Building Energy Management System

BEMS

Name: BEMS - Building Energy Management System
Brand: Ninewatt

See building energy as data, manage it as cost

Collect and analyze building energy consumption data in real time, visualizing energy usage by source, purpose, and zone. Reduce energy costs and carbon emissions with AI-based forecasting and automated control integration.

Data Display & Monitoring

Display real-time energy data in SI units and trigger instant alarms when thresholds are exceeded.

✓Real-time building energy consumption data display (SI units)
✓Operator-defined thresholds and operating ranges
✓Baseline vs. actual performance comparison
✓Automatic alarm when thresholds or ranges are exceeded

Query & Comparison

View daily, weekly, monthly, and annual data in tables and graphs with cross-period comparison.

✓Period-based data query (tables, graphs)
✓Daily, weekly, monthly, annual views
✓Multi-period comparison (e.g., last year vs. this year)

Consumption Analysis

Multi-dimensional energy consumption analysis by source, purpose, and zone.

✓Energy source analysis (electricity, gas, district heating, etc.)
✓Primary energy conversion (TOE units)
✓Purpose-based analysis (cooling, heating, hot water, lighting, ventilation, plug loads)
✓Zone-based analysis (floor, area, tenant unit)
✓CO₂ emission analysis (carbon emission factor applied)
✓Energy Use Intensity (EUI) analysis (per area, per person)
✓Peak power demand analysis
✓Building energy efficiency assessment
✓Energy savings amount and rate analysis

Performance & Environmental Info

Monitor equipment status and provide integrated indoor/outdoor environmental data.

✓Equipment operating status (ON/OFF, valve position, etc.)
✓Equipment performance & efficiency (COP, etc.)
✓Outdoor temperature and humidity
✓Indoor temperature and humidity
✓Indoor CO₂ concentration
✓Indoor illuminance (sensor-linked)

Forecasting & Cost Analysis

Pattern-based energy consumption forecasting and tariff-specific cost analysis.

✓Energy consumption forecasting (historical pattern-based)
✓Energy saving and operation guidelines
✓Tariff plan selection
✓Energy unit cost adjustment (rate change response)
✓Period-based energy cost inquiry
✓Estimated energy cost inquiry

Control Integration

Automated control through native control or BAS integration.

✓Native or BAS-linked automatic control
✓Schedule-based operation control
✓Optimal start/stop control

Data Processing Pipeline

From sensors to dashboard — a 4-stage data processing architecture

Data Acquisition

Direct communication with meters & sensors
FMS (Facility Management System) interface
BAS (Building Automation System) interface
AMR (Automatic Meter Reading) interface

Data Transmission

Fieldbus (BACnet, LonWorks, Modbus)
USN wireless network (Zigbee, etc.)
Network equipment (Gateway, Router)
TCP/IP-based network

Data Collection

Central server delivery and collection
Communication error check (transmission verification)

Management & Utilization

Stored data available at all times
Processed at 15min/30min/1hr intervals
Data processed into actionable information

Energy Use Classification

Building energy is categorized by use for precise analysis

HVAC & Hot Water

Heating

Energy for building heating including humidification

Cooling

Energy for building cooling including dehumidification

Ventilation & Air Circulation

AHU, fan coil, heat recovery ventilator, exhaust fan, etc.

Hot Water

Energy for hot water supply (bathing, laundry, washing)

Lighting & Plug Loads

Lighting

Interior and exterior lighting energy

Plug Loads

PCs, office equipment, appliances, etc.

Building Transport

Elevators, escalators, and other transport systems

Other Uses

Auxiliary Equipment

Water supply/drainage pumps, sewage treatment, etc.

Cooking

Gas/electricity for kitchen and food preparation

Refrigeration

Food storage and refrigeration equipment

IT Systems

Server rooms, data centers, precision cooling, etc.

Special Purpose

Medical equipment, swimming pool facilities, etc.

Expected Benefits

15–30%

Energy cost reduction

Real-time

Anomaly detection & alerting

CO₂

Quantitative carbon management

24/7

Non-stop energy monitoring

Ideal for these buildings

Large Commercial Buildings

Office buildings, shopping malls, and mixed-use complexes with high energy consumption

Public Facilities

Government offices, schools, and libraries with energy reduction mandates

Hospitals & Medical Facilities

24/7 operations with high energy use and critical indoor environment requirements

Industrial & Logistics

Factories, data centers, and warehouses requiring peak management and equipment optimization

Manage your building energy with data

Reduce energy costs and move closer to carbon neutrality with BEMS.