This publication provides introductory technical guidance for electrical engineers and construction managers interested in distribution and utilization of electric power in buildings and related infrastructure. Here is what is discussed: 1. TRANSFORMERS, 2. SERVICE ENTRANCE AND DISTRIBUTION EQUIPMENT, 3. MOTORS AND MOTOR CONTROL CIRCUITS, 4 SURGE PROTECTIVE DEVICES, 5. METERING, 6. RACEWAY AND WIRING, 7. LIGHTING, 8. EMERGENCY GENERATORS, 9. AUTOMATIC TRANSFER EQUIPMENT, 10. STATIONARY BATTERIES AND BATTERY CHARGERS, 11. GROUNDING, BONDING, AND STATIC PROTECTION, 12. LIGHTNING PROTECTION SYSTEMS, 13. 400-HERTZ DISTRIBUTION SYSTEMS, 14. POWER QUALITY, 15. SYSTEMS FURNITURE, 16. ASHRAE COMPLIANCE.