Band 6.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 6.0 · Cambridge IELTS 12 · 2026-11-02

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 6.0)

The flow chart diagram illustrates the procedure of Geothermal power plant to produce electricity by passing five stages such as , cold water, injection, production,condenser, turbines and generator.

Overall, power generation is the multi stage process. It is generated by cold water, which is converted into hot water then steam uses for turbines. The final stage is generator to produce electricity

First ,it is the cold water stage which is pumped down almost 4.5km in the river. Then injected well and passed through geothermal zone for heating. The hot water is produced well by hot rocks and comes out in the production phase.

Secondly, the hot water is again pumped up and collect in the condenser. it is further connected with turbines and the steam of condenser is moved into the turbines then turbines rotate and generate power by steam. This power is further passed into the generator which produce electricity. Now the electricity is able to use.

AI examiner evaluation

Task Achievement / Task Response: Band 6.5

You cover the main sequence and give a relevant overview: cold water is pumped underground, heated by the hot rocks, brought back up, and used to produce electricity. The reference to a depth of 4.5 km is accurate, and you identify the condenser, turbine and generator. This meets the task well, though some details are unclear or imprecise: “in the river” is not shown, and the water passes through an injection well rather than being “injected well.” The account also blurs the condenser’s role: it releases steam, which then powers the turbine. To make the description more complete and precise, explain the movement between each component and avoid adding unsupported details.

Coherence and Cohesion: Band 6.0

The response has a recognisable structure, with an introduction, an overview and paragraphs describing the process. The sequence is generally understandable, and words such as “First” and “Then” help guide the reader. However, progression is not consistently clear: “Secondly” introduces a stage that follows several steps already described, while the final paragraph repeats the movement of hot water and steam. Some connections are also awkward, as in “This power is further passed into the generator,” where the reference to “power” is unclear. Organise the stages in one continuous sequence and use precise references such as “the steam” or “the turbine” to make the links between steps clearer.

Lexical Resource: Band 5.5

You use relevant process vocabulary, including “geothermal zone,” “condenser,” “turbines” and “generator,” which allows the reader to follow the general subject. There is also some attempt to vary wording, for example “pumped down” and “pumped up.” However, several choices are inaccurate or unnatural and reduce precision: “in the river” does not describe the diagram, “hot water is produced well” confuses the water with the production well, and “steam uses for turbines” is not an appropriate collocation. Some repetition of “power” and “stage” also limits range. Choose standard process verbs and collocations, such as water being heated, steam driving a turbine, and a generator producing electricity.

Grammatical Range and Accuracy: Band 5.0

You attempt both simple and more extended sentences, including a sequence linked with “which” and a sentence describing how the turbine and generator operate. However, control is inconsistent, and errors sometimes make relationships difficult to follow. For example, “steam uses for turbines” has an incorrect verb form, while “the hot water is produced well by hot rocks” has an unclear sentence structure. There are also agreement and article problems in “turbines rotate and generate power” and “the generator which produce electricity.” Capitalisation and punctuation are uneven, particularly after full stops. Practise accurate passive forms for process descriptions and check subject–verb agreement, articles and sentence boundaries.

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