Large-Scale Lighting Modernization Program | Specification Review, Illuminance Levels, and Performance
- Location
- Riyadh
- Period
- 2026
- Status
- In progress
- Role
- Technical review and approval: specifications, illuminance levels, color temperature, and quality assurance
Overview
Led the technical review of a campus-wide lighting modernization program covering more than 1,000,000 lighting units: defining luminaire type and color temperature, reviewing specifications and illuminance levels for each space type, calculating expected savings, sequencing execution, and monitoring quality with field verification before approval.
At a scale exceeding one million lighting units, the decision is not the choice of technology — LED technology is settled — but the technical review: which specifications and color temperatures to approve, which illuminance levels to require for each space type, in what order the phases are executed, and how quality is controlled before deviation propagates across the entire scope.
At a scale exceeding one million lighting units, the challenge is not the technology — LED technology is settled — but the technical review of a program this size: which specification and color temperature to approve, which illuminance level to require for each space, and in what order it is executed.
Approval before supply
Every lighting unit entering the program undergoes technical review and engineering approval: verifying specification compliance, confirming the unit’s suitability for the space type, and requiring the target illuminance level as an acceptance criterion rather than an indicative goal.
Sequencing is the decision
The unit that operates the longest hours yields the highest savings when modernized first. Building the sequence on baseline and operating-hours analysis, rather than on ease of access, is what determines the program’s actual return — and field verification of illuminance levels after installation is what ensures the savings were not achieved at the expense of lighting quality.
Responsibility
My role
- Technical review of proposals and specifications and approval of luminaires before supply.
- Specifying the required illuminance levels for each space type and adopting them as an acceptance criterion.
- Building the execution sequence on operating-hours and expected-savings analysis rather than on ease of access.
- Engineering supervision of the modernization work and field verification of compliance.
- Quality assurance and resolving deviations before moving to the next phase.
- Integrating outputs into the operation and maintenance cycle and monitoring post-modernization performance.
Execution
Project phases
01
Inventory and technical planning
Inventorying the existing lighting units and classifying them by type, location, and operating hours; analyzing the baseline; and building an execution sequence based on expected savings rather than ease of access.
Role: Leading the inventory methodology and approving execution priorities.
Outcome: An execution plan ordered by highest expected savings for each phase.
02
Execution and quality assurance
Engineering supervision of the modernization work, technical review of the supplied units, and field verification of the resulting illuminance levels in each space type before approving the phase.
Role: Engineering supervision, quality assurance, and field verification.
Outcome: Illuminance levels compliant with requirements before approving each phase.
Handling
Challenges & actions
Each challenge is linked directly to the action taken and its operational impact.
Challenge
Uneven illuminance levels after modernization in some space types.
Action
Reviewing the distribution and specifications of the units and correcting them before moving to the next locations.
Impact
Preventing the deviation from recurring across the entire program scope.
Challenge
A scope exceeding one million units, whose quality is difficult to control through random inspection.
Action
Adopting an inspection and acceptance methodology for each phase before closing it.
Impact
A unified acceptance reference instead of field judgment.
Impact
Results
- Lighting unit
- +1,000,000
Summary
Lessons learned
01
At scale, sequencing execution by operating hours yields higher savings than increasing the number of units replaced.
02
Quality control must precede expansion, not follow it.
03
The approved specification and the required illuminance level are what protect the program from quality decline under the pressure of volume.
