Promote the maintenance of an eco-friendly "ECO Inter"

-Active introduction of natural energy and energy-saving equipment-

May 27, 2010
East Nippon Expressway Co., Ltd.

NEXCO EAST (Chiyoda-ku, Tokyo), we are promoting environmentally-friendly efforts with the aim of becoming an "environmentally friendly Expressway" and "a Expressway that coexists with the roadside living environment and the natural environment."

In the future, we plan to utilize the natural energy generated by photovoltaic power generation for the new interchanges that we will construct, and actively incorporate energy-saving equipment in information boards and lighting fixtures to promote the establishment of an eco-friendly "ECO interchange". I will.

1 Specific equipment contents

(1) Solar power generation equipment Will be used for part of the daytime electricity used at the interchange.

  • Photovoltaic power generation will be introduced in consideration of location conditions and weather conditions.

(2) Energy saving equipment Will be installed.

Installation locationEquipment nameSpecifications, etc.
Road equipmentECO information boardPower saving information board using low power consumption LED
ECO signLED lamp used for internally illuminated signs*1
ECO road lightingUses a ceramic metal halide lamp*2 with high luminous efficiency
ECO gate lightingUses a ceramic metal halide lamp*2 with high luminous efficiency
Building equipment
(Fee Station)
Interior lightingUse LED lamp
Heat shield coated roof 
Insulation material/insulation sash 
  1. Internally illuminated signs have a mechanism in which a light source is placed inside the frame of the sign and self-luminesces, so that the figures and letters drawn on the surface of the material emerge from the transmitted light. Previously, fluorescent lamps were mainly used as the light source.
  2. Ceramic metal halide lamps have improved lamp life by changing the material of the arc tube of metal halide lamps used for night lights in gas stations and sports facilities from quartz to ceramic with less deterioration. .. Compared to the sodium lamp currently used as road lighting, it is a white lighting that is close to natural light and consumes less power.

2 CO 2 Reduction amount

According to a trial calculation at a typical ECO interchange that installs solar power, Approximately 20% reduction in power consumption at interchanges, CO 2 Reduced by about 15t per location per year To do.

3 ECO Inter maintenance schedule

In the future, all the newly established interchanges will be maintained as ECO interchanges, and we plan to complete two locations in FY2010 and four locations in FY2011. Also, for interchanges that are in service, we will gradually introduce energy-saving equipment as the equipment is renewed.

Scheduled for completionRoad nameInterchange nameAddressSolar power
2010Joshin-Etsu ExpresswaySaku Komoro JCT [tentative name]
(Komoro Mikage Toll Gate)
Saku City, Nagano Prefecture
Komoro City, Nagano Prefecture
Yes
Ken-O RoadIris Shiraoka IC [tentative name]Kuki City, Saitama Prefecture
Shiraoka Town, Minami Saitama District, Saitama Prefecture
Yes
2011Joban ExpresswayNamie IC [tentative name]Namie Town, Futaba District, Fukushima PrefectureYes
Haramachi IC [tentative name]Minamisoma City, Fukushima PrefectureYes
Soma IC [tentative name]Soma City, Fukushima PrefectureYes
North Kanto ExpresswayAshikaga ICAshikaga City, Tochigi PrefectureYes

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