New Revised NERDC JSS 1 Solar PV Installation & Maintenance Scheme of Work
Week 1: Solar Photovoltaics (PV) System
1. Content: This week covers the meaning of Solar Photovoltaics (PV), types of Solar Photovoltaic Modules, and how Solar PV systems generate electricity.
2. Performance Objectives: Students should be able to define Solar Photovoltaics, identify types of Solar Photovoltaic Modules, and explain how a Solar Photovoltaic system generates electricity.
3. Learning Activities:
i. Teacher Activities: The teacher guides group discussions on the meaning of Solar Photovoltaics, plays short videos on types of modules and facilitates class discussions, demonstrates electricity generation using a model.
ii. Learning Activities: The learners discuss in groups the meaning of the Solar Photovoltaics system, watch short videos on types of Solar Photovoltaics Modules and participate in class discussion on them, demonstrate how a Solar Photovoltaic system generates electricity.
4. Teaching and Learning Resources: Internet enabled digital technological tools are required for research and video presentations. Sample or model of Solar PV system components including solar panels, inverters, AC and DC converters, energy storage battery bank, household appliances, network meters, energy distributors, charge controller, solar cables and accessories.
Week 2-3: Electrical Appliances Power Load/Loads Sizing
1. Content: The content covers the meaning of electrical loads, characteristics of types of electrical loads, meaning of Alternating Current (AC) and Direct Current (DC) Power, difference between the two forms of power (AC and DC), AC and DC Loads, and Load Sizing.
2. Performance Objectives: Students should be able to explain electrical loads, state the characteristics of types of electrical loads, explain the meaning of AC and DC power, differentiate between AC and DC Power, explain AC and DC loads, and identify the categories of load based on the type and the function of the appliance.
3. Learning Activities:
i. Teacher Activities: The teacher facilitates group discussions on electrical loads and characteristics, shows short videos on AC/DC power, guides internet searches for differences, demonstrates load categorization using name plates, oversees practical activities on load sizing.
ii. Learning Activities: The learners discuss in groups the meaning of electrical loads and the characteristics of the types of electric loads, watch short videos on the meaning of AC and DC power, search the internet for the difference between AC and DC power, watch short videos on what constitutes AC and DC loads,
Participate in class activity to use the name plates, function of the appliance or the power source (AC/DC) to identify their categories, like inductive (e.g. AC fan, AC freezer, etc), capacitive (capacitor bank, LED bulbs with capacitive drivers, etc.) or resistive load (AC water heater, pressing iron, etc.).
4. Teaching and Learning Resources: Internet enabled digital technological tools for online research, sample of AC and DC power outlet, digital DC clamp multimeter, electric conduits and fittings, electrical wires and cables, circuit breakers, electrical connectors, electrical boxes, lugs, motor control, name plates of different appliances, and calculators.
Week 4: Electrical Safety Precautions
1. Content: This week addresses the meaning of electrical safety, safety precautions in electrical works, electrical works protective/safety gears, electrocution and first aid.
2. Performance Objectives: Students should be able to explain the meaning of electric safety, describe electrocution, list the causes of electrocution, list the items contained in the electrocution first aid box, identify electrical works protective/safety gears, and explain safety precautions to observe in electrical work.
3. Learning Activities:
i. Teacher Activities: The teacher leads group brainstorming on electric safety and electrocution, guides internet searches for causes and first aid items, facilitates creation of posters/charts on safety gears, plays short videos on safety precautions and discusses.
ii. Learning Activities: The learners brainstorm in group to discuss the meaning of electric safety and electrocution, search the internet for information on the causes of electrocution and items found in electrocution first aid box, create a postal/charts on the list of electrical works protective/safety gears, watch a short video on safety precautions to observe in electrical work.
4. Teaching and Learning Resources: Internet enabled digital technological tools, sample of AC and DC power outlet, electrical wires, safety/protective gears used in electrical works, electrocution first aid box, short videos on causes of electrocution, items found in electrocution first aid box, and safety precaution to observe in electrical works.
Week 5-6: Safety Precautions in Handling Solar PV System Materials
1. Content: The focus is on observing safety precautions including wearing PPE, handling solar panels, charge controllers, batteries and inverters.
2. Performance Objectives: Students should be able to wear the necessary PPE when working with solar panels, charge controllers, batteries and inverters, and observe the required safety precautionary measures while handling solar panels, charge controllers, batteries and inverters.
3. Learning Activities:
i. Teacher Activities: The teacher demonstrates proper PPE usage and safe handling techniques, guides practical sessions on handling components in various scenarios, oversees group practices to ensure safety compliance.
ii. Learning Activities: The learners put on the PPE required for handling solar panels, charge controllers, batteries and inverters, demonstrate the best practice ways of handling solar panels, charge controllers, batteries and inverters in different situations to prevent injury to the person, others or damage to materials, equipment and the environment.
4. Teaching and Learning Resources: Personal protective equipment (PPE) for electrical work, solar panels of different sizes, charge controllers, batteries (various types), and inverters.
Week 7: Mid-Term Break
The mid-term break provides time for students to rest. Teachers should conduct a mid-term test covering topics from Week 1 to Week 6 before the break begins.
Week 8: Inverters
1. Content: This week covers the meaning of inverters, function of inverters, and ratings of inverters.
2. Performance Objectives: Students should be able to describe inverters, list the functions of inverter, and read inverter power rating from the inverter name plate.
3. Learning Activities:
i. Teacher Activities: The teacher facilitates group brainstorming and experience sharing on inverters, guides internet searches for functions, plays short videos on reading ratings and discusses.
ii. Learning Activities: The learners brainstorm in groups to describe inverters and share their experiences about it, search the internet for the function of inverters in a solar PV system, watch short videos on how to locate and read inverter power ratings from the inverter name plate.
4. Teaching and Learning Resources: Sample of different inverters showing various capacities and types, internet enabled digital devices for research.
Week 9-10: Solar Panels
1. Content: The content includes the meaning of solar panel, types of solar panels, and functions of solar panel.
2. Performance Objectives: Students should be able to discuss the meaning of solar panel, identify the types of solar panels, and explain the functions of solar panel.
3. Learning Activities:
i. Teacher Activities: The teacher leads group brainstorming on solar panel meaning, provides charts for identifying types and facilitates discussions, guides internet searches for functions.
ii. Learning Activities: The learners brainstorm in groups on the meaning of solar panel, use charts to identify and discuss the types of solar panels in groups, search the internet for the functions of solar panels.
4. Teaching and Learning Resources: Solar panels of different types (monocrystalline, polycrystalline, thin-film), digital devices with internet access, and charts showing solar panel classifications.
Week 11: Revision
This week is dedicated to revising all topics covered from Week 1 to Week 10. Teachers should prepare students for the upcoming examination by reviewing key concepts, conducting practice exercises, and addressing areas where students need additional support.
Week 12: Examination
The first term examination begins this week. The examination should cover all topics taught during the term, with emphasis on both theoretical knowledge and practical understanding of solar PV systems and safety procedures.
Week 13: Examination, Marking & Vacation
The examination concludes during this week. Teachers complete marking and record keeping. Once all academic activities are finished, students proceed on vacation.