Band 6.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 6.0 · Cambridge IELTS 14 · 2026-10-26

IELTS Writing Task 1 question

The diagram below shows how electricity is generated in a hydroelectric power station.

Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

Student answer (Band 6.0)

The diagram displays how electricity is generated in a hydroelectric power station. It demonstrates that how flow of river is converted into electricity.

It is clear that river water is collected in a high-level reservoir and a water pipe is directly connected to the power station. It shows that during day time the pipe is open and it is shutdown in the night time. Flow of water is towards power station from reservoir in the day time and flow is reversed during the night time.

Moreover, in power station there is a reversible turbines which operates gererator in the Morning and pump water into high-level reservoir during night and the remaining water is collected in the low-level reservoir. The generator supply the electricity through the power lines towards the national grid where electricity is provided to the citizens.

In conclusion, the process of generating electricity completely depands on the flow of water and the turbines available in the generator.

AI examiner evaluation

Task Achievement / Task Response: Band 6.0

You cover the main stages and correctly identify the high-level reservoir, the daytime flow through the turbines, electricity transmission to the national grid, and the return of water to the lower reservoir. You also note the key day/night contrast: water flows towards the station by day and is pumped back at night. However, some details are unclear or inaccurate: the intake is open by day and closed at night, but describing the “water pipe” as simply open or shut may confuse this with the intake; the generator is not operated “in the Morning” but during the day. The final claim that turbines are “available in the generator” misrepresents their relationship. A clearer overview of the two-way cycle and more precise stage descriptions would strengthen coverage.

Coherence and Cohesion: Band 6.0

The response has a clear overall arrangement: an introduction, a description of the reservoir and daytime flow, further details about the station and electricity distribution, and a concluding statement. Sequencing is generally understandable, and linking expressions such as “Moreover” and “In conclusion” help signal progression. However, the organisation is not always fully logical: the second paragraph introduces the intake and flow, while the next combines turbine operation, water storage, and electricity transmission in one long unit. Some references are also unclear, particularly “the remaining water,” which does not explain the water’s route, and “It shows,” whose reference is vague. Grouping the process into a clear daytime cycle and nighttime cycle, with more precise links between stages, would make the progression easier to follow.

Lexical Resource: Band 6.0

You use an adequate range of process vocabulary, including “high-level reservoir,” “reversible turbines,” “low-level reservoir,” “power lines,” and “national grid.” These terms help communicate the main components, and the meaning is generally clear. There are, however, several inaccurate or awkward choices that reduce precision: “water pipe” is less exact than “conduit” or “channel,” “shutdown” is not the best description of the intake, and “electricity is provided to the citizens” adds a detail not shown in the diagram. Spelling errors such as “gererator” and “depands” also affect accuracy. Aim for consistent technical terms and natural process collocations, such as “water is pumped back” and “electricity is transmitted to the grid.”

Grammatical Range and Accuracy: Band 5.5

You attempt both simple and more complex sentence forms, and most of the process remains understandable. For example, “Flow of water is towards power station from reservoir in the day time and flow is reversed during the night time” communicates the contrast, though it needs articles and more natural sentence structure. Some grammatical errors occur in agreement and sentence construction: “there is a reversible turbines” should be “there are reversible turbines,” while “The generator supply” needs “supplies.” The opening phrase “It demonstrates that how…” incorrectly combines “that” and “how.” Articles are also often missing, as in “towards power station” and “in the night time.” More consistent control of agreement, articles, and clause formation would improve accuracy while retaining your range of sentence types.

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

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