• In 2024, the commercial sector used 16.45 quads of energy, 17% of the U.S. total, a 64% increase from 1980.
  • In 2024, U.S. commercial buildings spent over $241B on energy. Space heating and cooling accounts for 21% of commercial energy use.
  • Operation accounts for 80–90% of a building’s life cycle energy consumption, vs. 10–20% for construction.
  • A University of Michigan campus building with a 75-year lifespan used more energy in under 2.5 years of operation than was used in its material production and construction combined.

Source: https://css.umich.edu/publications/factsheets/built-environment/commercial-buildings-factsheet