Band 5.0 IELTS Writing Task 1 Model Answer
Overall Band Score: 5.0 · Cambridge IELTS 12 · 2026-08-20
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 that the geothermal energy providing the electric energy by such various steps there are five steps in this diagram
Overall, the main feature in this power plant is turbine and generator without this the plant cant generate electric current others is also important but these are main also steam
To begin with, this plant first step is store cold water in water container after that in underground pass that water by 4.5 km cold water pump down after that the injection well through the water pass through geothermal zone also known as hot rocks and with the cold water and hot rock it produce condenser.
Additionally, through that hot rock the producing well through that hot water pumped up by 4.5 km to condenser container in that the steam rotate the turbine power by steam the generator is work power by turbine and produce electricity and then it pass through electricity pole.
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 attempts to describe the process, but it fails to clearly outline the stages in a logical or accurate manner. While it mentions the five steps, the description of the geothermal process is confusing and technically inaccurate (e.g., claiming the interaction of cold water and hot rock produces a 'condenser'). The overview is weak and does not effectively highlight the main features of the diagram. The explanation of the cycle is fragmented, making it difficult for the reader to follow the energy conversion process. To improve, focus on clearly identifying the sequence of events and describing the function of each component accurately based on the visual information provided.
Coherence and Cohesion — Band 5.0
The essay is divided into paragraphs, but the internal structure of these paragraphs is weak. The use of cohesive devices such as 'To begin with' and 'Additionally' is mechanical and does not always lead to logical progression. The sentences are often run-on or lack proper punctuation, which disrupts the flow of information. Referencing is sometimes unclear, particularly when describing the movement of water and steam through the various components. To achieve a higher score, ensure that each sentence follows logically from the previous one and use a wider variety of linking words to connect ideas more fluidly.
Lexical Resource — Band 5.0
The vocabulary is quite limited and repetitive. Words like 'water', 'hot', and 'power' are used frequently without much variation. There are also issues with word choice and collocation, such as 'produce condenser' and 'electricity pole', which do not accurately describe the technical components shown in the diagram. The range of vocabulary is insufficient to describe the process with precision. To improve, you should learn and use more specific technical terminology related to energy production, such as 'geothermal reservoir', 'heat exchanger', 'turbine', and 'generator', and focus on using more precise verbs to describe the movement of fluids and energy.
Grammatical Range and Accuracy — Band 5.0
The grammatical control is weak, with frequent errors that occasionally impede communication. There are significant issues with subject-verb agreement (e.g., 'The diagram illustrate', 'the generator is work'), missing articles, and incorrect sentence structure. The response relies heavily on simple sentence structures, and attempts at more complex sentences often result in grammatical errors. Punctuation is also inconsistent, with a lack of full stops, which makes the text difficult to read. To improve, focus on mastering basic sentence construction, ensuring subjects and verbs agree, and using correct punctuation to separate distinct ideas.
See this exact question answered at other band scores — the same prompt compared across bands.
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