New Revised NERDC JSS 1 Solar PV Installation & Maintenance Scheme of Work
Week 1-2: Batteries Bank Storage
1. Content: This section covers the meaning of solar batteries, function of battery in Solar PV System, and types of solar batteries including deep cycle, shallow cycle, lead-acid, and lithium ion.
2. Performance Objectives: Students should be able to describe solar batteries, list the types of solar batteries, and explain the functions of battery in solar PV system.
3. Learning Activities:
i. Teacher Activities: The teacher facilitates group discussions on solar batteries appearance and experiences, guides internet searches for types and differences, plays short videos on functions and leads class discussions.
ii. Learning Activities: The learners discuss in groups what solar batteries look like and share their experiences about the solar PV system, search the internet for types of solar batteries and their differences, and create an information card on the types, watch short videos on the function of batteries in Solar PV systems and participate in class discussion on them.
4. Teaching and Learning Resources: Samples of batteries including deep cycle, shallow cycle, lead-acid, and lithium ion batteries, short video on the functions of the battery in the solar PV system, internet enabled devices.
Week 3-4: System Sizing (Battery)
1. Content: The content knowledge includes meaning of Days of Autonomy (DoA), meaning of Depth of Discharge (DoD), and determination of correct battery size based on DoD. The skill component focuses on correctly sizing solar batteries.
2. Performance Objectives: Students should be able to explain meaning of Days of Autonomy (DoA), use the battery depth of discharge (DoD) to determine the corrected battery size, and use system Days of Autonomy (DoA) to determine the total battery bank capacity.
3. Learning Activities:
i. Teacher Activities: The teacher leads group brainstorming on DoA and DoD meanings, demonstrates battery safety conditions (e.g., DoD and temperature), guides calculations for required DoA in battery sizing.
ii. Learning Activities: The learners brainstorm in group to discuss the meaning of Days of Autonomy (DoA) and Depth of Discharge (DoD), observe the battery safety conditions for longer life span e.g. DoD and the Temperature, determine the required days of autonomy (DoA) of the system and how to apply it in battery sizing.
4. Teaching and Learning Resources: Samples of appliances with their power ratings, calculator for sizing calculations, load sizing worksheet, and sample of deep-cycle battery.
Week 5-6: System Sizing (Inverter)
1. Content: The content knowledge covers types of inverters and inverter safety factor for sizing.
2. Performance Objectives: Students should be able to explain the function and types of inverters, use the inverter safety factor to determine the corrected inverter size, determine the size of solar modules needed for the system (See Load Sizing Worksheet), and determine the correct solar module capacity considering the locations Peak Sunshine Hours (PSH).
3. Learning Activities:
i. Teacher Activities: The teacher facilitates group discussions on inverter functions, demonstrates identification of inverter categories by size/weight, guides calculations using load sizing worksheet and safety standards, leads comparisons of high/low PSH scenarios.
ii. Learning Activities: The learners participate in group discussion on the function of an inverter, observe the physical size and weight of inverters to identify different categories of inverters based on output waveform (pure sine wave and modified sine wave), topology (transformer and non-transformer),
hybrid and non-hybrid, grid-tied, grid-connected and off-grid inverters, use the total power of all appliances obtained from the Load sizing worksheet to determine the required size of inverter, follow the safety standard in scaling up the inverter sizes,
compare a hypothetical scenario of a condition of a location with high peak sunshine hours and that of a low peak sunshine hours determine the correct solar module suitable for different location.
4. Teaching and Learning Resources: Samples of appliances with their power ratings, calculator, load sizing worksheet, sample of inverter, table showing monthly mean of daily global solar radiation on horizontal surface for all states in Nigeria (Kwh/m2/day), sample of solar modules name plates showing short circuit currents (ISC).
Week 7: Mid-Term Break
The mid-term break allows students to rest. Teachers should administer a mid-term test covering all topics from Week 1 to Week 6 before the break.
Week 8: Concept of Entrepreneurship
1. Content: This week addresses the meaning of entrepreneurship, benefits of entrepreneurship, the entrepreneur and entrepreneur (types, characteristics, skills/competencies, functions, factors influencing intrapreneur and entrepreneur), and challenges of entrepreneurship in Nigeria including funding, basic infrastructure, and lack of skills and values.
2. Performance Objectives: Students should be able to explain the meaning of entrepreneurship, intrapreneur and entrepreneur, discuss the benefits of entrepreneurship, differentiate between intrapreneur and entrepreneur, and identify the challenges of entrepreneurship practices in Nigeria.
3. Learning Activities:
i. Teacher Activities: The teacher guides group brainstorming on meaning and benefits, facilitates internet searches for differences, organizes debates on challenges.
ii. Learning Activities: The learners brainstorm in groups on the meaning and benefits of entrepreneurship, search the internet and other sources for information on the differences between the entrepreneur and the intrapreneur, debate on the challenges of entrepreneurship practices in Nigeria.
4. Teaching and Learning Resources: ICT devices with internet access, workbooks, pictorial books in trade areas, video clips on entrepreneurship, cardboards and markers for presentations.
Week 9-10: Concept of Money
1. Content: The content covers meaning and evolution of money, uses of money, saving money (meaning, importance, methods of saving money), and sources of funding for Solar Photovoltaics (PV) Installation and Maintenance start-up including personal sources and family sources.
2. Performance Objectives: Students should be able to explain the meaning and origin of money, discuss the uses of money, state the importance and methods of saving money, and describe the sources of Solar Photovoltaics (PV) Installation and Maintenance start-up.
3. Learning Activities:
i. Teacher Activities: The teacher leads group brainstorming on meaning, origin, and uses, organizes debates on importance and methods of saving, guides design of savings cards and recording demonstrations, facilitates online searches for funding sources.
ii. Learning Activities: The learners brainstorm in groups on the meaning, origin and uses of money, debate on the importance and methods of saving money, design a savings card, and demonstrate how to carefully record their savings, search online for information on the sources of funding for Solar Photovoltaics (PV) Installation and Maintenance start-up.
4. Teaching and Learning Resources: Samples of local currencies in different denominations, samples of a piggy banks, cardboard paper to design a card for recording savings, savings chart, and digital devices.
Week 11: Revision
Teachers should use this week to revise all topics from Week 1 to Week 10. Conduct review sessions, address student questions, and ensure students are prepared for the examination.
Week 12: Examination
The second term examination commences. The test should assess both theoretical understanding and practical application of concepts learned throughout the term.
Week 13: Examination, Marking & Vacation
Complete the examination, finish marking, record results, and release students for vacation.