Academic Writing Task 1 · process diagram

The process of generating and managing domestic electricity using solar panels

The diagram below shows how solar panels can be used to provide electricity for domestic use.

Summarise the information by selecting and reporting the main features, and make comparisons where relevant. Write at least 150 words.

How solar panels provide electricity for domestic use

1.Solar panels absorb sunlight and convert it into DC current
2.Inverter converts DC current into AC current and manages production
3.Electrical panel distributes electricity throughout the home
4.Utility meter tracks excess electricity flowing back to the grid
5.Utility grid supplies additional power when domestic demand exceeds solar production

Chart redrawn by BandLadder from the data in the original IELTS practice task. Many IELTS practice tasks come from the Cambridge IELTS series (Cambridge University Press & Assessment); all rights in the original tasks remain with their owners.

Band 8 sample answer

The provided diagram illustrates the mechanism by which solar panels generate electricity for residential consumption, highlighting the conversion process and the interaction between a home and the utility grid.

Overall, the system involves a sequence of five distinct stages, starting from the absorption of solar energy and culminating in the exchange of electricity with the external power network. The process ensures that homes can be powered by renewable energy while maintaining a reliable connection to the grid.

In the initial stage, solar panels installed on the roof capture energy from the sun, converting it into direct current (DC). This energy is then processed by an inverter, which transforms the DC into alternating current (AC) and regulates the electricity production. Once converted, the power is directed to the electrical panel, which serves as the central hub for distributing electricity throughout the house.

The final two stages involve the utility meter and the grid. If the solar system generates more electricity than the household requires, the excess power flows back through the utility meter into the grid. Conversely, if the home's energy demand exceeds the amount produced by the panels, the utility grid provides the necessary additional electricity to meet the shortfall.

200 words. Every figure in the answer comes from the chart above.

How to write about process diagrams

Say how many stages there are and where the process starts and ends.
Use the passive and sequencers: first, after this, once, finally.
Keep every stage; a missing step costs task achievement.

mechanism: a system or process for achieving a specific result
culminating: reaching a climax or the final point of development
bidirectional: functioning or moving in two opposite directions
consequently: as a result or effect of something mentioned earlier
shortfall: a deficit or failure to meet a required amount
regulated: controlled or maintained by a specific set of rules

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Frequently asked questions

What should the overview say?

The diagram illustrates a five-stage process where solar energy is captured, converted, and distributed for household use, with a bidirectional connection to the utility grid for surplus or deficit management.

How long should an IELTS Task 1 answer be?

At least 150 words; 170 to 200 is the safe range. Spend about 20 minutes on it and leave 40 for Task 2, which carries twice the marks.

How do I describe process diagrams?

Say how many stages there are and where the process starts and ends. Use the passive and sequencers: first, after this, once, finally. Keep every stage; a missing step costs task achievement.