Login
Remember
Register
Questions
Unanswered
Tags
Ask a Question
Ask a Question
Recent questions tagged unit process
0
votes
1
answer
312
views
Is it possible to convert a Unit Process into a System Process within openLCA to subsequently export it in ILCD format?
asked
Dec 17, 2025
in
openLCA
by
farcebastias
(
450
points)
system process (lci)
ilcd
unit process
import export
0
votes
1
answer
478
views
Best practice for mixing Cutoff System (S) and Unit (U) processes in the same openLCA project
asked
Dec 9, 2025
in
openLCA
by
rosamaria.fibla
(
120
points)
openlca
unit process
system process (lci)
ecoinvent
cut-off
0
votes
1
answer
398
views
Why do some ecoinvent 3.11 process datasets have direct impacts, while others show none?
asked
Oct 28, 2025
in
openLCA
by
boonchong91
(
120
points)
life cycle impact assessment (lcia) methods
unit process
database
0
votes
1
answer
398
views
Different results in cost calculation between System and Unit Processes
asked
Oct 19, 2025
in
openLCA
by
tapmbot
(
380
points)
apos
calculation method
unit process
system process (lci)
ecoinvent
0
votes
0
answers
531
views
System Process material not showing result
asked
Sep 19, 2024
in
openLCA
by
gwantaelee
(
120
points)
unit process
system process (lci)
results
ecoinvent 3.9.1
0
votes
1
answer
1.0k
views
Functional Unit for a lubrication system
asked
Jun 25, 2024
in
openLCA
by
poobeshks
(
130
points)
functional unit
modelling
openlca
unit process
0
votes
2
answers
765
views
In the picture below, I don't understand what is in the box "benzene_production"?
asked
Apr 16, 2024
in
Miscellaneous
by
bencsik
(
120
points)
flows
results
unit process
database
0
votes
0
answers
526
views
Discrepancy between UPR and LCI process for incineration
asked
Oct 27, 2023
in
Miscellaneous
by
Matias Lund
(
8.3k
points)
ecoinvent 3.9.1
system process (lci)
unit process
incineration
0
votes
1
answer
912
views
Product system with the same process many times
asked
Oct 14, 2023
in
openLCA
by
jodhernandezbe
(
140
points)
product system
unit process
openlca
0
votes
0
answers
653
views
Exporting Unit Processes
asked
Sep 26, 2023
in
openLCA
by
matu
(
120
points)
export
unit process
version 2.0
ecoinvent
knime
0
votes
0
answers
1.5k
views
Unit Process vs System Process
asked
Mar 9, 2023
in
openLCA
by
Giannis Kosmidis
(
930
points)
unit process
product system
system process (lci)
+2
votes
1
answer
911
views
Unit calculation are slow even with all optimizations
asked
Feb 14, 2023
in
openLCA
by
Tom56
(
320
points)
openlca
calculation slow calculation
unit process
0
votes
1
answer
927
views
Excel file from product system calculation export too heavy
asked
Dec 19, 2022
in
openLCA
by
Mauric
(
160
points)
excel export
product system
system process (lci)
unit process
contribution tree
0
votes
1
answer
2.6k
views
Inputs section: Unit process use elementary flows and System process use product flows?
asked
Sep 29, 2022
in
openLCA
by
MLMVD
(
240
points)
inputs
unit process
elementary flow
system process (lci)
up
0
votes
1
answer
1.4k
views
System processes in EN15804?
asked
Aug 18, 2022
in
Miscellaneous
by
Matias Lund
(
8.3k
points)
openlca
epd
system process (lci)
unit process
+2
votes
1
answer
2.1k
views
copy process and work on it
asked
Nov 25, 2021
in
openLCA
by
anne2801
(
490
points)
impact analysis
copy paste
database
unit process
calculation
0
votes
0
answers
553
views
Export all datasheets but save file as the "name" and not the "UUID"
asked
Nov 16, 2021
in
openLCA
by
Saba
(
140
points)
export
uuid
name
unit process
+2
votes
1
answer
908
views
ProBas+ negative results/ different results for unit and process system
asked
Nov 14, 2021
in
openLCA
by
Yannik
(
140
points)
openlca
product system
unit process
lcia results
+1
vote
0
answers
662
views
Function unit on LCA
asked
Nov 5, 2021
in
openLCA
by
Fared
(
130
points)
unit process
function unit
0
votes
2
answers
4.2k
views
I still don't understand the difference between unit and system process. Could anyone explain it to me again?
asked
Sep 6, 2021
in
openLCA
by
LisaEhm
(
240
points)
openlca
unit process
system process (lci)
0
votes
1
answer
4.1k
views
Impact Analysis result
asked
Jul 1, 2021
in
openLCA
by
masumashipu
(
210
points)
impact analysis
openlca
unit process
+2
votes
1
answer
3.6k
views
Different calculation results for same Product systems with process type as System process vs Unit process
asked
May 19, 2021
in
openLCA
by
karo_iti
(
250
points)
product system
unit process
system process (lci)
0
votes
1
answer
2.1k
views
Why can the system process be displayed in the process contribution of the report instead of the unit process?
asked
Mar 17, 2021
in
openLCA
by
CayJ
(
120
points)
system process (lci)
unit process
processes
0
votes
0
answers
734
views
Results not being shown for unit processes
asked
Jan 5, 2021
in
openLCA
by
lcasey
(
140
points)
unit process
system process (lci)
market process ecoinvent
ecoinvent3.6
0
votes
1
answer
1.1k
views
Where did my providers go
asked
Dec 6, 2020
in
openLCA
by
brettduane
(
260
points)
system process (lci)
unit process
ecoinvent 3.7
0
votes
1
answer
1.1k
views
Impact Analysis for a U process does not give same result as calculation
asked
Nov 7, 2020
in
openLCA
by
SCarp
(
190
points)
openlca 1.10.3
impact analysis
calculation
unit process
+1
vote
1
answer
1.6k
views
Why are ecoinvent 3.7 datasets all "unit processes" but show LCI results? Shouldn't those be "system processes"?
asked
Oct 13, 2020
in
openLCA
by
LisaEhm
(
240
points)
system process (lci)
unit process
market process ecoinvent
production process ecoinvent
elementary flow
0
votes
0
answers
1.2k
views
connections of system processes
asked
May 24, 2020
in
openLCA
by
Zoli
(
570
points)
system process (lci)
unit process
system processes connection
allocation
0
votes
1
answer
1.9k
views
how to make provider connection in system process,
asked
Apr 20, 2020
in
openLCA
by
Zoli
(
570
points)
product system
unit process
system process (lci)
provider linking
0
votes
1
answer
1.3k
views
Feature request - option to default to system processes after x steps
asked
Jun 11, 2019
in
openLCA
by
sjgcooper
(
2.0k
points)
feature request
product system
unit process
system process (lci)
+2
votes
1
answer
6.4k
views
Which Should i use Unit process or System Process?
asked
May 4, 2019
in
openLCA
by
Aayush Thapa
(
620
points)
openlca
life cycle inventory (lci)
unit process
system process (lci)
+2
votes
1
answer
4.6k
views
How to combine Ecoinvent Unit (UP) and System (LCI) datasets without loosing processes?
asked
Mar 27, 2019
in
openLCA
by
sjgcooper
(
2.0k
points)
ecoinvent3.5
system process (lci)
unit process
life cycle inventory (lci)
combining databases
0
votes
1
answer
2.1k
views
Default providers lost after import
asked
Jan 31, 2019
in
openLCA
by
jensfpeters
(
120
points)
import export
unit process
default provider
flows
+2
votes
1
answer
12.8k
views
Difference between cutoff, U and cutoff, S
asked
Nov 20, 2018
in
openLCA
by
sagets
(
870
points)
unit process
system process (lci)
openlca
+1
vote
1
answer
2.4k
views
Process in a Process
asked
Jun 14, 2018
in
openLCA
by
amine7
(
190
points)
system process (lci)
process
unit process
openlca
+3
votes
2
answers
23.9k
views
Difference between system process and unit process
asked
Apr 11, 2018
in
openLCA
by
Norbert
openlca1.7
system process (lci)
unit process
product system
provider linking
0
votes
2
answers
6.9k
views
'System process' vs. 'Unit process' under Provider
asked
Dec 4, 2017
in
openLCA
by
jrsfinn
openlca1.6
system process (lci)
unit process
provider linking
0
votes
2
answers
5.7k
views
'Unit process' versus 'system process'
asked
Jan 4, 2017
in
Miscellaneous
by
FrancieGiuly
unit process
system process (lci)
product system
provider linking
To see more, click for the
full list of questions
or
popular tags
.
ask.openLCA
is a question-and-answer (Q&A) website on
Life Cycle Assessment (LCA)
.
It is also the public support platform for
openLCA
,
openLCA Nexus
and the
LCA Collaboration Server
.
Before asking questions please also consult our online manuals for
openLCA
and the
LCA Collaboration Server
.
Receive guaranteed and prioritised professional support via
GreenDelta's help desk
.
ask.openLCA is run by
GreenDelta
, the creators of openLCA.
Categories
All categories
openLCA
(3.2k)
Miscellaneous
(205)
LCA Collaboration Server
(81)
Follow @openlca
Most popular tags
openlca
database
ecoinvent
process
life cycle impact assessment (lcia) methods
life cycle impact assessment (lcia)
product system
import
flows
results
error
openlca1.6
calculation
modelling
python
data inputs
monte carlo analysis
input output
processes
uncertainty
data
olca-ipc
openlca1.7
impact analysis
lca
openlca1.5
impact assessment method
en15804
lca collaboration server
import export
methods
life cycle assessment (lca)
waste treatment
excel export
provider linking
openlca 2.0
contribution tree
exiobase
ecoinvent3.6
openlca 1.10.3
impact categories
waste management
exporting results
allocation
crash
...
