Mastering Estimation and BOQ Preparation for 765 kV Substation Projects

When it comes to 765 kV substation projects, accurate estimation and BOQ preparation can make or break the success of the entire job. These ultra-high-voltage projects involve enormous quantities of civil works, steel structures, heavy equipment, and specialized electrical materials — all of which need precise planning and budgeting. For civil engineers, electrical engineers, and quantity surveyors, mastering this process is essential.

The estimation process begins during the design and planning stage. Engineers analyze single-line diagrams, general arrangement drawings, and equipment layouts to identify the scope of work. For civil estimation, this includes concrete foundations, control buildings, trenches, boundary walls, and internal roads. On the electrical side, it covers transformers, breakers, busbars, earthing systems, cable trays, and control panels. Each item is measured, quantified, and priced based on material, labor, and installation factors.

A well-prepared Bill of Quantities (BOQ) is more than just a list — it’s the project’s financial roadmap. It provides clarity to contractors, clients, and consultants, ensuring that all cost elements are accounted for and that there are no surprises during execution. BOQs also help in tendering, vendor evaluation, and progress billing, which are vital in large-scale Saudi projects.

However, preparing BOQs for 765 kV substations requires an understanding of high-voltage equipment standards, local market rates, and Saudi Electricity Company (SEC) specifications. That’s why BHADANIS 765 kV Substation Planning and Execution – From Concept to Commissioning Online Course for Saudi Arabia Professionals is the perfect learning path