maximeagez/pylcaio

A Python class to hybridize lifecycle assessment (LCA) and environmentally extended input-output (EEIO) databases.

pyLCAIO

An object class to hybridize lifecycle assessment (LCA) and environmentally extended input-output (EEIO) databases.

• Create your own LCA-IO hybrid database (e.g., combining ecoinvent and exiobase data)
• Automates hybridization and correction for double-counting with two available methods (STAM and binary)
• Default parameters only allow the hybridization of ecoinvent 3.5, 3.6, 3.7, 3.7.1, 3.8 and 3.9 with EXIOBASE3.7+ (v3.7 and higher)
• The resulting hybrid-ecoinvent database can be exported to brightway2 and the GUI activity-browser
• Includes matching of ecoinvent and EXIOBASE environmental flows to Impact World+

Specific additional features, only available while hybridization ecoinvent3.5 with exiobase

• Can accept capitals-endogenized version of EXIOBASE
• Includes extrapolated additional environmental extensions for EXIOBASE (from USEEIO)
• Includes regionalized characterization matrices for use with Impact World+

This library will be regularly updated to provide support for newer versions of ecoinvent.

System requirements

Under 12GM of RAM you will most likely run into a MemoryError, making it impossible to generate a database

Dependencies

• Python 3
• Pandas
• Numpy
• Scipy
• pymrio
• ecospold2matrix
• pickle
• brightway2
• bw2agg

Related publications

• Majeau-Bettez, G., Agez, M., Wood, R., Södersten, C., Margni, M., Strømman, A. H., & Samson, R. (2017). Streamlined Hybridization software: merging Ecoinvent and Exiobase. In Biennial Conference of the International Society for Industrial Ecology.
• Agez, M., Majeau-Bettez, G., Margni, M., Strømman, A. H., & Samson, R. (2019). Lifting the veil on the correction of double counting incidents in hybrid Life Cycle Assessment. Journal of Industrial Ecology, 24(3), 517–533. https://doi.org/https://doi.org/10.1111/jiec.12945
• Agez, M., Wood, R., Margni, M., Strømman, A. H., Samson, R., & Majeau-Bettez, G. (2020). Hybridization of complete LCA and MRIO databases for a comprehensive product system coverage. Journal of Industrial Ecology, 24(4), 774–790. https://doi.org/10.1111/jiec.12979
• Agez, M., Muller, E., Patouillard, L., Södersten, C. J. H., Arvesen, A., Margni, M., Samson, R., & Majeau-Bettez, G. (2021). Correcting remaining truncations in hybrid LCA database compilation. Journal of Industrial Ecology. https://doi.org/10.1111/jiec.13132

pylcaio's Issues

Patching exiobase

Could you provide some info on what the xlsx file patching_exiobase represents? I see it is used for constructing the gamma matrix (where the STAM_table is elemently multiplied with the patching table), however, if I do this in Excel I get a different result from the gamma filter shown in supplementary table of the paper Agez et al. (2020).

bug in cleaning sector names of IO

The following line is causing inconsistencies between the sector names from the concordance excel file (productTaypeName) and the filtered sector_of_IO list. this is because there are sector names that have brackets with numbers and brakcets without. The split function cuases the issue. E.g:

"Wood and products of wood and cork (except furniture); articles of straw and plaiting materials (20)"
becomes:
"Wood and products of wood and cork"

can be fixed by replacing the following line:

cleaning up exiobase sector names

[i.split(' (')[0] if re.findall(r'\d', i) else i for i in self.sectors_of_IO]

with:

cleaning up exiobase sector names

self.sectors_of_IO = [re.sub(r' (\d\d)', '', i) for i in self.sectors_of_IO]

Support plan for Ecoinvent 3.8?

First, thank you for sharing this brillient work!
Is there a plan to update the package and support the new Ecoinvent 3.8 database? Thanks!

AttributeError: 'DataFrame' object has no attribute 'todense'

Hi, Maxime Agez,
Thanks for sharing your excellent work about the Hybrid LCA database generated using Ecoinvent and EXIOBASE.
I want to construct the hybrid LCA ecoinvent 3.8_exiobase 3.8.1.
Due to specific additional features are not available for hybridization ecoinvent 3.8 with exiobase, i made the following settings.
path_to_capitals = ''
complete_extensions = False
impact_world = False
regionalized = False
lcaio_object = database_loader.combine_ecoinvent_exiobase(path_to_capitals=path_to_capitals, complete_extensions=complete_extensions, impact_world=impact_world, regionalized=regionalized)
However, when i tried to update hybrid-ecoinvent, I got the following error. “AttributeError: 'DataFrame' object has no attribute 'todense'.” Could you please tell me how can I deal with this problem? Thank you very much.