Band 6.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 6.0 · Cambridge IELTS 12 · 2026-11-10

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 diagram depicts the information about production of electricity by the geothermal energy. Overall, it is apparent that 5 steps are involve in production of electricity, which is started by pushing of cold water under the earth and ended up by transferring the electricity to grid station.

Intially, the cold water is pumped down into the 4.5 km tunnel deep into the earth where it reach the injection well. This well is fit into the geothermal zone where the hot rocks are located which help to increase the temperature of water. After passing through this region it reach the production well where hot water collected. Subsequently, the boiled water pump up into the condenser.

As the boiled water reached condenser it changed into the steam form. As the turbine attach with the condenser from one end which is powered by steam. Turbine run the generator which help to produce electricity. At last, the electricity transfer to national grid station where they stored energy.

AI examiner evaluation

Task Achievement / Task Response: Band 6.0

You give a relevant account of the process and include its main stages: cold water is sent underground, heated by hot rocks, brought back to the surface, converted to steam, and used to drive a turbine and generator. The opening overview also identifies the process’s start and end points. However, some details are unclear or inaccurate: the water reaches the injection well before passing through the geothermal zone, rather than the well being “fit into” that zone, and the diagram shows hot water entering a condenser, not boiled water being pumped into it. The final claim that electricity is stored at a national grid station is not shown; the diagram indicates transmission by power lines. Make the overview more precise and report only features supported by the diagram.

Coherence and Cohesion: Band 6.5

The response is organised into an overview followed by a chronological description, and the sequence from underground heating to electricity generation is generally easy to follow. Connectors such as “Initially,” “After passing through this region,” and “At last” help signal progression. This clear overall arrangement is a strength. Some links are less effective, however: “As the boiled water reached condenser” repeats the preceding stage rather than smoothly advancing the explanation, and “As the turbine attach with the condenser from one end” makes the relationship between the equipment difficult to follow. Use clearer references and transitions to distinguish the water’s route from the steam’s route, and group the surface-generation stages in a more connected explanation. This would make cohesion less mechanical and progression more consistently clear.

Lexical Resource: Band 6.0

You use a suitable range of process vocabulary, including “pumped down,” “geothermal zone,” “production well,” “condenser,” “steam,” and “generator.” These terms help communicate the stages, and the meaning is generally recoverable. Some word choices and collocations are inaccurate or awkward, such as “4.5 km tunnel” for a well, “fit into” for the well’s position, and “grid station” for the transmission system shown. “Boiled water” is also less precise than “hot water” at that point in the process. Spelling slips such as “Intially” and “reach” in place of “reaches” also reduce control. Aim for precise technical nouns and natural process collocations, while checking spelling and word forms.

Grammatical Range and Accuracy: Band 5.0

You attempt both simple and complex sentences, including a relative clause in “where the hot rocks are located” and a time clause beginning “After passing through this region.” The sequence remains understandable, but some grammatical errors recur. For example, “5 steps are involve” needs a past participle, “where it reach” needs subject–verb agreement, and “Turbine run the generator” needs an article and a correctly inflected verb. The clause “As the turbine attach with the condenser…” is also incomplete and lacks a clear grammatical connection to the next idea. Practise accurate passive forms for process descriptions and check agreement, articles, and complete clause structure. Greater control of these patterns would make your varied sentences clearer.

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