MUSE

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Hi and welcome to the Google Groups for the MUSE energy model!

This is a place you can come to if you have any questions whilst using MUSE. This can be done either by searching for your specific problem, or if you can't find an answer to your question post a new thread with your question.

Please organise your questions as follows to help the group to be more searchable for future users:

Search the group for your question, as it may have been asked before.
If you can't find a similar question, post one thread per question.
Copy and paste code/error messages rather than screenshots so that the errors are searchable.
Please describe your problem in as much detail as possible to help users understand the best way to help!

That's it!

Thanks for joining and we hope you learn a lot!

Regards,

The MUSE team.

0 selected

Lennart Morlock2

Mar 11

Error when running MUSE with multiple agents

I think I found the cause of this error and a possible solution. For more details, see the related

unread,

Error when running MUSE with multiple agents

I think I found the cause of this error and a possible solution. For more details, see the related

Mar 11

Lennart Morlock2

Mar 7

Lexical comparison ObjData parameter influence

Hi, After looking at the code, I understand now that the lexical_comparison decision method does not

unread,

Lexical comparison ObjData parameter influence

Hi, After looking at the code, I understand now that the lexical_comparison decision method does not

Mar 7

Alaa Qassabi, Lennart Morlock2

Mar 4

Equal investment in conventional and alternative technologies by 2050

Hi Alaa, could you share the input files you used for those scenarios? Then, I would be happy to have

unread,

Equal investment in conventional and alternative technologies by 2050

Hi Alaa, could you share the input files you used for those scenarios? Then, I would be happy to have

Mar 4

Juan Stockigt, Lennart Morlock2

Feb 19

Duda sobre link caído

Hi, There seems to be a mistake in your link. You can find the correct link to the documentation on

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Duda sobre link caído

Hi, There seems to be a mistake in your link. You can find the correct link to the documentation on

Feb 19

Lennart Morlock

Feb 14

Missing sectors in "timeslice_supply" and similar output files

Hello everyone, I tried to use the "timeslice_supply" and "timeslice_consumption"

unread,

Missing sectors in "timeslice_supply" and similar output files

Hello everyone, I tried to use the "timeslice_supply" and "timeslice_consumption"

Feb 14

Lennart Morlock

Feb 12

ValueError: Failed to group data. Are you grouping by a variable that is all NaN?

Hi all, I got the following error message by running the attached input files. The error occurs in

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ValueError: Failed to group data. Are you grouping by a variable that is all NaN?

Hi all, I got the following error message by running the attached input files. The error occurs in

Feb 12

jamshid, … Diego Moya5

Jan 24

Pandas get_loc method raises "KeyError: Year", if MUSE foresight != 5

Dear Diego, In my case error came from ...\muse\outputs\mca.py @register_output_quantity hook

unread,

Pandas get_loc method raises "KeyError: Year", if MUSE foresight != 5

Dear Diego, In my case error came from ...\muse\outputs\mca.py @register_output_quantity hook

Jan 24

Jan 14

SOLVED Re: Digest for muse-model@googlegroups.com - 1 update in 1 topic

Dear muse team, The problem was duplicated years for few technologies. I fixed it in the inputs. Many

unread,

SOLVED Re: Digest for muse-model@googlegroups.com - 1 update in 1 topic

Dear muse team, The problem was duplicated years for few technologies. I fixed it in the inputs. Many

Jan 14

Jan 14

cannot convert a DataFrame with a non-unique MultiIndex into xarray

Dear MUSE team, I would like to ask regarding the following error: PATH\lib\site-packages\xarray\core

unread,

cannot convert a DataFrame with a non-unique MultiIndex into xarray

Dear MUSE team, I would like to ask regarding the following error: PATH\lib\site-packages\xarray\core

Jan 14

Alaa Qassabi, sgiarols4

12/21/23

Direct Air Capture

Hi Alaa The shared info looks OK. There may be a mismatch in the commodity type definition, as CO2f

unread,

Direct Air Capture

Hi Alaa The shared info looks OK. There may be a mismatch in the commodity type definition, as CO2f

12/21/23

Sonja “sonja_stardust”, sgiarols3

12/19/23

Merge of two demand sector in muse

Dear Sonja, glad you found your way out. In general, the preset can contain the demand for commodity

unread,

Merge of two demand sector in muse

Dear Sonja, glad you found your way out. In general, the preset can contain the demand for commodity

12/19/23

Sonja “sonja_stardust”, sgiarols3

12/19/23

MUSE error Subsector with <TechName> has no output commodities

Dear Sonja thanks for your updates. As popped up in other threads, https://groups.google.com/g/muse-

unread,

MUSE error Subsector with <TechName> has no output commodities

Dear Sonja thanks for your updates. As popped up in other threads, https://groups.google.com/g/muse-

12/19/23

Sonja “sonja_stardust”, sgiarols2

12/19/23

ValueError: zero-size array to reduction operation fmax which has no identity

Dear Sonja thanks for your question. There could be different causes, but typically it comes when a

unread,

ValueError: zero-size array to reduction operation fmax which has no identity

Dear Sonja thanks for your question. There could be different causes, but typically it comes when a

12/19/23

11/20/23

Error when running MUSE

Dear Joewi we can't reproduce the error with this little info. Best Il giorno martedì 14 novembre

unread,

Error when running MUSE

Dear Joewi we can't reproduce the error with this little info. Best Il giorno martedì 14 novembre

11/20/23

Sonja “sonja_stardust”, sgiarols2

11/20/23

Constraint on Muse

Dear Sonja constraints are specified depending on the needs. Some examples on how to change are here,

unread,

Constraint on Muse

Dear Sonja constraints are specified depending on the needs. Some examples on how to change are here,

11/20/23

jamshid, … Alaa Qassabi6

11/13/23

"xarray MergeError" in combination of timeslice, agent and region

Dear Alaa Qassabi, As mentioned in my last post, the developers already fixed this issue. Please make

unread,

"xarray MergeError" in combination of timeslice, agent and region

Dear Alaa Qassabi, As mentioned in my last post, the developers already fixed this issue. Please make

11/13/23

Lennart Morlock

11/8/23

Availability of case study input data from paper

Hello MUSE team, I found the paper below on modelling the building sector very interesting. I would

unread,

Availability of case study input data from paper

Hello MUSE team, I found the paper below on modelling the building sector very interesting. I would

11/8/23

Alaa Qassabi, sgiarols2

11/3/23

xarray MergeError; when running more than one agent for different sectors

Dear Alaa, We can't replicate the error. It would be useful to have a demo case with the error

unread,

xarray MergeError; when running more than one agent for different sectors

Dear Alaa, We can't replicate the error. It would be useful to have a demo case with the error

11/3/23

Sharwari Dixit, sgiarols2

11/3/23

Qs from 'Customising MUSE Tutorials'

Hi Sharwari this issue has been raised in the past . We are getting soon a new release with the

unread,

Qs from 'Customising MUSE Tutorials'

Hi Sharwari this issue has been raised in the past . We are getting soon a new release with the

11/3/23

Alaa Qassabi, sgiarols2

10/16/23

specific fuel and electricity use per technology

Dear Alaa you can use the function "timeslice_consumption", which cn be integrated with the

unread,

specific fuel and electricity use per technology

Dear Alaa you can use the function "timeslice_consumption", which cn be integrated with the

10/16/23

Ioannis Vrochidis, MUSE2

9/19/23

Commodity price calculation

Dear Ioannis here is the link to the main function for estimating the market equilibrium and the

unread,

Commodity price calculation

Dear Ioannis here is the link to the main function for estimating the market equilibrium and the

9/19/23

Sonja “sonja_stardust”, sgiarols2

9/9/23

Doubts about the demand of material set in the "preset"

Dear Sonja by default the interpolation is linear if you set your demand at specific years, then the

unread,

Doubts about the demand of material set in the "preset"

Dear Sonja by default the interpolation is linear if you set your demand at specific years, then the

9/9/23

Stephanie Pan, sgiarols2

9/1/23

Agent objective -- comfort

Dear Pan the documentation means to say that it is a user-input and should be added with the

unread,

Agent objective -- comfort

Dear Pan the documentation means to say that it is a user-input and should be added with the

9/1/23

Stephanie Pan, sgiarols2

9/1/23

Set minimum capacity for a technology

Dear Pan you can try to setup the minimum service factor, as described here https://muse-os.

unread,

Set minimum capacity for a technology

Dear Pan you can try to setup the minimum service factor, as described here https://muse-os.

9/1/23

Chiara Mauri, sgiarols2

8/3/23

ScalingSize parameter

Thanks. The second one is correct. Best Il giorno mercoledì 2 agosto 2023 alle 15:04:51 UTC+2 chiaram

unread,

ScalingSize parameter

Thanks. The second one is correct. Best Il giorno mercoledì 2 agosto 2023 alle 15:04:51 UTC+2 chiaram

8/3/23

Romain Akpahou, sgiarols5

7/27/23

MUSE installation

Thank you for the help and clarifications. l will follow and give back shortly On Thursday, 27 July

unread,

MUSE installation

Thank you for the help and clarifications. l will follow and give back shortly On Thursday, 27 July

7/27/23

Romain Akpahou, sgiarols3

7/23/23

Adding a service demand by correlation

Thank you for your reply Best regards, lr. Romain AKPAHOU -------------------------------------------

unread,

Adding a service demand by correlation

Thank you for your reply Best regards, lr. Romain AKPAHOU -------------------------------------------

7/23/23

Romain Akpahou2

7/22/23

Checking Hands-on 4 Output MCACapacity results

Hello all, Please any idea on what the issue could be here? On Fri, 21 Jul 2023, 11:40 Romain Akpahou

unread,

Checking Hands-on 4 Output MCACapacity results

Hello all, Please any idea on what the issue could be here? On Fri, 21 Jul 2023, 11:40 Romain Akpahou

7/22/23

Stephanie Pan, sgiarols2

7/22/23

Heat delivery modelling

Dear Pan to separate production from distribution in MUSE you would need to add a sector, like a

unread,

Heat delivery modelling

Dear Pan to separate production from distribution in MUSE you would need to add a sector, like a

7/22/23

Stephanie Pan, sgiarols2

7/20/23

Technology with multiple input energy commodities

Dear Pan you can use Commin.csv to represent as many inputs you'd have to a technology. The way

unread,

Technology with multiple input energy commodities

Dear Pan you can use Commin.csv to represent as many inputs you'd have to a technology. The way

7/20/23

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