Band 6.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 6.0 · Cambridge IELTS 12 · 2026-10-25

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 process of using geothermal energy to build electricity

Overall,the whole process consists of 5 main stages.The steps start with pumping down of cold water and ends with the steam power which is forced into the turbine to operate the generator to get the final output which is producing electricity.

Firstly,cold water is pumped from the land to 4.5km down into the injection well .Cold water get mixed into geothermal zone which consists of hot rocks,by mixing into that cold water turns into hot water in the third stage which is named the production well.After that the hot water is pumped up to the ground which leads directly to Condenser.

In the next stage,steams exist out from the condenser as the result of pumping hot water into that.With the help of that produced steam turbine spines up and it gives power to the generator,following that as the final output electricity is produced by the generator.

AI examiner evaluation

Task Achievement / Task Response: Band 6.0

You cover the main sequence accurately: cold water is sent down the injection well, heated as it passes through the hot-rock zone, brought up through the production well, and used to generate electricity. The overview also identifies the process as having five stages and gives its beginning and end. This is a relevant account of the diagram, but some details are less fully or precisely explained. For example, the condenser is said to release steam “as the result of pumping hot water into that,” which does not clearly describe the conversion shown. The generator’s role is mentioned, but the connection to the electricity transmission pylon is omitted. Clarifying the condenser’s function and including this final connection would make the account more complete.

Coherence and Cohesion: Band 6.0

The response has a clear overall arrangement: an introduction and overview are followed by the underground stages and then the steam-driven equipment. Sequencing expressions such as “Firstly,” “After that,” and “In the next stage” help the reader follow the process. However, cohesion is sometimes mechanical, with several stages linked through repeated “after” or “with the help of” constructions. Some references are also unclear: “into that” does not identify the condenser precisely, and “that produced steam” makes the relationship between the condenser and steam less smooth. The overview’s “the steps start … and ends” also disrupts the flow. Use more precise references and vary the links between stages to improve progression.

Lexical Resource: Band 6.0

You use an adequate range of process vocabulary, including “injection well,” “geothermal zone,” “production well,” “condenser,” “turbine,” and “generator.” These terms make the stages recognisable, and “pumped down” and “pumped up” convey the direction of water movement. Some word choices and collocations are inaccurate or informal, however. “Build electricity” is not a natural way to describe generation, “steams exist out” is unclear, and “spines up” is an unsuitable expression for a turbine’s movement. “Cold water get mixed into geothermal zone” also describes the heating imprecisely. Choose standard process verbs such as “generate,” “emerge,” and “rotate,” and describe the water as being heated by the hot rocks.

Grammatical Range and Accuracy: Band 5.5

You attempt both simple and more complex sentences, including a relative clause in “which consists of hot rocks” and a sequence of linked process clauses. The main stages remain understandable, but some grammatical errors recur. Subject–verb agreement is incorrect in “cold water get mixed” and “turbine spines up”; the overview also shifts awkwardly between “consists” and “ends.” Articles and sentence boundaries need attention, as in “leads directly to Condenser,” while missing spaces after commas and inconsistent punctuation make several sentences harder to read. The long sentence beginning “With the help of that produced steam” would be clearer if divided into two sentences. Check agreement, articles, and punctuation when editing.

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