Band 5.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 5.0 · Cambridge IELTS 12 · 2026-09-14

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 PROCESS ILLUSTRATES THE STAGES OF HOW ELECTRICITY IS PRODUCE FROM THE GEOTHERMAL ENERGY.

OVREALL, THERE ARE TOTAL FIVE STEP IN THE PROCESS. AND IT START WITH STORING OF COLD WATER IN UNDERGROUND SURFACE AND ENDS WITH STEAM CONVERT INTO ENERYG BY THE HELP OF GENERATOR.

FIRSTLY, THE PROCESS BEIGNS WITH COMSUPTION OF COLD WATER INTO THE SOIL. IN THE NEXT STEP, ONE PUMPED DOWN IN THE SOIL WHICH IS 4.5 KM GOES DEEPAND WATER IS PASS FROM THAT PIPE. IN ADDITION, THE WAHTER IS GOES FROM THE HOT ROCKS WHICH IS ALSO CALL THE PRODUCTION WELL.

MOREOVER, ON OTHER SIDE THER IS ALSO ONE PIPE INSERT IN SOIL CALLED PUMPED UP/ FROM THAT PIPE WATER IS CHANGE IN THE CONDENSER IN THE AIR AND BECOME A STEAM. NOW STEAM IS PROVIDE ENERGY WITH THE HELP OF GENERATOR WHICH IS POWERED BY STEAM. AND FINALLY THE ENERGY IS PRODUCED BY THE GEOTHERMAL POWER.

AI examiner evaluation

Task Achievement / Task Response — Band 5.0

The response attempts to cover the main features of the geothermal energy diagram, noting the general flow from cold water storage to steam generation. However, the explanation is disjointed and contains significant inaccuracies regarding the process, such as confusing the injection well with the production well and misinterpreting how the condenser and generator function. The overview is overly simplistic, stating there are 'five step' without accurately summarising the broader cyclical nature of the process. While key parts of the diagram are mentioned, the lack of accurate detailing and logical development places this response at Band 5.0.

Coherence and Cohesion — Band 5.0

The response shows some basic attempts at organisation, using sequence markers like 'FIRSTLY', 'IN THE NEXT STEP', and 'FINALLY'. However, paragraphing is poorly managed, with the text compressed into an introduction and a single massive block that mixes disparate steps. Cohesive devices are frequently mechanical or misused, as seen in 'MOREOVER, ON OTHER SIDE THER IS ALSO ONE PIPE...', which disrupts the natural flow of information. Referencing is often unclear, leaving the reader confused about which pipe or stage is being discussed. Overall progression is weak, warranting a Band 5.0.

Lexical Resource — Band 5.0

The vocabulary used is very basic and heavily repetitive, relying on everyday words such as 'water', 'pipe', 'soil', and 'energy'. There are numerous word choice and spelling errors throughout the text, including 'PRODUCE' instead of produced, 'OVREALL' instead of overall, 'COMSUPTION' instead of consumption, and 'ENERYG' instead of energy. Less common lexical items are attempted ('production well', 'condenser', 'generator'), but inaccurate usage and pervasive spelling errors impede comprehension at times. This lexical control aligns with a Band 4.5, which is rounded to 5.0 based on standard band parameters.

Grammatical Range and Accuracy — Band 4.0

The text displays a very limited range of grammatical structures, consisting mostly of simple and attempted complex sentences that are severely flawed. There are frequent, heavy grammatical errors, such as 'HOW ELECTRICITY IS PRODUCE' (passive voice error), 'WATER IS PASS FROM THAT PIPE' (missing auxiliary/verb form), and 'STEAM IS PROVIDE ENERGY'. Punctuation is also problematic, particularly with excessive capitalization and missing periods. These constant errors cause significant difficulty for the reader and reflect Band 4.0 standards.

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

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