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eng.building-energy-benchmark Calculator
Benchmarks building energy performance against CBECS median EUI by building type and climate zone. Buildings scoring in the bottom quartile of energy efficiency are the primary retrofit targets — EPA's ENERGY STAR programme awards certificates to the top 25%.
Inputs
Floor Area M2
Two-dimensional surface extent (m²). For complex shapes, break into simpler sub-shapes and sum.
Annual Energy Kwh
Capacity to do work (J or kWh). Conserved — converts between forms but total stays constant in a closed system.
Occupancy Hours Yr
Reference formula or conversion factor shown for context.
Building Type
Reference formula or conversion factor shown for context.
Results
EUI (kWh/m²/yr)
Reference formula or conversion factor shown for context.
vs benchmark (%)
Reference value for comparison — the industry standard, historical average, or target that this result is measured against.
energy intensity ratio
The proportional relationship between two quantities.
CO₂ emissions (tCO₂/yr)
Sample size or count used in the calculation.
benchmark EUI
Reference value for comparison — the industry standard, historical average, or target that this result is measured against.