iEMS
(intelligent Energy Management System)

About iEMS?

iEMS, the intelligent energy management service comprises a consolidated energy management system (IEMU)for optimal energy utilization and information analysis solution according to usage pattern; it is a system enabling efficient and active saving and monitoring through a UI maximizing user convenience,.

 

iEMS Organization

 

iEMS Installation Targets

– Buildings with high energy usage such as public institutions, companies, plants, schools

 

Advantages of iEMS

  • User-oriented web environment

    User can perform energy management regardless of location; remote control possible

    Monthly energy usage report

    Minimizes \unnecessary energy waste by providing periodic energy diagnostics report

    Fast A/S action through monitoring center

    Upon system error, the monitoring center automatically manages the system to provide convenience to the user

    Real-time energy alert solution system

    Email / SMS 1:1 notification provided when abnormal energy usage is detected

 

Use of iEMS

  • Revenue generation

    Creating revenues through energy incentives by participating in ADR market

  • Easy management

    System easily accessible by nonexperts through easy energy management functionalities

  • Cost saving

    Saving maintenance costs through continuous A/S

< Consolidated building energy management >

BEMS (Building Energy Management System)

Optimal use of energy

Monnitors the used amount of energy in real time, identifies unnecessary usage points to minimize waste; identifies the consumption status by energy type and purpose by analyzing past energy use pattern and establishes an energy action suitable for the building.

Maximum energy control

Saves electricity fees by maintaining appropriate temperature through cooling/heating device control in summer/winter and managing the peak power.

Energy saving through lighting control

Saving electricity costs through high efficiency LEDs.

 

BEMS application example (Dongguk University Gyeongju Campus)

Category Dongguk University
Gyeongju Campus
Saved amount
(kWh)
1,412,467
Saving rate
(%)
15.19
Yearly energy use amount
(TOE, 0.215)
303.68
Yearly carbon emission amount
(TCO2, 0.4653)
657.22
Saved amount
(unit: 1 million KRW)
87
Initial investment amount
(unit: 1 million KRW)
197
Recovery period
(years)
2.25
Category Saved amount
(kWh)
Saving rate
(%)
Yearly energy use amount
(TOE, 0.215)
Yearly carbon emission amount
(TCO2, 0.4653)
Saved amount
(unit: 1 million KRW)
Initial investment amount
(unit: 1 million KRW)
Recovery period
(years)
Dongguk University
Gyeongju Campus
1,412,467 15.19 303.68 657.22 87 197 2.25

< Consolidated plant energy management >

FEMS (Factory Energy Management System)

Real-time monitoring of power consumption amount and efficient management of power usage

Minimize work standby time of melt ,work and holding furnaces and process volume contgol

Wastewater concentration using recovered waste heat and centralized process monitoring

LED lighting adoption, illumination control considering ambient brightness and centralized lighting control using smart switches

Perform real-time monitoring on customer’s electricity usage amount through consolidated energy management system to manage peak power and efficiently manage electric energy

Full-time monitoring using smartphone or smartpad by linking comprehensive energy management system with IT functionalities

 

FEMS Application Areas

Melting furnace part

– Introduce PERT/CPM copncept on production maangement/control platform to designate the melting furnace’s work start time and order work to the worker to optimize fuel use by reducing unnecessary waiting time
– Fuel gauge installed to enable remote management of entered fuel amount and manufacturing schedule

Holding furnace(work furnace, standby fornace) part

– Temperature control of main casting furnace and standby furnace , tapping management and work schedule are controlled at the center;production is real-named and quantified by identifying work amount count, worker, and work time through worker ID recognition

Lighting part

– Latch relays are applied on the plant ward’s switchboard and smart switches on the office ward for remote monitoring of lighting status; energy is saved through schedule control, indoor presence sensing, illuminance control according to ambient brightness etc.

Cooler/heater part

– Performs indoor presence control by human body sensing through microwave sensor and manages maximum power through peak control on coolers/heaters by coordinating with consolidated energy management device

 

FEMS application example (Oriens Co.)

< Consolidated energy management for educational/government institutions >

EMS(consolidated energy management system) for education/government institutions

An energy savings system that can immediately control the used amount and maximum wattage through remote control by monitoring the wattage and fees used by power loads such as coolers, heaters and air conditioners in real time.

Expected effects

1. Induce change in energy usage pattern by controlling the target amount changing in real-time

2. Self- diagnostics and savings effect through remote monitoring and control

3. Induce the optimization of energy use

4. Round-the-clock mana7ement possible by supporting mobile environment through app

Saving cases(Educational institutions)

Load subject to control

– Ceiling mounted system air conditioners 60ea X 4kW = 240KW

– Stand type air conditioners 15ea X 4kW = 60KW

– Total 300kW

Saving effect

Field name OOHigh School
Before installation:PEAK
(kW)
450
After installation:PEAK
(kW)
345
Savings PEAK
(kW)
105
Yearly saved amount
(thousand KRW)
9,282
Investment amount
(thousand KRW)
17,200
Payback period
(years)
1.85
Field name Before installation:PEAK
(kW)
After installation:PEAK
(kW)
Savings PEAK
(kW)
Yearly saved amount
(thousand KRW)
Investment amount
(thousand KRW)
Payback period
(years)
OOHigh School 450 345 105 9,282 17,200 1.85

Calculation of saved amount

– Saved peak(105kW)X Basic fee(5,844 KRW)X12 months = 7,363,000 KRW

– Saved usage fees = 1,919,000 KRW

– Saved amount = 9,282,000 KRW/year

Applied load

– Centralized cooling/heating system

– Air conditioner

Saving case(governmental institution)

Load subject to control

– Stand type air conditioner 40ea X 4kW = 180kW

Field name OOCity Hall
Before installation:PEAK
(kW)
720
After installation:PEAK
(kW)
630
Savings PEAK
(kW)
90
Yearly saved amount
(thousand KRW)
9,747
Investment amount
(thousand KRW)
17,978
Payback period
(years)
1.84
Field name Before installation:PEAK
(kW)
After installation:PEAK
(kW)
Savings PEAK
(kW)
Yearly saved amount
(thousand KRW)
Investment amount
(thousand KRW)
Payback period
(years)
OOCity Hall 720 630 90 9,747 17,978 1.84

Calculation of saved amount

– Saved peak (90kW)X basic fee (7,572KRW)X12 months = 8,177,760 KRW

– Saved usage fees = 1,570,000 KRW

– Saved amount = 9,747,760 KRW/year

Applied loads

– Ceiling type systems, coolers/heaters

– Coolers ,air conditioners ,pumps

– Ventilators,fans