This study presents the development, design and evaluation of the Competency-Based Training Electrical Wiring System (CBTEWS) trainer at Agusan Del Sur State College of Agriculture and Technology. Following the Analysis, Design, Development, Implementation, and Evaluation (ADDIE), model framework the research addressed the critical need for realistic electrical training environments that bridge the gap between classroom instruction and professional practice. Evaluation was conducted using the TEEPS framework (Technical, Economic, Environmental, Performance, and social criteria), revealing exceptional performance across all dimensions. Key findings include perfect median acceptability scores of 5 (“Very High Acceptability”) across technical, economic, environmental, and social criteria. The trainer demonstrated superior safety features with 100% adherence standards, achieving 85% skill acquisition rates, 80% knowledge retention after 10-20 days, 20% task completion time improvement, and 50% reduction in common wiring errors. Results revealed no significant differences across TEEPS dimensions (F=1.730483, p=0.196231>0.05), confirming uniform excellence rather than trade-offs between evaluation criteria. The competency-based framework requires 80 hours of specialized instructor training and incorporates a ₱11,000 material cost structure prioritizing essential safety equipment. The CBTEWS trainer represents a well-engineered educational solution that successfully balances technical excellence, economic viability, environmental responsibility, and social inclusivity. Its comprehensive acceptability and proven learning outcomes position it as a sustainable model for electrical education that can be replicated across diverse institutional contexts in the Philippines and beyond.