Band 6.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 6.0 · Cambridge IELTS 12 · 2026-11-01

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)

This diagram illustrates the production of electricity using geothermal energy.

Overall, electricity is being generated using the steam. The steam drives the turbine, which then cause generator to product electricity.

The generation of electricity is in two parts. The first one is generating the steam from cold water. This major step have sub steps. So it starts by pumping down the cold water to hot rocks, best called as geothermal zone, this zone takes cold water as input, from the injection well and produces hot water as output from the production well. This hot water is then pumped up to condenser where this hot water is convertered to steam.

Once we have the steam, we can start the second part of electricity generation. This steam is passed to generation unit which is consisted of a generator and turbine. This steam is used to power the turbine, that will then power the generator to generate the electricity. After the generator generates the electricity, it's ready to be served.

AI examiner evaluation

Task Achievement / Task Response: Band 6.0

You identify the main stages and give a clear overview that steam drives the turbine and the turbine powers the generator. The account also correctly describes cold water entering the injection well, being heated in the geothermal zone, and returning through the production well. This covers the process, but some details are less fully or precisely reported: the diagram shows the wells extending 4.5 km underground, and the condenser is described as releasing steam, whereas your wording says the hot water is converted there. The final phrase, “ready to be served,” is vague and does not report the electricity transmission shown. Include these key details and keep the overview focused on the complete sequence.

Coherence and Cohesion: Band 6.5

The response has a clear overall arrangement: an introduction, an overview, and two paragraphs that divide the process into water heating and electricity generation. Sequencing phrases such as “It starts by” and “Once we have the steam” help the reader follow the stages. This logical progression is a strength. However, some links are mechanical or imprecise, including “So” and “This major step have sub steps,” and “This steam” is repeated several times in the final paragraph. The reference to the “generation unit” also makes the relationship between the turbine and generator less clear than it could be. Use more precise stage transitions and vary references while keeping each component’s role explicit.

Lexical Resource: Band 6.0

You use relevant process vocabulary, including “geothermal zone,” “injection well,” “production well,” “condenser,” and “turbine,” which gives the description an appropriate technical foundation. There is also some useful variation in phrases such as “pumping down” and “pumped up.” However, several word choices or forms are inaccurate or unnatural: “convertered” and “product electricity” are incorrect forms, while “best called as” and “ready to be served” do not express the intended meaning naturally. “Generation unit” is also less precise than naming the turbine and generator separately. Aim for accurate process collocations such as “is converted into steam” and “generates electricity”; this would make the adequate range more precise and controlled.

Grammatical Range and Accuracy: Band 5.5

You use a mix of simple and complex forms, including the relative clause in “the turbine, which then cause…” and the sequence clause “Once we have the steam.” The stages remain understandable despite some grammatical errors. Agreement and verb forms need more control: “the turbine…cause” should be “causes,” “This major step have” should be “has,” and “the hot water is convertered” needs a correct passive form, such as “is converted.” Articles are also missing in “power generator,” and the construction “is consisted of” is not grammatical. Review subject–verb agreement, passive structures, and articles, then proofread each sentence for these patterns.

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.