Energy Consumption – Life Cycle Inventory Results Graph by Life Cycle Stages

This graph displays absolute primary energy consumption by fuel type for each life cycle stage inclusive of structural and envelope effects as well as annual operating energy. The graph also displays the absolute primary energy consumption total for the project by life cycle stage. Please note that the Y axis of this graph is a logarithmic scale, in order to make all results readable.

The Athena Sustainable Materials Institute (ASMI) is set to publish the first North American Environmental Building Declaration (EBD) according to European Committee for Standardization's standard dealing with sustainability of building construction, EN 15804/15978, and in the interest of standardization across building product categories, we have incorporated EN 15804/15978 into the Impact Estimator's results starting wiht v4.2.0208 (April 2013). This means redefining our life cycle stage tables and graphs. It is mostly a change in nomenclature and a re-arrangement of our previous life cycle stage columns, the total results do not change. One change is that some results from the Product/Material stage (previously Manufacturing/Material) have been shifted to the Construction Process/Construction Installation Process stage. Previously, all calculated materials, including the construction waste allowances were reported in the Manufacturing stage, but now the calculated material totals will be reported in the Product/Material stage and the construction waste allowances will be reported in the Construction Process/Construction Installation Process stage.

EN 15804/15978 requires the reporting of a specific set of environmental indicators according to a modular format of the life cycle of building products or constructed works including four stages, (Product, Construction Process, Use, End of Life) and each stage is comprised of "information modules", the modules compare roughly to our previous Material and Transportation columns and are defined below (the corresponding EN15804/15978 module appears in brackets).

Life Cycle Stage Definitions:

Product:

Material (Raw Material Supply (A1), and Manufacturing (A3))

Transport (A2).

Construction Process:

Construction Installation Process (A5)

Transport (A4)

Replacement:

Replacement Manufacturing, which includes manufacture of replacement materials and on site construction energy (B2, B3, B4,B5)

Transport , which includes manufacturing transportation, construction transportation of replacement materials and disposal transportation of replaced materials (B2, B3, B4,B5)

Operational Energy:

Annual Operational Energy Use (B6)

End of Life:

Material, which includes demolition (C1)

Transport, transport of materials to landfill (C2)

 

Fuels:

Coal:

Coal

Diesel:

Diesel Fuel

Gasoline:

Gasoline

Nuclear:

Uranium energy in electricity generation

Hydro:

Hydro electricity

Feedstock Fuels:

Includes all economically fuels used as raw material in the production of products (e.g., crude oil, natural gas, metallurgical coal, etc.).

Heavy Fuel Oil:

All Fuel Oils

Hydro:

Hydraulic energy used in the production of electricity - is not included in primary fuel total.

LPG:

Liquid Propane Gas

Natural Gas:

Natural Gas

Wood:

Wood residues and by-products used to generate energy.

 

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