In Writing Task 1, the examiner evaluates your ability to summarize, describe, and compare data objectively. The 2026 forecast includes several variations of the “Global Energy Transition” theme. This guide focuses on a line graph depicting the percentage of renewable energy usage in five distinct regions from 2020 to 2025.
The line graph below shows the percentage of total electricity generated from renewable sources in five countries between 2020 and 2025.
Summarize the information by selecting and reporting the main features, and make comparisons where relevant.

1. Analysis
Success in Task 1 depends on your ability to identify the overall trend. In this dataset, there is a clear upward trajectory for all countries, though the rate of acceleration varies significantly. You must group your data logically: avoid describing every single data point, as this leads to a lower score for “Task Response.”
2. Planning
- Introduction: Paraphrase the prompt. Replace “shows” with “illustrates” or “delineates.”
- Overview: State the general trend (growth in renewables) and identify the top/bottom performers (e.g., Country A leads, Country E lags).
- Body Paragraph 1: Compare the high-growth nations (e.g., Germany and China).
- Body Paragraph 2: Describe the slower or more plateaued growth in other regions (e.g., USA and Brazil).
3. Band 9.0 Model Answer
The provided line graph delineates the proportion of electricity produced from renewable resources in five specific nations over a six-year period, commencing in 2020.
Overall, a unidirectional upward trend was observed across all surveyed countries, reflecting a global shift toward sustainable energy. Germany consistently emerged as the frontrunner, while Brazil, despite starting at a lower baseline, exhibited the most pronounced acceleration in its green energy transition by the end of the period.
Regarding the leading nations, Germany began the decade with approximately 40% of its power sourced from renewables, a figure that gradually climbed to reach a peak of 55% in 2025. China followed a similar trajectory, though it started at a lower 30%. However, China’s growth was more exponential, eventually surpassing 45% by the final year, narrowing the gap with Germany.
In contrast, the United States and India showed more modest gains. Both nations hovered around the 20% mark in 2020. While the US saw a marginal increase to 28% by 2025, India’s growth was more sporadic, ending the period just shy of 25%. Brazil, meanwhile, witnessed a significant surge starting in 2023, jumping from 15% to 35% in just two years, thereby overtaking both the US and India in its renewable output.
4. Highlight Vocabulary
- Delineates /dɪˈlɪn.i.eɪts/ (v): To describe or portray something precisely.
- Unidirectional (adj): Moving or operating in a single direction.
- Pronounced acceleration (collocation): A very noticeable increase in speed.
- Hovered around (v): To remain at or near a particular level.
- Marginal increase (collocation): A very small or slight increase.
- Sporadic /spəˈræd.ɪk/ (adj): Occurring at irregular intervals or only in a few places; scattered or isolated.