Types of renewable energy for SS 1

Class: SS 1
Term: First Term
Week: 2
Age: 15 years
Duration: 60 minutes
Subject: Solar PV Installation and Maintenance
Theme: Renewable Energy And Climate Change
Curriculum Theme: Principles of solar photovoltaic (PV)
Focal competence: Demonstrate the knowledge of Solar PV System as a viable source of renewable energy for environmental sustainability
Key competencies/values: Digital Competencies; Environmental Literacy
Skills:

• identify the types and sources of renewable energy

Previous Lesson: Sources of renewable energy
Topic: Renewable Energy And Climate Change: Types Of Renewable Energy
Subject Matter: Types of renewable energy

Specific Objectives

By the end of the lesson, pupils/students should be able to:

Cognitive Domain

• Identify different types of renewable energy.
• Describe the sources from which renewable energy is derived.
• Distinguish between renewable and non-renewable energy sources.
• Explain the basic concept of each type of renewable energy.

Affective Domain

• Appreciate the importance of renewable energy for environmental sustainability.
• Value the role of renewable energy in mitigating climate change.

Psychomotor Domain

• Illustrate types of renewable energy using charts or digital devices.
• Participate in group discussions and presentations on renewable energy types.

Social Domain

• Collaborate effectively in groups to discuss and present information on renewable energy.

Reference Materials

The following resources were used in planning this lesson:

• 2025 New Revised Senior Secondary Education Curriculum (SSEC)
• Relevant State Unified Scheme of Work
• The HeadTeacher Scheme of work For The New Revised Senior Secondary Education Curriculum (SSEC)

Instructional Materials

The teacher will teach this lesson with the aid of:

• Charts showing different types of renewable energy
• Video clips illustrating renewable energy technologies
• Digital devices (laptops, tablets, smartphones)
• Internet access
• Whiteboard and markers

Rationale for the Lesson

This lesson is important for students to understand sustainable energy options. It provides foundational knowledge on various renewable energy sources, which is crucial for appreciating the principles of solar PV systems and their role in environmental protection. Understanding these types helps students make informed decisions about energy choices and their impact on resource availability and climate change.

Prerequisite/Previous Knowledge

Students should have a basic understanding of energy, its general uses, and common energy sources from their Junior Secondary education.

Lesson Content/Board Summary

Types of Renewable Energy

What is Renewable Energy?

Renewable energy is energy derived from natural sources that replenish themselves on a human timescale. These sources are considered inexhaustible or naturally regenerated. In contrast, non-renewable energy sources are finite and take millions of years to form, meaning they can be depleted.

Types of Renewable Energy Sources

There are several types of renewable energy, each harnessing different natural processes:

1. Solar Energy: This is energy from the sun, captured using photovoltaic (PV) panels or concentrated solar power (CSP) systems. Solar energy can be converted into electricity or used to heat water and buildings. It is abundant and widely available.
2. Wind Energy: Wind energy is generated by harnessing the kinetic energy of wind using large turbines. These turbines convert wind into mechanical power, which can then be used to generate electricity. Wind farms are typically located in areas with consistent strong winds.
3. Hydroelectric Power (Hydropower): This type of energy is generated by the force of moving water, usually from rivers or dams. Water flows through turbines, which spin generators to produce electricity. Hydropower is a reliable source, but its development often involves significant environmental changes.
4. Geothermal Energy: Geothermal energy comes from the heat within the Earth’s core. This heat can be used directly for heating or to generate electricity by driving turbines with steam produced from hot water reservoirs deep underground.
5. Biomass Energy: Biomass energy is derived from organic matter, such as plants, agricultural waste, animal waste, and municipal solid waste. This organic material can be burned directly to produce heat or electricity, or converted into biofuels like ethanol and biodiesel.
6. Ocean Energy (Tidal and Wave Energy): This category includes energy derived from the movement of ocean tides and waves. Tidal energy harnesses the rise and fall of ocean tides, while wave energy captures the power of ocean surface waves. These technologies are still developing but hold significant potential.

Renewable Energy and Environmental Effects (Climate Change)

Renewable energy sources play a critical role in combating climate change because they produce little to no greenhouse gas emissions during operation. Unlike fossil fuels (coal, oil, gas) which release large amounts of carbon dioxide and other pollutants when burned, renewable energy sources help reduce the carbon footprint and improve air quality. By choosing renewable energy, societies can reduce their reliance on finite resources and mitigate the adverse effects of global warming.

Teaching Methods/Instructional Techniques

Discussion, Demonstration, Guided Practice, Question and Answer, Explanation, Group Work, Internet Research, Class Presentation.

Instructional Procedures

Step 1: Introduction

Time: 5 minutes

Teaching Skill: Questioning/Engagement

Teacher’s Activity: The teacher greets the students and asks them to mention different sources of energy they know and how they are used in their homes or communities.

Pupils’ Activity: Pupils respond by mentioning sources like petrol, diesel, electricity, firewood, and their uses.

Learning Point: Familiar energy sources

Step 2: Introduction of Renewable Energy Concept

Time: 10 minutes

Teaching Skill: Explanation/Definition

Teacher’s Activity: The teacher introduces the concept of renewable energy, explaining its definition and contrasting it with non-renewable energy sources using simple examples. The teacher also shows charts illustrating various renewable energy types.

Pupils’ Activity: Pupils listen attentively, observe the charts, and ask questions for clarification.

Learning Point: Renewable energy definition

Step 3: Types and Sources of Renewable Energy

Time: 10 minutes

Teaching Skill: Demonstration/Explanation

Teacher’s Activity: The teacher displays charts and plays short video clips showing different types of renewable energy (solar, wind, hydro, geothermal, biomass) and their respective sources. The teacher briefly explains each type.

Pupils’ Activity: Pupils watch the video clips, observe the charts, and identify the different types of renewable energy.

Learning Point: Identifying energy types

Step 4: Group Discussion on Types and Sources

Time: 10 minutes

Teaching Skill: Group Facilitation

Teacher’s Activity: The teacher divides students into small groups and guides them to discuss the types and sources of renewable energy they have identified from the charts and video clips. They are encouraged to brainstorm examples.

Pupils’ Activity: Students discuss in their groups, identifying and listing the types and sources of renewable energy.

Learning Point: Group discussion skills

Step 5: Class Presentation by Groups

Time: 5 minutes

Teaching Skill: Presentation/Feedback

Teacher’s Activity: The teacher asks each group to make a brief presentation of their findings on the types and sources of renewable energy. The teacher provides feedback and clarifies any misconceptions.

Pupils’ Activity: Groups present their discussions to the class. Other pupils listen and ask questions.

Learning Point: Presenting energy types

Step 6: Renewable Energy and Climate Change Research

Time: 5 minutes

Teaching Skill: Guided Research

Teacher’s Activity: The teacher guides students to use their digital devices to search the internet for information on the relationship between renewable energy and climate change. The teacher facilitates a brief class discussion based on their findings.

Pupils’ Activity: Students use digital devices to research and share their findings on the relationship between renewable energy and climate change.

Learning Point: Energy-climate link

Step 7: Evaluation/Review

Time: 5 minutes

Teaching Skill: Questioning/Assessment

Teacher’s Activity: The teacher evaluates the learning by asking the following questions:

1. What is renewable energy?
2. Mention three types of renewable energy sources.
3. How does solar energy differ from wind energy?
4. Why is renewable energy important for the environment?

Pupils’ Activity: Pupils answer orally and in writing.

Learning Point: Understanding energy types

Step 8: Note-Taking

Time: 10 minutes

Teaching Skill: Guided Writing

Teacher’s Activity: The teacher guides pupils/students to copy the essential Board Summary notes on the types of renewable energy into their notebooks.

Pupils’ Activity: Pupils/students copy the notes carefully into their notebooks.

Learning Point: Recording lesson notes

Step 9: Conclusion

Time: 5 minutes

Teaching Skill: Consolidation

Teacher’s Activity: The teacher summarises the key points of the lesson, reiterating the importance of renewable energy for a sustainable future and its role in combating climate change. The teacher encourages students to observe renewable energy applications in their daily lives.

Pupils’ Activity: Pupils listen and ask any final questions.

Learning Point: Renewable energy importance

Continuous Assessment/Further Study

Type: Homework

Instruction: Answer the following questions in your notebook:

1. Define renewable energy and give two examples.
2. List and briefly explain three advantages of using renewable energy over non-renewable energy.
3. Research and write a short paragraph on how solar energy is being used in Nigeria.

Lesson Keywords

• Renewable Energy – Energy from sources that naturally replenish, such as sunlight, wind, rain, tides, waves, and geothermal heat.
• Non-renewable Energy – Energy from sources that are finite and cannot be replenished on a human timescale, such as fossil fuels (coal, oil, natural gas).
• Solar Energy – Energy derived from the sun’s radiation.
• Wind Energy – Energy generated by harnessing the kinetic energy of wind.
• Hydroelectric Power – Electricity generated by the force of moving water.
• Geothermal Energy – Heat energy derived from the Earth’s interior.
• Biomass Energy – Energy derived from organic matter.
• Climate Change – Long-term shifts in temperatures and weather patterns, largely caused by human activities, especially the burning of fossil fuels.

Differentiation

Support: For students who struggle, provide simplified charts and direct examples. Pair them with stronger students during group discussions and offer additional guidance during internet searches. Focus on identifying and listing the main types of renewable energy.

Extension: Encourage advanced students to research specific renewable energy projects in Nigeria or explore the economic and policy aspects of renewable energy adoption. They can also investigate the challenges associated with each type of renewable energy.

Suggested Lesson Videos

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