What is the approximate value of solar energy received at the Earth's surface?

The approximate value of solar energy received at the Earth's surface is close to 1000 W/m² when the sun is directly overhead at noon in clear weather conditions. This value can fluctuate based on several factors such as latitude, season, atmospheric conditions, and time of day. However, the figure 1360 W/m² represents the solar constant, which is the average solar energy received per unit area at the outer edge of the Earth's atmosphere, not at the surface itself.

While solar energy values at various moments and locations can be lower, the other choices presented do not accurately reflect the average solar energy hitting the Earth's surface under optimal conditions. Thus, while the correct answer approximates the amount of energy available for conversion by solar panels and other technologies, it is important to understand that variations can occur due to real-world conditions.