Sets and groups

Named groups of processes and commodities let a rule say "all coal power plants" once and reuse it everywhere.

~TFM_COMGRP

Defines commodity groups: named groups of commodities, used where a TIMES attribute needs a commodity group (for example FLO_SHAR, FLO_FUNC, a process's primary commodity group) and in commodity filters. Accepted in VT_*, SubRES_* and SysSettings (BY and SubRES since release 4.2.1.0).

Column	Meaning
Name	The group name.
Description	Description.
cset_set, cset_cn, cset_cd	Which commodities belong to the group (filters; wildcards and exclusions allowed).
AllRegions, region columns	In which regions the group is defined.

~TFM_COMGRP
Name	Description	AllRegions	cset_cn
IIS_Gases	Iron and steel gases	y	INDNGA,INDIIS,INDCOG
ELC_gc	Electricity, grid + curtailed	y	ELC,ELCCurt
cg_NGAHH2	Natural gas + hydrogen	y	GASNGA,HH2

Veda also has built-in groups for every process: NRGI / NRGO (energy inputs / outputs), MATI / MATO, DEMI / DEMO, ENVI / ENVO, FINI / FINO.

Process and commodity sets (~TFM_PSets, ~TFM_CSets)

User-defined sets are defined in set-rules workbooks: files in the model root whose name starts with Set (for example Sets-DemoModels.xlsx). Each row defines one set by a filter, and the set can then be used in any pset_set / cset_set column of any layer, and in reports.

Column (aliases)	Meaning
SetName (set_name)	Name of the set.
SetDesc (set_desc)	Description.
pset_set / cset_set	Membership of other sets, including user sets defined above it.
pset_pn, pset_pd, pset_ci, pset_co / cset_cn, cset_cd	Name, description and topology filters.
T_Pos_AndOr, T_Neg_AndOr, … / C_Pos_AndOr, …	How the filters combine (details).
Comment	Free text.

~TFM_PSets
pset_set	pset_pn	pset_ci	SetName	SetDesc
	IMP*Z		DUMIMP	Dummy imports
ELE		*COA	ECOA	Coal power plants
ELE		ELCBIO	ELEBIO	Biomass power plants

~TFM_CSets
cset_set	cset_cn	cset_cd	SetName
	*ELC*	,-*PLANTS*	NRG_ELC
NRG,-NRG_ELC,-NRG_GAS	*		NRG_MISS

The second ~TFM_CSets row collects every energy commodity not already in NRG_ELC or NRG_GAS. Sets are re-evaluated at every sync, so they pick up new processes and commodities that match their rules.

Set* workbooks may also hold ~VbeViews (saved views for browsing) and metadata tags.