openLCA 1.7.4, released October 2018

PLEASE NOTE that the main change between openLCA 1.7.3 and openLCA 1.7.4 is a crucial fix of a bug which prevented users from importing *.zolca databases into existing databases in openLCA. openLCA 1.7.4 was released one week after openLCA 1.7.3 and includes the new features that were already shipped with openLCA 1.7.3; These features are explained in the following:

Improved LCA Collaboration Server compatibility

We fixed a a bug when working with openLCA and the LCA Collaboration Server and we highly (!) recommend all users working with openLCA in combination with the LCA Collaboration Server to use openLCA 1.7.4.

Multi provider checks during product system creation

When creating a product system, openLCA can now automatically check for flows with multiple providers. If flows with multiple providers are detected in a product system, a dialogue pops up which lets you select the default provider for the respective flows.

Improved Copy and Paste compatibility within openLCA and with other software (e.g. Excel)

openLCA users can now seamlessly copy and paste data between input and output lists of processes as well as with other software such as Excel. The feature works also for parameter tables.

Dropdown menu for parameters and auto completion

Parameters in input and output lists of processes can now be selected via a drop-down menu.

‘Usage view’ for parameters

The use of parameters within a database can now be checked via the ‘usage view’ feature (right-click on a parameter and select usage)


  • Improved view of a long list of search results in openLCA
  • The first connection of openLCA to a new database is now much quicker
  • Parameter and function names may now start with non-letter characters

Download & Support

Download the most recent version of openLCA for free via Happy LCA modelling!

For questions ask the community or get professional support.

How to get the latest version?

Version 1.7 is available at the openLCA Downloads website. You can use either the installer or the .exe file included in the zip file also provided in the downloads page (no need to de-install your older version). In both cases, when you open a database, the update manager will be opened and you will need to install the required updates. By clicking OK, you accept the conversion. The content of the database will not be affected by the required updates, only the structure. Have in mind that this process cannot be reversed. Once your database has the new database structure it cannot be opened with earlier openLCA versions (e.g. 1.5.0, 1.4.2).