The line graph compares electricity consumption across a typical winter and summer day in England, and the pie chart illustrates the proportion of household electricity usage by purpose.
Overall, electricity demand is significantly higher in winter than in summer, and usage fluctuates more dramatically throughout the day in winter. In terms of household consumption, over half of the electricity is used for heating rooms and water.
In winter, electricity demand begins at around 35,000 units at midnight and rises sharply to a peak of approximately 40,000 units at 9:00. It then declines steadily to roughly 30,000 units by about 15:00 before climbing again to its highest point, peaking at about 48,000 units at 21:00. After this late-evening surge, demand falls noticeably to around 33,000 units at midnight.
By contrast, summer consumption is much lower and more stable. Demand starts at roughly 18,000 units at midnight, dips slightly to around 12,000-15,000 units between 6:00 and 9:00, and then rises to a daily high of almost 20,000 units at 13:00. Unlike winter, electricity use remains relatively steady throughout the afternoon and evening, ending at just under 20,000 units at midnight.
The pie chart indicates that heating rooms and water represents by far the largest share of domestic electricity usage, accounting for 52.5%. Kitchen appliances, including ovens, kettles and washing machines, constitute 17.5%, followed by lighting, television and radio at 15%. The smallest proportion, also 15%, is used for vacuum cleaners, food mixers and other electrical tools.