8.3.6. Existing Capacity

Each sector must have an existing capacity file, which defines the total capacity of all pre-defined assets in that sector. This data must be given in the form of a decommissioning profile, which shows how much capacity of each technology exists in each region at the start of the simulation, and how it is expected to decline over time as these assets are decommissioned. Any assets installed by MUSE during the simulation will be added on top of this existing capacity.

This file should follow the structure shown in the example table below, and be referenced from the TOML settings file using the existing_capacity key. For example, in this case, the file shows that in region1 there is 5 MW of existing residential electric boiler capacity in 2010, of which 0.5 MW will remain active in 2020, and none will remain by 2030.

Existing capacity of technologies: the residential boiler example

technology	region	2010	2020	2030	2040	2050
resBoilerElectric	region1	5	0.5	0	0	0
resBoilerElectric	region2	39	3.5	1	0.3	0

technology

represents the technology ID, which must match a technology defined in the sector’s technodata file.

region

represents the region ID, which must match a region defined in the settings TOML.

Years (one column per year)

represent the years in the simulation. The values in these columns represent the total installed capacity of the technology in the given year/region.