Band 5.5 IELTS Writing Task 1 Model Answer

Overall Band Score: 5.5 · Cambridge IELTS 12 · 2026-11-08

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 5.5)

The diagram illustrate how geothermal Power is used to produce electricity.

Overall, this total procedure is consist of the total 5 steps. Starts from the Cold water which we pump down to injection wall. Moreover, It ends at Generator turbine which generates electricity.

Initially, We insert Cold water into a pump which goes down to injection well travelling 4.5km and land at the injection well. Whereas, Geothermal zone which we call hot rocks increase the water temperature. In addition, hot water arrive at The production well pumps the water upward into the condenser.

Secondly, Condenser turns water into the steam which is connected to turbine using a short route to supply steam. Futhurmore, Steam helps turbine to rotate and power the generator. Additionally, the generator which get power from the turbine and generates the Electricity.

therefore, water in pumped 4.5km down and then pumped upwards because hot rocks helps it to increase the temperature which assist consenter and easily turns into steam.

AI examiner evaluation

Task Achievement / Task Response: Band 6.0

You cover the main stages, from cold water being sent underground to electricity generation, and include the important depth of 4.5 km. The description of water passing through hot rocks and returning via the production well is also relevant. However, the overview is unclear and partly inaccurate: the process has five numbered stages, but it does not “end at Generator turbine”; the turbine and generator are separate components, with the generator producing electricity. Some details are under-developed or imprecise, particularly how the condenser produces steam and how the turbine drives the generator. A clearer overview of the full sequence, followed by accurate descriptions of each stage, would make the key features more complete and easier to understand.

Coherence and Cohesion: Band 6.0

The response has an overall sequence and uses separate paragraphs to distinguish the overview from the process details. Connectors such as “Initially,” “In addition,” and “Furthermore” help signal progression. However, some linking is mechanical or does not accurately express the relationship between ideas: “Whereas” does not introduce a contrast, and “therefore” begins a concluding sentence that largely repeats earlier information. The sequence also becomes less clear when the account moves from the production well to the condenser and then to the turbine and generator. Use fewer, more precise transitions and organise the body strictly in the order shown, with each stage clearly linked to the next.

Lexical Resource: Band 5.5

You use relevant process vocabulary, including “injection well,” “production well,” “geothermal zone,” “condenser,” and “turbine,” which allows the reader to identify the main components. There are also attempts at more specific wording, such as “pumped down” and “temperature.” However, inaccurate word choices and collocations sometimes make the description unclear: “land at the injection well” does not describe the water’s movement, and “the total procedure is consist” is not a natural expression. Spelling and capitalisation are inconsistent, as in “Futhurmore” and the unnecessary capitals in “Cold water” and “Electricity.” Aim for precise process verbs and standard spelling and capitalisation throughout.

Grammatical Range and Accuracy: Band 5.0

You attempt both simple and longer sentences, and the sequence is generally understandable despite some grammatical errors. However, control of verb forms and sentence construction is inconsistent. For example, “The diagram illustrate” needs subject–verb agreement, while “this total procedure is consist” combines incompatible verb forms. The fragment “Starts from the Cold water” also lacks a clear subject, and “water in pumped” has an incorrect verb form. Some sentences join several ideas without clear punctuation, making relationships harder to follow. Practise accurate present-simple descriptions of processes, including passive forms such as “water is pumped,” and check agreement, articles, and sentence boundaries when revising.

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

Browse more IELTS Writing model answers or get your own writing scored by the same AI examiner.