Estimating design effort for GE hydro projects

Authors:
Hamdi A. Bashir;Vince Thomson
Affiliations:
Department of Mechanical and Industrial Engineering, Sultan Qaboos University, P.O. Box 33, AI-Khod, Postal Code: 123 Muscat, Oman;Department of Mechanical Engineering, McGill University, 817 Sherbrooke Street West, Montreal, Que., Canada H3A 2K6
Venue:
Computers and Industrial Engineering - Special issue: Selected papers from the 27th international conference on computers & industrial engineering
Year:
2004

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Abstract

Effort estimation is an essential process in determining the final cost, as well as the duration of, a future design project. This paper discusses the construction of a parametric model done in collaboration with General Electric (GE) Hydro (GE Hydro is a world leader in the design and construction of generators and turbines for hydro-electric power generation), the purpose being to estimate the effort needed to create designs for hydro-electric generators. An analysis of the data showed that the developed model resulted in a mean relative error of 13% compared to original estimation errors by GE Hydro staff, which averaged 27%. GE has been using the estimation model for its projects since the beginning of the year 2000.