A solar panel array generates 250 watts per square meter. If a building roof has an area of 40 square meters, how much energy in kilowatt-hours is generated in 5 hours?

Sun, 03 May 2026 14:17:40 +0000

--- **Businesses and homeowners across the U.S. are increasingly calculating solar potential—and for good reason. A solar panel array generating 250 watts per square meter means a 40-square-meter roof can produce meaningful clean energy over time.** With rising electricity costs and growing access to affordable solar technology, this calculation is no longer niche. Understanding actual output helps users make smart investments in energy independence and long-term savings. Let’s explore how energy generation from a solar array is quantified—and why 250 watts per square meter is a critical benchmark in solar planning. ### Why 250 Watts per Square Meter Matters in Solar Energy