Environmentally Friendly StationsThe Osaka “Eco Station” and Management Techniques

West Japan Railway Company

Shigeki Naka

Agenda

1. Overview of JR-WEST

2. Osaka Station City as “Eco Station”

3. Action for eco-station realization

・ Analysis of electric power consumption in the station

・ Visualization of electric power consumption in the station

・ Daylight simulation

・ Thermal environment simulation

・ Creating Guidelines for Eco Station Design

Overview of JR-WestOverview of JR-West

OkayamaOkayamaHiroshimaHiroshima

HakataHakata

No. of CarsNo. of Cars 5,636 cars5,636 cars

Ordinary railwaysOrdinary railways

Sanyo-ShinkansenSanyo-ShinkansenOperating km:Operating km:　　 644.0 km644.0 km

No. of CarsNo. of Cars:: 1,045 cars1,045 cars

Operating km:Operating km: 4368.7 km4368.7 km

(Data 2012.4.1 ）

JR-WEST JR-EAST

JR-CENTRAL

JR-FREIGHT JR-SHIKOKU

JR-KYUSYU

JR-HOKKAIDO

Shin‐OsakaShin‐Osaka

OsakaOsaka

KanazawaKanazawa

Osaka Station CityOsaka Station CityOsaka is core station in west Japan area

Tokyo

Kyoto

Osaka

Number of Users: approx. 800,000/day

Open 1874Rebuilt 2004 – 2011Reopening May,2011

Environmentally Friendly

Solar panel

Roof top gardenRoof top planting

Rain Water recycling system

Dry mist

Roof top garden

Energy saving buildings

Use external light

Waste recycling

Energy Saving Buildings

High performance facilities

To reduce the impact of the afternoon sun, elevators and toilet are located on the west side.

Low-e glass

Dry air

outerinner

Spacer containing desiccant

Metal coating

- Lighting using daylight

- Motor roll screen (lobby window)

Office floor

Solar Panel (total 133kW)

South Gate Plaza: 　Solar Panel (4.16kW)

Platform roof : 　Solar Panel (103kW)

Access to parking: 　Solar Panel (26kW)

Solar and hybrid generation

Solar generation

Batteries charged from solar panels (84W), and used for night lighting.

Batteries charged fromhybrid generators (solar 84W, wind 64W), and used for night lighting.

Hybrid generation (Rooftop garden) (Rooftop planting)

The Use of Natural Energy

Recycled water70%

870m3/day

Rain water

tap water

Rainwater and recycled water use to flush the toilets

Basement storage tank

Effective Use of Water

Rooftop garden and green wall

North Gate Building: 1,741m2

South Gate Building: 414m2

Total Green Area

To reduce heat island effect, lots of green is arranged.

Rooftop Gardening

Waste is separated into 20 different classifications in the buildings.

Waste generated daily is separated into 20 different classifications and 17 of these items are recycled.

17 items: Recycle

2 items: Thermal Recycle

Food, fish, oil, polystyrene form, news paper, magazine, copy paper, cardboard, etc.

Food waste, other burnable trash

1 items: LandfillOther non-burnable trash

Recycling of the Waste

Agenda

1. Overview of JR-WEST

2. Osaka Station City as “Eco Station”

3. Action for eco-station realization

・ Analysis of electric power consumption in the station

・ Visualization of electric power consumption in the station

・ Daylight simulation

・ Thermal environment simulation

・ Creating Guidelines for Eco Station Design

Analysis of Electric Power Consumption in the Station

StationOmi-

hachiman Station

Nada

Station

Okubo

Station

Kusatsu

Station

Okayama

Station

Number

of Users [thousand/

day ]

３４ ４４ ２８ ５５ １１８

Electric power

consumed [kWh/day]

921 1,063 933 2,493 5,721

Measurement Station

（ Data 2012.4.1 ）

Lights inStation home

Lights in Station buildingVending machine and

Ticket vending machine

elevator

escalator

Air-conditioning equipment

Electric water heater

36%

17%

Okubo Station 【 933kWh/day】

9%2%

10%

13%

2%

other

11%

Common features of Each station!

Electric power of lights accounts for about half of all power consumed.

Analysis of Electric Power Consumption in the Station

Measure Point Data Center

Data

3G

Linux box

Multi circuit meter

3G/WiMAX Router

User / Manager

Smart phone

TabletPC

Data collection server

The Internet

System for the Visualization

System for the Visualization of Electric Power Consumption

This has helped us to chart on an hour by hour basis.

Daylight Simulation

Fig. Simulation Result

Fig. Actual measurement value after completion

Almost identical!

Thermal Environment Simulation

Before

Settsu-Motoyama Station

Increase in temperature(outside temperature +6 degrees)

After

Temperatures have not risen

Creating Guidelines　　　　 for Eco Station Design

Main Contents of Guidelines

Illumination criteriaan idea for illumination at lighting areas in the stationan idea for selecting energy-saving lightning appliancean idea for energy-conservation of escalators

and air-conditioning equipment, etc.

Electricity edition

Water edition

an idea for selecting energy-saving apparatusan idea for utilizing rainwater and sump water, etc.

Thank you　　　 for your attention !

E-mail: shigeki-naka@westjr.co.jpE-mail: shigeki-naka@westjr.co.jp