Sustainability
The green alternative
CO2 equivalent
Unit used in greenhouse gas accounting
Emissions of a given greenhouse gas measured in CO2 equivalents is an expression of how much CO2 is required to produce the same amount of warming
GWP
Global warming potential.
An expression of how strong the greenhouse gas is. The GWP for CO2 is defined as 1. Methane has a GWP of 25 and nitrous oxide has 298.
EPD
Environmental Product Declaration.
The International Standard for Environmental Declarations EPD summarizes the environmental profile of a component, a finished product, or a service in a standardized and objective manner.
Environmental declaration
Technical Rooms
Access / Escape Tunnels
Parking Facilities
Cable & Pipe Tunnels
Data Storage
Archive
Phone Systems
Power plants
Oil and gas storage
Storage of ammunition and explosives
Oil and gas storage
Storage of nuclear waste
Mines
Drainage and drinking water facilities
Military technical installations
Military hospitals
Civil defense facilities
Sports facilities
Swimming pools
Cold storage for food
Tunnels and transportation
Tunnel vault
Technical rooms
Access - / Escape Tunnels
Cable Tunnels
Portals – internal and external
Membranes
Tasks & Challenges
Waterproofing, drainage, and frost protection
Optimal working conditions for personnel - HSE
Ventilation, control of temperature and humidity
Protection and optimal operating conditions for technical equipment
Lighting, acoustics, and information
Hanging solutions for mounting technical equipment
Environmental declaration
An EPD (Environmental Product Declaration) is a concise third-party verified and registered document with transparent and comparable information about the environmental performance of products throughout their lifecycle.
Both the underlying LCA (Life-Cycle Assessment) and EPD are always based on international standards.
The EPD is prepared for WG Tunnelduk by Sintef Byggforsk – and covers LCA module phases A1-C4.
Declaration standard: CEN Standard EN 15804
WG Tunnelduk GWP compared to other products/solutions for water and frost protection
Good operating conditions and optimal lifespan for technical equipment
Reduced Life Cycle Cost
Greater flexibility and usability of the rock chamber
Reduce CO2 emissions by using WG tunnel fabric
In the example, we compare WG Tunnelduk with full casting regarding CO2 equivalents
Full casting is the option for water/frost protection that currently provides the highest CO2 emissions.
The comparison is made for an area of 100,000 m2 - which corresponds to one of our projects delivered in Norway.
To illustrate the environmental impact of choosing WG Tunnelduk, we use emission figures from passenger car traffic in Norway 2019
The average emissions of passenger cars (data from April 2019) is 67 g/km
The average annual mileage for passenger cars is set to 15,000 km
The difference in CO2 emissions between WG Tunnelduk and full casting is approximately 12,700,000 kg CO2 equivalents for 100,000 m2 - in favor of WG Tunnelduk
12,700,000 kg CO2 equivalents corresponds to the total CO2 emissions from about 12,600 passenger cars - in 1 year!
Spart CO2 emissions for passenger cars in one year
About 12,600 cars
(15,000 km average travel distance)
Spart CO2 emissions for passenger cars in one year
About 12,600 cars
(15,000 km average travel distance)