Band 5.0 IELTS Writing Task 1 Model Answer
Overall Band Score: 5.0 · Cambridge IELTS 12 · 2026-08-24
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 5.0)
The diagram illustrate the process of geothermal power plant which starts with cold water and ends at generator turbine
it begins with cold water which is pumped down by 4.5 kilometers in the injection well and then it goes through geothermal zone hot rocks which is the proceed to the production well in which the hot water is pumped up which then get condense in the condenser and then turns into steam which is then powered by steam in the rotating turbine and lastly powered by turbine and produce electricity in the generator turbine and then energy is ready to produce electricity
to conclude there are 5 steps of how geothermal energy is producing electricity cold water , the injection well , the production well ,condenser and lastly generator turbine.
AI examiner evaluation
| Criterion | Band |
|---|---|
| Task Achievement / Task Response | 5.0 |
| Coherence and Cohesion | 5.0 |
| Lexical Resource | 5.0 |
| Grammatical Range and Accuracy | 5.0 |
| Overall | 5.0 |
Task Achievement / Task Response — Band 5.0
The response fails to meet the minimum word count requirement of 150 words, which significantly impacts the score. While the main features of the geothermal process are identified, the description is overly simplistic and lacks the necessary detail to fully explain the cycle. The overview is weak, and the explanation of the technical stages (such as the condenser and turbine interaction) is repetitive and lacks clarity. To improve, you must provide a more comprehensive summary of the process, ensuring that all stages are described with sufficient detail and that the response meets the length requirement to allow for a full development of the task.
Coherence and Cohesion — Band 5.0
The response is organized into three very short paragraphs, but the flow is disjointed. There is a lack of cohesive devices to link the stages of the process logically. The use of 'and then' is repetitive and mechanical, which hinders the progression of the text. The conclusion is essentially a list rather than a summary of the process. To improve, use a wider range of linking words and transition signals (e.g., 'subsequently', 'following this', 'as a result') to create a more natural flow between the steps of the geothermal cycle.
Lexical Resource — Band 5.0
The vocabulary is quite limited and repetitive. You rely heavily on basic terms like 'cold water', 'hot water', and 'produce electricity'. There is little attempt to use more precise technical vocabulary related to energy production, such as 'geothermal reservoir', 'thermal energy', or 'conversion'. Additionally, there are errors in word choice, such as 'get condense' instead of 'condenses' or 'is condensed'. To improve, focus on learning topic-specific vocabulary and ensure you use the correct word forms (nouns, verbs, adjectives) to describe the process accurately.
Grammatical Range and Accuracy — Band 5.0
The grammar is characterized by frequent errors that occasionally impede clarity. There are issues with subject-verb agreement (e.g., 'The diagram illustrate') and sentence structure, such as run-on sentences that lack proper punctuation. The range of structures is very limited, consisting mostly of simple sentences connected by 'and'. There is a lack of complex sentence structures, which are necessary for higher band scores. To improve, focus on basic grammatical accuracy, such as verb tense consistency and subject-verb agreement, and practice combining simple sentences into more complex, grammatically correct structures.
See this exact question answered at other band scores — the same prompt compared across bands.
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