Black Belt
Integrated commercial assessment, verification, troubleshooting and technical judgment — capped by the warehouse capstone and oral defense.
Sign in to start exams, submit labs and track your progress — or enroll free.
Warehouse capstone and hiring interview
Fictional warehouse: 480 V three-phase, 25,000 kWh/month, measured peak 120 kW at 7 pm, ten-year-old roof, leased premises, customer requests whole-site Powerwall backup for 12 hours. No actual tariff, interval series, roof report or critical-load inventory provided. Submit a discovery report, missing-data register, conceptual alternatives, one justified calculation, source register, risk/assumption sheet and a customer explanation. Present a 10-minute consultation followed by 10-minute source defense.
Ready to grade for your Black Belt?
Threshold 90% · every safety-critical item must be correct · includes reviewer sign-off · three attempts per day.
Belt certificates are issued by an administrator after the server verifies every requirement — lessons, exam, written task, lab and reviewer approval.