📄 Summary: Solar PV Installation Helper – Facilitator Guide

Overview

Module-wise Summary

Module 1 - Introduction to Solar PV Installer

• Unit 1.1: Introduction to the training programme - covers discipline, code of conduct, QP (Qualification Pack), NOS (National Occupational Standards), and what SSC means.
• Unit 1.2: Overview of the Green Jobs Sector - different job roles, employment opportunities, India's solar energy policy, types of solar PV systems, advantages of solar energy. India aims for over 3 million new jobs in renewable energy by 2030 (CEEW-NRDC & SCGJ estimate).
• Unit 1.3: Solar PV Project Helper Job Role - responsibilities include assisting in site survey, erection and commissioning, and maintenance for both rooftop and ground-mounted plants (capacity 1 kW to MW scale). Work sites include schools, hospitals, rooftops, open fields, water bodies.

Module 2 - Assist in Installation and Maintenance of Solar PV Power Plant (SGJ/N0130)

• Unit 2.1: Identification of Tools and Components - civil tools (crowbar, spade), drilling machine, marking tools, measuring tape, safety gadgets; basic solar PV system components; types of photovoltaic cells; solar thermal vs. solar electrical applications.
• Unit 2.2: Assist in a Solar PV Power Plant Site - inspecting rooftop/field before installation; civil work and fitting solar structure; pillar mount installation (rooftop and ground); connecting solar PV panels to Array Junction Box (AJB); cable routing to inverter. Tilt angle determined using GPS and latitude (using solar tilt app). Materials: gravel, sand, cement, anchor bolts, poles/pillars.
• Unit 2.3: Completing the Work - checklist of tools/equipment; unused consumable management; documentation; test report; handover of plant to customer.

Module 3 - Assist in Installation and Maintenance of Off-grid Solar System (SGJ/N0131)

• Unit 3.1: Basics of Electrical and Solar Energy - electric charge, voltage, current; conductors vs. insulators; formula: P = V × I (Watts); measurement via power meter and energy meter.
• Unit 3.2: Tools and Components of Off-grid Solar Systems - working principle of solar PV cell; types of solar modules; lead acid battery construction and working; battery characteristics; types of charge controllers (PWM, MPPT); inverter and pump controller functions; protection features.
• Unit 3.3: Solar Water Pump System - DC motor pump sets (brushed/brushless BLDC); AC induction motor pump with inverter; Performance Specifications; pit preparation for mounting structure; electrical ground point; routine maintenance (module, connections, wiring, control).
• Unit 3.4: Solar Street Light System - basic components: SPV module, battery, charge controller, LED luminaire; civil work for pole installation; automatic switch and brightness control; maintenance schedule (wiring, fuses, indicator lamps, switches).
• Unit 3.5: Small Solar Home System - overview and components; charge controllers for small systems; bulbs and fans used; civil and electrical connections; maintenance.

Module 4 - Maintain Personal Health and Safety at Project Site (SGJ/N0106)

• Unit 4.1: Safe Work Procedures - workplace safety policies; identifying hazard contact persons; first aid location and administration; types of hazards (personal, electrical, non-electrical, environmental).
• Unit 4.2: Personal Protective Equipment (PPE) - helmet (head protection), safety shoes (anti-slip), goggles (wiring work), hand/arm protection (fire spark), no rings while working, safety jacket (visibility), body harness (height work).
• Unit 4.3: Identify Safety Hazards - electrical hazards (short circuit, voltage fluctuation, battery/inverter/AC hazards); environmental hazards (pollution, gas leak); operating fire extinguisher.
• Unit 4.4: Working at Heights - fall protection devices; perimeter protection; body harness use; phobia of heights: must inform supervisor; proper inspection of safety equipment before use; common workplace safety signs.

✅ MCQ - Important Questions

Module 1: Introduction

1. India's solar energy target by 2030 is:
   • a) 100 GW b) 175 GW c) 300 GW ✅ d) 450 GW
2. The full form of NOS is:
   • a) National Output Standard b) National Occupational Standards ✅ c) National Operations System d) None
3. How many new jobs are estimated to be created in India's renewable energy sector by 2030?
   • a) 1 Million b) 2 Million c) 3 Million ✅ d) 5 Million
4. NSQF Level for Solar PV Installation Helper is:
   • a) Level 1 b) Level 2 ✅ c) Level 3 d) Level 4
5. The minimum education qualification for a Suryamitra is:
   • a) Class 8th b) Class 10th + ITI/Diploma ✅ c) Class 12th d) Graduation

Module 2: Solar PV Power Plant Installation

1. The tilt angle of a solar panel is determined based on:
   • a) Wind speed b) Local latitude ✅ c) Temperature d) Inverter capacity
2. Which tool is used to drill holes on a rooftop for solar installation?
   • a) Crowbar b) Spade c) Drilling machine ✅ d) Pliers
3. AJB in solar installations stands for:
   • a) Automated Junction Block b) Array Junction Box ✅ c) Ampere Junction Box d) Alternate Junction Board
4. Which material is NOT required for foundation work of a solar structure?
   • a) Cement b) Gravel c) Anchor bolts d) LED lamp ✅
5. At the time of plant handover, what document is prepared?
   • a) FIR Report b) Test Report ✅ c) Sales Invoice only d) No document needed

Module 3: Off-grid Solar Systems

1. The formula for electrical power is:
   • a) P = V/I b) P = I²/V c) P = V × I ✅ d) P = V + I
2. BLDC stands for:
   • a) Battery Level DC b) Brushless DC ✅ c) Bidirectional Linear DC d) None
3. Which type of battery is commonly used in off-grid solar systems?
   • a) Nickel-cadmium b) Lithium polymer c) Lead acid ✅ d) Alkaline
4. A solar charge controller is used to:
   • a) Convert AC to DC b) Regulate battery charging from solar panel ✅ c) Measure tilt angle d) Connect panels in series
5. Which motor is used with a solar water pump that does NOT require brushes?
   • a) AC induction motor b) DC brushed motor c) BLDC motor ✅ d) Stepper motor
6. Solar street lights use which type of lighting?
   • a) CFL b) Incandescent c) Halogen d) LED ✅
7. Which component controls automatic switching in solar street lights?
   • a) Inverter b) Battery c) Charge controller ✅ d) Fuse

Module 4: Health and Safety

1. What PPE is worn to prevent slipping while working at a solar site?
   • a) Helmet b) Goggles c) Safety shoes ✅ d) Body harness
2. A body harness is used when:
   • a) Handling batteries b) Working at heights ✅ c) Connecting panels d) Using a drill
3. Which type of hazard is caused by short circuits or voltage fluctuations?
   • a) Environmental hazard b) Personal hazard c) Electrical hazard ✅ d) Non-electrical hazard
4. What should a technician do if they have a phobia of heights?
   • a) Overcome it silently b) Avoid and inform the supervisor ✅ c) Use double harness d) Skip work
5. Goggles are worn during which specific task?
   • a) Civil work b) Foundation digging c) Wiring work ✅ d) Documentation
6. Safety jacket is worn mainly to:
   • a) Protect from rain b) Remain visible from a distance ✅ c) Prevent electric shock d) Support the back

🎤 Viva (Oral) Based Questions

Module 1 - Green Jobs & Job Role

1. What is the role of the Skill Council for Green Jobs (SCGJ)?
   • SCGJ designs and implements skilling programmes for the renewable energy sector under the National Occupational Standards framework to prepare technically trained workforce.
2. What types of locations can a Solar PV Project Helper work at?
   • Rooftops of schools, hospitals, government offices, railway stations, apartments; open grounds, fields, water bodies, and different terrains.
3. What is the difference between rooftop solar and ground-mounted solar?
   • Rooftop solar is installed on buildings (target: 40 GW); ground-mounted is installed on open land or fields (target: 60 GW). Both contribute to India's 100 GW solar target (now revised to 300 GW by 2030).

Module 2 - Installation

1. How do you determine the tilt angle for solar panel installation?
   • Using a mobile phone with GPS (location ON), search the latitude of the location in Google. Then feed the latitude into a Solar Tilt App to find the optimal tilt angle for all four seasons.
2. What is an Array Junction Box (AJB) and why is it used?
   • AJB is a combiner box where output from multiple solar panels (strings) are connected together before sending power to the inverter. It helps manage wiring and provides protection.
3. What checks must be done before starting installation at a site?
   • Inspect the rooftop/field structure, draw a layout of the building and roof, verify tool checklist, assess shading, ensure structural strength for mounting, confirm all safety equipment is in place.
4. What documents are prepared during plant handover?
   • A test report is generated which notes all key parameters measured during commissioning, and it is signed during formal handover to the customer.

Module 3 - Off-grid Systems

1. Explain the working principle of a lead acid battery.
   • A lead acid battery stores electrical energy as chemical energy using lead plates submerged in dilute sulfuric acid (electrolyte). During discharge, chemical energy converts back to electrical energy. It is recharged by passing current in the reverse direction.
2. What is the difference between a PWM and MPPT charge controller?
   • PWM (Pulse Width Modulation) is simpler and cheaper; it reduces current as battery charges. MPPT (Maximum Power Point Tracking) is more efficient; it adjusts the voltage/current to extract maximum power from the solar panel regardless of battery state.
3. What are the two types of motors used in solar water pump systems?
   • DC motor pump sets: brushed and brushless (BLDC); and AC induction motor pump sets paired with a suitable inverter.
4. What maintenance is required for a solar water pump system?
   • Module maintenance (cleaning panels), checking electrical connections, inspecting wiring and control panel, routine checks of pump operation and water flow.
5. What are the basic components of a solar street light system?
   • SPV (solar photovoltaic) module, rechargeable battery, charge controller, LED luminaire (lamp), and pole/mounting structure with automatic light sensor/timer.

Module 4 - Safety

1. Name and explain four types of hazards at a solar project site.
   • Personal safety hazards: caused by human negligence (e.g., not wearing PPE). Electrical hazards: short circuits, voltage fluctuation, battery/inverter faults. Non-electrical hazards: falling objects, slipping. Environmental hazards: pollution, gas leaks, extreme weather.
2. What PPE is mandatory when working at heights, and why?
   • Body harness: prevents falls. Helmet: protects head from falling objects. Safety shoes: prevents slipping. Safety jacket: keeps worker visible. All must be inspected before use.
3. Why should rings NOT be worn while doing electrical work?
   • Metal rings are conductive and can cause electrical shock or get caught in equipment, leading to serious injury.
4. What procedure should be followed when using a fire extinguisher?
   • Remove the pin, aim the nozzle at the base of the fire, squeeze the handle, and sweep from side to side. Maintain safe distance and ensure your own safety while operating it.
5. What safety signs are commonly used at a solar installation site?
   • Warning signs (yellow), mandatory signs (blue, e.g., wear PPE), prohibition signs (red, e.g., no smoking), and emergency information signs (green, e.g., first aid). Correct signs must be used to avoid confusion or accidents.

Tip for exam prep: Focus especially on the power formula (P = V × I), tilt angle determination, types of charge controllers (PWM vs MPPT), types of PV systems (on-grid vs off-grid), PPE components and their purpose, and India's solar targets (100 GW / 300 GW / 450 GW) - these are the most frequently tested concepts in both MCQ and viva formats for this qualification pack.