Commercial Energy Use – Significance and Magnitude

The amount of energy consumed in the commercial sector often must be estimated as a fraction of energy use in the combined residential and commercial sectors; national energy use in buildings is often tracked within the major sectors, categorized as industrial, transportation, and ‘‘other,’’ with residential and commercial buildings aggregated and accounting for most of the energy use in this ‘‘other’’ sector. Thus some quick checks on world total energy consumption are useful. The units used to sum world energy use are not easily comprehended by most people, so the important knowledge to retain is the relative values. (more…)

Future Energy Use and Performance

Current forecasts call for solid growth in world energy use over the next 20 years, potentially increasing 60% above current energy use. With the forces in place to keep energy use patterns the same, a safe, conservative assumption would be that the commercial sector will contribute about 12% to final total energy consumption in the year 2020. (more…)