Solar PV Systems
Size, wire, protect, ground, commission and troubleshoot a solar system to PEC/NEC 690, and prove it on the bench: three graded exams aligned to the NC-II PV Systems Installation units.
Panels, controllers, batteries, inverters and protection, sized for Cebu sun.
Before you start: Basic electrical safety
Start the course in the labFree. Sign in only if you want your progress on every device.
Module 1: 1 · PV basics
Extra practice:
Module 2: 2 · The IV and PV curves
Module 3: 3 · Irradiance and temperature
Module 4: 4 · Array configuration and the string window
Extra practice:
Module 5: 5 · Shading, bypass and blocking diodes
Module 6: 6 · Charge controllers: PWM and MPPT
Extra practice:
Module 7: 7 · Batteries and charging
Extra practice:
- Li-ion CC/CV charger from an LM317
- Cell protection: DW01 + 8205A
- 100 Ah 12 V LiFePO4 battery (4S17P, 32700 cells) with charger
- 200 Ah power station on a 12.8 V LiFePO4 battery: 2 × 12 V, 3 × USB, mains charger
Module 8: 8 · Inverters and topologies
- Grid-tie solar in a brownout: why the lights go out even at noon
- Why a 1.5 HP non-inverter aircon trips a 3 kW inverter at start-up
Extra practice:
Module 9: 9 · Wiring, fuses and voltage drop
Extra practice:
- Inrush limiting with an NTC
- Reverse-polarity protection with a P-MOSFET
- Aircon branch circuit: 1.5 HP on 3.5 mm² and a 20 A breaker, on its own
Module 10: 10 · Grounding, bonding and surge protection
Extra practice:
Module 11: 11 · System sizing
- Piso Wi-Fi on solar: how big a panel and battery for a router and coin box
- Sari-sari store freezer through a brownout: battery, inverter and hours
Extra practice:
Module 12: 12 · Commissioning and troubleshooting
Extra practice:
Module 13: 13 · Economics
Module 14: 14 · Code and safety
Extra practice: