Tool summaryName of the tool Sustainable Process Index (SPI) Description of the tool SPI aims to calculate the total area that is necessary to embed an industrial process sustainability into the biosphere and to relate this area to the units of product (or service) provided by this process (Stot (unit/year)).
Total area (Atot (m2)) includes:
• areas providing raw material,
• areas providing energy,
• areas providing infrastructure and area to build infrastructure, and
• area to assimilate the products and by-products (emissions) of the process
SPI = (Atot/Stot) / Ain
Ain is the area per inhabitant in the region being relevant to the process.
Specific topic Environment Sector/s of use
Waste |
Energy |
Water |
Transport |
Green/Blue |
Building & Land use |
1 | 1 | 1 | 1 | 0 | 0 |
M - main sector, 1 - sub sector and 0 - n/a Scale of applications
Component |
Building |
Neighbourhood |
City |
Region |
0 | 1 | 0 | 0 | 0 |
|