雅思听力

🎧 Listening Transcript

Today in our environmental science lecture, we're discussing renewable energy sources. One key point is that solar panels are most efficient in regions with high sunlight, but their production can be energy-intensive. Wind turbines, on the other hand, have a lower carbon footprint once installed, but they require consistent wind speeds. Interestingly, a recent study found that offshore wind farms generate up to 40% more electricity than onshore ones due to stronger and more stable winds. However, maintenance costs are higher because of saltwater corrosion. So, while solar is cheaper to install, wind offers greater long-term energy output per unit, especially offshore.