Band 5.5 IELTS Writing Task 1 Model Answer
Overall Band Score: 5.5 · Cambridge IELTS 12 · 2026-08-06
IELTS Writing Task 1 question
The diagram below shows how geothermal energy is used to produce electricity.
Summarise the information by selecting and reporting the main features, and make comparisons where relevant.
Student answer (Band 5.5)
The diagram illustrates process of geothermal energy is used to generate electricity for their customer and industries.
Overall, it can be clearly seen that this is a man made process of produce electricity using Geothermal power plant has five steps which start with cold water sent to the injection well and ends with how turbine generate electricity.
Initially, collected cold water is send into 4.5 km down to the injection well using water pump. After that, it is passed in geothermal zone. there are many hot rocks which helps to heat the water and send to the production well.
In the next stage, the hot water is pumped up to condenser and is converted in steam firm. Subsequently, steam is sent into the turbine meanwhile turbine is spin and sent to generator. In the final stage, electricity is produced by using generator and provide to consumer, domestic and industrial use.
AI examiner evaluation
| Criterion | Band |
|---|---|
| Task Achievement / Task Response | 5.5 |
| Coherence and Cohesion | 5.5 |
| Lexical Resource | 5.5 |
| Grammatical Range and Accuracy | 5.0 |
| Overall | 5.5 |
Task Achievement / Task Response — Band 5.5
The response covers the main stages of the geothermal energy process, from the injection of cold water to the final distribution of electricity. The overview is clear and identifies the five-step nature of the process. However, the description of the process is somewhat mechanical and lacks a more sophisticated synthesis of the information. While all key features are mentioned, the explanation of the 'geothermal zone' and the transition between the condenser and the turbine could be more detailed to fully meet the requirements of a higher band. The report is accurate in its summary of the provided diagram.
Coherence and Cohesion — Band 5.5
The essay is organized into logical paragraphs, each focusing on a specific stage of the process. The use of cohesive devices such as 'Initially', 'After that', 'In the next stage', and 'Subsequently' helps guide the reader through the sequence of events. However, some transitions feel slightly repetitive or mechanical. The referencing is generally clear, though the connection between sentences could be smoother to improve the overall flow. Paragraphing is used appropriately to separate the introduction, overview, and the body stages of the process.
Lexical Resource — Band 5.5
The vocabulary is adequate for the task, with terms like 'injection well', 'geothermal zone', 'condenser', and 'generator' used correctly. However, there are some awkward phrasing choices, such as 'steam firm' (likely meant 'steam form') and 'turbine is spin'. The range of vocabulary is somewhat limited, relying on basic verbs and nouns. To achieve a higher score, you should aim to incorporate more precise technical collocations and avoid minor word-choice errors that occasionally distract from the clarity of the description.
Grammatical Range and Accuracy — Band 5.0
The response contains a mix of simple and complex sentence structures. There are several grammatical errors, such as 'is send' (should be 'is sent'), 'helps to heat the water and send' (should be 'helps to heat the water and sends'), and 'turbine is spin' (should be 'the turbine spins'). These errors are frequent enough to be noticeable but do not significantly impede the reader's understanding of the process. The use of passive voice is appropriate for a process description, but the control over verb forms and subject-verb agreement needs improvement.
See this exact question answered at other band scores — the same prompt compared across bands.
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