Introduction
Energy is the foundation for almost all human activities. Whether it's turning on a light bulb, cooking, or moving our vehicles, energy plays a fundamental role. However, most of our current energy sources are considered non-renewable, meaning they are depletable. They are obtained from fossil fuels (oil, natural gas, and coal), which have their origin in remains of animals and plants buried millions of years ago. The massive and accelerated use of these sources, besides depleting them, also generates a significant environmental impact, contributing to climate change.
Therefore, the search for renewable energy sources has become an urgent need. These are obtained from natural sources capable of regenerating, such as the Sun (solar energy), winds (wind energy), water (hydropower), and biomass. In addition, these energy sources cause less harm to the environment, contributing to the sustainability of our planet.
More than just an alternative, renewable energy sources are an expanding field that requires skilled professionals and an informed population to make conscious choices. Therefore, understanding this topic is not just a theoretical issue, but something that directly impacts our lives and our future.
Context
In Brazil, a large part of the energy comes from renewable sources, mainly hydropower. However, the exploitation of water for energy generation also has its impacts, such as the alteration of ecosystems and displacement of communities. Additionally, we are subject to climatic variations that can affect the availability of this resource. This became evident in recent episodes of water crises, which led to an increase in energy prices.
On the other hand, we have a great potential still underexplored for solar and wind energy generation. It is in this context that possibilities such as energy microgeneration arise, where each house or building produces its own energy, and the creation of jobs in the sector. In order to take advantage of these opportunities and face the challenges, it is necessary to understand the socio-economic and environmental implications of different energy sources.
Practical Activity
Activity Title: Renewable Energies for the Future
Project Objective:
To put students in direct contact with the theme of renewable energies, understanding theoretical concepts, advantages, disadvantages, and practical applications of these energy sources, as well as adopting collaborative work, research, and writing practices.
Detailed Project Description:
Students, in groups of 3 to 5, should develop a detailed plan for the transition of a fictional city to the exclusive use of renewable energy sources within a period of 30 years. This plan should include an analysis of different renewable sources, taking into account the city's geographical and climatic location, economy, culture, and local demographics.
Students should create a map of the city, showing its location and geographical distribution, main characteristics, and current energy uses. Next, they should present implementation plans for different renewable energy sources, justifying the choices in terms of efficiency, feasibility, and socio-environmental impact.
In this process, students are encouraged to investigate the integration of various disciplines, such as Geography, Mathematics, Physics, Biology, and Sociology.
Required Materials:
- Books and scientific articles on the topic;
- Materials for map production (paper, colored pencils, markers, etc.);
- Internet access for research and use of digital tools.
Detailed Step-by-Step for Activity Execution:
- Form groups of 3 to 5 students.
- Define the fictional city, its characteristics, and geographical location.
- Research different renewable energy sources and their applications.
- Analyze and choose the appropriate energy sources for the city based on its characteristics.
- Develop a 30-year plan for a complete transition to renewable sources.
- Build a map of the city, indicating the implementation of energy sources.
- Write a detailed report on the project.
Project Deliverables:
The group must deliver the city map with implemented renewable energy sources and the detailed transition plan. Additionally, each group must prepare a written report including:
Introduction: This section should contain the description of the fictional city, the importance of renewable energies, and the relevance of the proposed project.
Development: Here the group should explain the analyses and decisions made during the project, the methodology adopted, the theoretical concepts studied and used, as well as present and discuss the results obtained.
Conclusion: In this part of the report, the group should summarize the main points, explaining the learnings obtained and the conclusions drawn from the project.
Bibliography: The group should indicate all sources of information used for the report and the project as a whole.
Each group member should actively participate throughout the process, from initial research to the final document preparation. Teamwork is essential for the project's progress, as well as time management and the use of communication and problemsolving skills.
