Mixed Bar and Pie: Electricity Generation vs Use Report (Band 9)
Band-9 Task 1 mixed report on electricity generation bars plus consumption pie, with supply-demand linkage and energy vocabulary.
The bar chart shows electricity generation by source and the pie chart shows consumption by sector. Summarize the information by selecting and reporting the main features.
Band-9 sample report
The visuals map electricity from origin to end-use: coal-dominated supply feeding industry-led demand.
Overall, coal generates over half of all power while industry consumes the largest single share. Renewables contribute modestly to supply; households consume modestly of demand — symmetry at the margins, concentration at the core.
Generation is starkly carbon-heavy. Coal produces 55% of electricity, more than gas (20%), nuclear (12%), hydro (8%), and renewables (5%) combined. The top two fossil sources alone deliver three-quarters of supply; clean sources — nuclear, hydro, renewables — total just a quarter. Decarbonizing supply means displacing coal first and overwhelmingly.
Consumption concentrates differently. Industry absorbs 38%, trailed by households at 27%, services at 22%, and transport at 13% — the only small slice, reflecting oil's continued grip on vehicles. Notably, industry's share roughly mirrors coal's: the dirtiest supply feeds the heaviest user, an alignment that targeted industrial electrification plus clean generation could break together.
Supply and demand tell one story: a coal-industry axis powers the economy while cleaner sources and lighter users orbit the edges. Shift both centers — generation and industry — and the system transforms.
(199 words)
Why this scores Band 9
Task Achievement (9): Overview links supply to demand (coal-industry axis) before detailing each visual. Generation detailed by source shares; consumption by sector shares; synthesis connects them.
Coherence & Cohesion (9): Supply paragraph, demand paragraph, axis synthesis. "At the margins/at the core," "orbit the edges" sustain structural metaphor.
Lexical Resource (9): Energy-systems precision: "end-use," "carbon-heavy," "clean sources," "oil's grip," "electrification," "axis." Confident domain language.
Grammatical Range & Accuracy (9): Colon-led findings, em-dash qualifications, parallel closes. Exact.
Vocabulary to steal
- origin to end-use — supply-demand arc
- symmetry at margins — balanced edges
- displacing coal first — priority prescription
- oil's grip on vehicles — fuel lock-in image
- orbit the edges — peripheral role metaphor
- shift both centers — dual-transformation close
FAQs
Supply vs demand charts: what is the link?
Compare shares: does the biggest source serve the biggest user? Match-or-mismatch between supply mix and demand mix is the insight.
Units differ (TWh vs %): problem?
No — describe each in its own units, then compare proportions qualitatively. Never force-convert; report each faithfully.
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