IELTS Reading main_idea Practice
According to the passage, what is the core concept of Vehicle-to-Grid (V2G) technology?
Question type: multiple choice · Difficulty: advanced
- A. It allows EVs to charge wirelessly from the grid.
- B. It prioritises charging for commercial vehicles over private ones.
- C. It turns EVs into mobile energy storage units that can support the grid.
- D. It is a system for tracking EV energy consumption for billing.
Explanation Preview
Paragraph C explains V2G by stating: 'it can also discharge... energy back into the grid... In essence, a parked and connected EV... becomes a mobile battery, a distributed energy resource'. This perfectly matches the description in option C.