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 diagram illustrate about how electricity is produced with the use of geothermal energy in the geothermal power plant. at the first segment it illustrate the use of cold water where the flow of cold water is at the depth of 4.5km and the cold water is pumped down which moves down the injection well. through the injection well there occurs a geothermal zone also regarded as hot rocks zone where the flow of cold water is horizontal .after it reaches the production well the hot water is pumped up which eventually led to the condensor where further steam is injected towards the turbine. subsequently the turbine works after the passage of hot air that is being passed down towards turbine flow and furthermore the generator located after turbine is capable of producing or supplying energy.here the generator is powered by turbine which is capable of producing significant amount of electricity

AI examiner evaluation

Task Achievement / Task Response — Band 5.0

The response covers the main stages of the geothermal energy process, from the injection of cold water to the generation of electricity. However, the description lacks a clear overview or summary of the process, which is essential for Task 1. The explanation of the cycle is somewhat mechanical and lacks a cohesive summary of the transformation of energy. While the key features are identified, the response would benefit from a more structured approach that highlights the cyclical nature of the process. The information is generally accurate, but the lack of an introductory overview or a concluding summary limits the score.

Coherence and Cohesion — Band 5.0

The response is written as a single block of text, which significantly hinders readability and logical progression. There is a lack of paragraphing to separate the different stages of the process (e.g., the underground phase versus the surface phase). While some cohesive devices like 'subsequently' and 'furthermore' are used, they feel somewhat forced. The flow of ideas is repetitive, and the lack of clear signposting makes it difficult for the reader to follow the sequence of events effectively. Improved paragraphing and a wider variety of linking words would enhance the coherence.

Lexical Resource — Band 5.0

The vocabulary is adequate for the task but remains quite basic and repetitive. Phrases such as 'the flow of cold water' are used multiple times, and terms like 'hot air' are used inaccurately to describe steam. There is an attempt to use technical terms like 'injection well' and 'condensor', but the overall range is limited. To achieve a higher band, you should aim for more precise terminology related to energy production and avoid repeating the same phrases throughout the response.

Grammatical Range and Accuracy — Band 5.0

The response contains several grammatical errors that affect the quality of the writing. There are frequent issues with subject-verb agreement, such as 'the diagram illustrate' instead of 'illustrates'. Punctuation is also problematic, with a lack of capital letters at the beginning of sentences and missing commas. The sentence structures are relatively simple, and there is a lack of complex sentence forms. While the meaning is generally clear, the frequent errors in basic grammar and punctuation prevent the response from reaching a higher band.

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