Band 5.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 5.0 · Cambridge IELTS 12 · 2026-08-13

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 below given image illustrates that how geothermal energy is used to generate electricity.

The picture is about a geothermal power plant , in that a cold waters tank is located in the left hand side of a huge tower of power and cold water is pumped 4.5 km down in the ground called the injection well,and in the ground there is geothermal zone where hot rocks were located. Whereas a cold water is passing through hot rocks to the production well and cold water becomes hot water after it creates hot air called steam in the condenser.That steam is going under the generator turbine and steam gives the power to turbine after turbine gives power by roaming round and round to generator to produce electricity.After that the power is passing by generator to weirs that attached to electricity tower.An electricity is generated by all this things while attaching to each other and processing of power.

AI examiner evaluation

Task Achievement / Task Response — Band 5.5

The response provides a basic overview of the geothermal energy process, identifying the main components such as the injection well, geothermal zone, and turbine. However, the description is somewhat mechanical and lacks a clear, logical flow. The explanation of the process is slightly inaccurate in places, such as the claim that cold water becomes steam in the condenser; in reality, the steam is produced by the heat of the rocks before reaching the turbine. To improve, you should focus on accurately describing the sequence of events and ensuring the technical terminology is used correctly to reflect the diagram's information.

Coherence and Cohesion — Band 5.0

The response is written as a single block of text, which makes it difficult to follow. There is a lack of paragraphing, which is essential for organizing the introduction and the process description separately. While some cohesive devices like 'whereas' and 'after that' are used, they are often applied in a repetitive or slightly unnatural way. The progression of ideas is somewhat disjointed, and the lack of clear sentence boundaries makes the overall structure feel cluttered. Using clear paragraph breaks and a wider variety of linking words would significantly improve the flow.

Lexical Resource — Band 5.0

The vocabulary is generally limited and repetitive. Phrases like 'roaming round and round' and 'all this things' are informal and imprecise for an academic report. There is a reliance on basic vocabulary, and some terms are used incorrectly, such as 'weirs' (which likely refers to wires or power lines). To achieve a higher band, you should aim to use more precise, technical terminology related to energy production, such as 'geothermal reservoir,' 'heat exchanger,' or 'transmission lines,' and avoid colloquial phrasing.

Grammatical Range and Accuracy — Band 5.0

The response contains frequent grammatical errors, particularly with articles ('a cold waters tank', 'the injection well'), subject-verb agreement, and sentence structure. Many sentences are run-on or lack proper punctuation, making them difficult to parse. For example, 'An electricity is generated by all this things while attaching to each other' is grammatically incorrect and confusing. The range of structures is limited to simple sentences. Focusing on basic sentence construction, correct article usage, and avoiding run-on sentences will help improve your accuracy and clarity.

See this exact question answered at other band scores — the same prompt compared across bands.

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