost schedules, appointing dedicated cost engineers, and implementing software for
cost management to enhance project efficiency and financial outcomes.
Keywords
Small Hydropower Project, Time Overrun, Cost Overrun, Financial Indicator,
Remedial Measure.