Band 5.0 IELTS Writing Task 1 Model Answer
Overall Band Score: 5.0 · Cambridge IELTS 12 · 2026-09-26
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 mentioned diagram indicates that how geothermal energy is used to produce electricity. The procedure of generating electricity through geothermal power plant seems to be very interesting.
Initially, the cold water is pumped to deep 4.5km towards the geothermal zone where hot rocks are present.When cold water passes away from geothermal zone, it becomes hot water which moves upward into a condenser. Thereafter, reaching the condensor it becomes steam and the steam is directed towards thr turbine which is powered by the steam.Moreover, when trubine turns on they generate electricity.Moreover, when electricity is generated from turbine thenit transfers to the powerplants. Where from it is assigned to the dedicated powerhouses.
This is the whole process of producing electricity through geothermal energy.
AI examiner evaluation
| Criterion | Band |
|---|---|
| Task Achievement / Task Response | 5.0 |
| Coherence and Cohesion | 5.0 |
| Lexical Resource | 5.5 |
| Grammatical Range and Accuracy | 5.0 |
| Overall | 5.0 |
Task Achievement / Task Response: Band 5.0
The student attempts to summarise the diagram showing how geothermal energy produces electricity, covering the main steps from pumping cold water underground to generating power. However, the response falls significantly short of the 150-word minimum, containing only 121 words, which directly impacts the task achievement score. Furthermore, there are minor inaccuracies in describing the process, such as stating that water becomes steam upon reaching the condenser, whereas the diagram shows water turning to steam and then driving the turbine. Key features such as the depth of 4.5 km are mentioned, but the overall development is limited and brief. To achieve a higher band, the writer must ensure the word count requirement is met and provide a more thorough, accurate account of each stage in the process.
Coherence and Cohesion: Band 5.0
The response has a basic structure with an introduction, a body paragraph detailing the process, and a concluding sentence. However, the paragraphing is very weak, with the main process crammed into a single block of text alongside conversational framing. Cohesive devices are used, such as 'Initially', 'Thereafter', and repetitive uses of 'Moreover', but referencing is sometimes awkward (e.g., 'when trubine turns on they generate electricity'). The logical progression follows the chronological order of the diagram, but the abrupt shifts and mechanical linking words prevent a higher score. More varied and accurate cohesive devices alongside proper paragraph division are needed for a band 6 or above.
Lexical Resource: Band 5.5
The student demonstrates an adequate vocabulary range for this task, successfully incorporating topic-specific terms such as 'geothermal energy', 'power plant', 'condenser', 'turbine', and 'generator'. However, there are notable word choice and spelling errors, such as 'condensor' instead of 'condenser', 'thr turbine', and 'trubine'. The phrase 'passes away' is incorrectly used for water flowing past hot rocks. While the writer attempts some less common vocabulary, the persistent spelling errors and unnatural collocations restrict the score to a 5.5.
Grammatical Range and Accuracy: Band 5.0
The writer attempts a mix of simple and complex sentence forms, such as 'When cold water passes away from geothermal zone, it becomes hot water which moves upward into a condenser.' However, control over grammar and punctuation is inconsistent. There is a direct error in clause structure in the opening sentence: 'The mentioned diagram indicates that how geothermal energy is used to produce electricity.' Other errors include missing articles ('to deep 4.5km'), punctuation issues around clauses, and pronoun agreement errors ('when trubine turns on they generate'). Frequent errors cause occasional strain for the reader.
See this exact question answered at other band scores. The same prompt compared across bands.
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