The topic of hydrogen fuel cells and clean energy technologies has become increasingly prevalent in IELTS Writing Task 2 examinations. Based on analysis of past papers and current trends, questions about alternative energy sources appear in approximately 15-20% of tests, with particular emphasis on hydrogen fuel cells emerging as a key focus in recent years. Let’s explore some authentic exam questions and provide detailed sample responses.
Analyzing the Task Question
Some people believe that hydrogen fuel cells are the best solution for reducing carbon emissions from vehicles. Others think there are better alternatives. Discuss both views and give your opinion.
This question type requires candidates to evaluate different perspectives while presenting their own stance on the issue of Alternative fuels for transportation.
Hydrogen Fuel Cell Vehicle Technology Demonstration at Clean Energy Exhibition
Sample Essay 1 (Band 8.0)
The debate over the most effective method to reduce vehicular carbon emissions has intensified, with hydrogen fuel cells emerging as a promising solution. While some advocate for this technology’s supremacy, others argue that alternative approaches may be more viable. This essay will examine both perspectives before presenting my own viewpoint.
Proponents of hydrogen fuel cells highlight several compelling advantages. Firstly, these cells emit only water vapor as a byproduct, making them genuinely zero-emission solutions. Furthermore, hydrogen-powered vehicles can be refueled quickly, similar to conventional cars, and offer comparable range capabilities. This technology has already been successfully implemented in various transportation sectors, from passenger cars to heavy-duty trucks.
However, critics point to significant challenges in implementing hydrogen fuel cell technology. The primary concerns relate to the high costs of infrastructure development and the energy-intensive process of hydrogen production. Those advocating for alternatives suggest that battery electric vehicles, supported by renewable energy implementation challenges, represent a more practical solution, given the existing electrical grid infrastructure and decreasing battery costs.
In my opinion, while hydrogen fuel cells show tremendous potential, they should be viewed as part of a diverse approach to reducing carbon emissions rather than the sole solution. Different transportation needs may require different solutions – hydrogen fuel cells might be ideal for heavy-duty vehicles and long-distance transport, while battery electric vehicles could better serve urban mobility needs.
In conclusion, the optimal strategy for reducing vehicular carbon emissions likely involves a combination of technologies, including hydrogen fuel cells, based on specific application requirements and local conditions. (276 words)
Clean Energy Technologies Comparison Chart Showing Various Solutions
Sample Essay 2 (Band 6.5)
These days, many people talk about using hydrogen fuel cells to make cars cleaner. Some think it’s the best way to reduce pollution, but others disagree. I will discuss both sides and share what I think.
People who support hydrogen fuel cells have some good points. These cars don’t produce harmful gases, only water. Also, you can fill them up quickly, just like normal cars. Some big companies are already making hydrogen cars, and they work well.
On the other hand, there are some problems with hydrogen cars. They cost a lot of money to make and buy. Also, there aren’t many places where you can fill up with hydrogen. Electric cars might be better because we already have electricity everywhere, and they’re getting cheaper.
I think both types of cars can help reduce pollution. Maybe we can use hydrogen cars for big trucks and long trips, and electric cars for driving in cities. We shouldn’t just choose one solution but use different types depending on what we need.
In conclusion, hydrogen fuel cells are good but not the only answer to reducing car pollution. We need to use different technologies to solve this problem. (147 words)
Key Vocabulary to Remember
- Fuel cell (n) /fjuːl sɛl/ – A device that generates electricity through a chemical reaction
- Infrastructure (n) /ˈɪnfrəstrʌktʃər/ – Basic physical structures needed for operation
- Zero-emission (adj) /ˈzɪərəʊ ɪˈmɪʃ(ə)n/ – Producing no harmful emissions
- Viable (adj) /ˈvaɪəb(ə)l/ – Capable of working successfully
- Implementation (n) /ˌɪmplɪmɛnˈteɪʃ(ə)n/ – The process of putting a plan into effect
Concluding Tips
For future practice, consider these potential question variations:
- Compare different clean energy technologies for public transportation
- Discuss government investment in hydrogen infrastructure
- Evaluate the economic impacts of transitioning to hydrogen fuel cells
Share your practice essays in the comments section for feedback and improvement suggestions.
