Model Questions

Where are the previous versions of the model, like 4.03a?

The Government of Canada and S&T Squared no longer have an agreement to distribute the older versions of the model. If you need an old version please This email address is being protected from spambots. You need JavaScript enabled to view it. and we can direct you to who to ask within the Government of Canada.

Will GHGenius work on an Apple computer?

Yes it will but it will not work with Excel 2008. This version of Excel does not support macros so GHGenius will not function properly with it.

I have entered new values in the model but the results haven't changed. What is wrong?

GHGenius has circular references and must use iterations to solve them. These settings are found under "Tools", Options, Calculation. The Iteration box must be checked and a minimum of 25 iterations specified. These options are embedded in GHGenius but if another Excel worksheet is open when GHGenius is opened then the calculation options from the first spreadsheet will overwrite those in the GHGenius workbook and will have to be manually changed. It is always easier to open the GHGenius file first, and then open other Excel files that are needed.

When I open GHGenius it doesn't open on the Index sheet and when I press run program I get a warning "Macros in the project are disabled".

The macro security settings are found under "Tools", Macro, Security. Low or Medium must be selected. You may have to close and reopen the model for the new settings to take effect.

I use Open Office/Libre Office. Will GHGenius work with that?

The macros in Open Office use a different language than Excel so GHGenius will not currently operate in Open Office. Even ignoring macros, Open Office does not handle the size and number of circular references.

What is the difference between GHGenius and GREET?

They are both similar Excel based lifecycle models but there are significant detailed differences between them in terms of the system boundaries, the fuel pathways modelled, and the default data stored in the models. GREET uses US data only. GHGenius has Canadian data as well as US data. GHGenius also has some data for Europe, Mexico, and India. GHGenius has more fuel production pathways than GREET. The models do produce similar, but not identical results, when they are run for the same pathway and location. The differences can be identified and explained by experienced users.


Website Questions

I was registered on the old site, can I use that login information?

We're afraid it was not feasible to save everything from the older website. You'll need to re-register.

I have forgotten my password; can you send it to me?

We store passwords in an encrypted format, so ONLY YOU knew it. If you have forgotten your password, we cannot restore it, but you can request a new one. There is a link under the input boxes on the login form to the right.

I have registered but I can't access the model, what do I do? 

Your web browser must have cookies enabled to navigate between the pages. You must change your browser settings using the "tools" menu.

I couldn't remember registering for GHGenius, so I registered again. I received a note saying that my registration is already in use either by user name or password. I don't remember the username / password combination. Can you help me please?

If you have forgotten your username you can retrieve your registration information via the link under the input boxes on the login form to the right. You will be prompted for your e-mail address you registered with. If you need immediate access you can try to register with a different e-mail address.

I have entered my user name and password but it doesn't accept them.

User names and passwords are case sensitive and must include any spaces that were used during the initial signup.

I have forgotten my password and I have changed e-mail addresses. What do I do?

You will have to register again. We can delete your original registration if you want to use the same user name.

What information do you store?

We store only what is asked for on the registration form. You can see this from your user profile.

Will you delete my information?

If you wish for us to delete your account please This email address is being protected from spambots. You need JavaScript enabled to view it. with a request from the address you used to register.