A Building Energy Management System, or BEMS, organizes building energy information for review. DigitechX BEMS presents building, floor and meter data with comparisons and reports. The useful question is not simply which building uses most electricity, but whether its use matches its size, purpose and operation.
Define what each building total includes
Build a meter-to-building register before creating a comparison. Shared cooling, tenant loads and common areas can make two apparently similar totals represent different boundaries.
Record the coverage
List the building, floor, meter and shared equipment included in each figure.
Keep context beside consumption
Maintain area, building use, occupancy and operating schedules, with dates when these characteristics change.
Use comparable periods and useful indicators
Energy use intensity relates energy to an appropriate size or activity measure. A per-area indicator adds context, but building type and operating conditions still affect interpretation.
Start with a consistent period
Use matching dates and complete data. An office month should not be compared directly with a workshop's partial month.
Avoid an unfair ranking
A smaller office open during business hours is not a direct efficiency benchmark for a continuously operated facility.
Sources: [2]
Turn the comparison into a specific inspection
Compare a building with its own history, a relevant target or genuinely similar buildings. Then investigate the period and location that explain a difference.
Illustrative investigation
If one office floor's use remains high after occupancy ends, review its schedule and shared loads before proposing an adjustment.
Track the outcome
Record the finding and approved action, then review another comparable period to see what changed.
Sources: [3]
Frequently asked questions
Is BEMS the same as automatic BMS equipment control?
The scope varies by system. DigitechX BEMS focuses on energy information and reports; automatic equipment control requires a separate scope assessment.
Can we compare buildings with only their electricity bills?
Bills are a useful start, but check dates, coverage and building characteristics before treating the totals as comparable performance.
See building, floor and meter information together
Explore DigitechX BEMS comparisons and reports. Bring a building list and meter coverage map to assess which comparisons your current data can support.
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References
- U.S. DOE FEMP: Energy Management Information System Capabilities
- ENERGY STAR: What is Energy Use Intensity?
- ENERGY STAR: Analyze Benchmarking Results
- DigitechX Building Energy Management System
Information and sources reviewed: 8 October 2026