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Variables¤

C_inv¤

Description:
Total investment cost for each technology.

Definition:
C_inv {TECHNOLOGIES} >= 0;

Bounds:
>= 0

Units:
[MCHF]

Usage:
Represents the capital expenditure for deploying technologies.


C_maint¤

Description:
Total O&M cost for each technology (excluding resource costs).

Definition:
C_maint {TECHNOLOGIES} >= 0;

Bounds:
>= 0

Units:
[MCHF/year]

Usage:
Captures the ongoing maintenance and operational expenses for technologies.


C_op¤

Description:
Total operational (resource) cost for each resource.

Definition:
C_op {RESOURCES} >= 0;

Bounds:
>= 0

Units:
[MCHF/year]

Usage:
Aggregates the operational costs associated with resource usage.


End_Uses¤

Description:
Total demand met for each type of end-use in each period.

Definition:
End_Uses {LAYERS, PERIODS} >= 0;

Bounds:
>= 0

Units:
[GW] (or corresponding unit to layers_in_out)

Usage:
Represents the actual energy consumed by end-uses in each period.


F_Mult¤

Description:
Installed capacity factor relative to reference size.

Definition:
F_Mult {TECHNOLOGIES} >= 0;

Bounds:
>= 0

Units:
Dimensionless multiplier (size factor)

Usage:
Scales the reference size to determine actual installed capacities.


F_Mult_t¤

Description:
Operational factor in each period, scaled by capacity factor and reference size.

Definition:
F_Mult_t {RESOURCES union TECHNOLOGIES, PERIODS} >= 0;

Bounds:
>= 0

Units:
Dimensionless multiplier

Usage:
Determines the operational level of resources and technologies in each period.


GWP_constr¤

Description:
Total emissions associated with constructed technologies.

Definition:
GWP_constr {TECHNOLOGIES} >= 0;

Bounds:
>= 0

Units:
[ktCO2-eq.]

Usage:
Calculates the emissions resulting from the construction of technologies.


GWP_op¤

Description:
Total yearly emissions of resources.

Definition:
GWP_op {RESOURCES} >= 0;

Bounds:
>= 0

Units:
[ktCO2-eq./year]

Usage:
Aggregates emissions from resource utilization annually.


Losses¤

Description:
Losses in the network for specific end-uses and periods.

Definition:
Losses {END_USES_TYPES, PERIODS} >= 0;

Bounds:
>= 0

Units:
[GW] or analogous

Usage:
Models energy losses within end-use networks over time.


Number_Of_Units¤

Description:
Number of discrete units installed for each technology.

Definition:
Number_Of_Units {TECHNOLOGIES} integer;

Type:
Integer variable

Bounds:
>= 0

Units:
Dimensionless (count of units)

Usage:
Represents the count of installed technology units based on reference size.


Share_Freight_Train¤

Description:
Share of freight mobility by train.

Definition:
Share_Freight_Train >= share_freight_train_min, <= share_freight_train_max;

Bounds:
>= share_freight_train_min, <= share_freight_train_max

Units:
Fraction

Usage:
Determines the proportion of freight transport handled by trains.


Share_Heat_Dhn¤

Description:
Share of low-temperature heating demand from DHN.

Definition:
Share_Heat_Dhn >= share_heat_dhn_min, <= share_heat_dhn_max;

Bounds:
>= share_heat_dhn_min, <= share_heat_dhn_max

Units:
Fraction

Usage:
Allocates the portion of low-temperature heating to District Heating Networks.


Share_Mobility_Public¤

Description:
Share of public mobility out of total mobility.

Definition:
Share_Mobility_Public >= share_mobility_public_min, <= share_mobility_public_max;

Bounds:
>= share_mobility_public_min, <= share_mobility_public_max

Units:
Fraction

Usage:
Determines the allocation of mobility demand to public transportation.


Storage_In¤

Description:
Power input to storage in a given period.

Definition:
Storage_In {STORAGE_TECH, LAYERS, PERIODS} >= 0;

Bounds:
>= 0

Units:
[GW]

Usage:
Models the energy input into storage technologies over time.


Storage_Out¤

Description:
Power output from storage in a given period.

Definition:
Storage_Out {STORAGE_TECH, LAYERS, PERIODS} >= 0;

Bounds:
>= 0

Units:
[GW]

Usage:
Models the energy output from storage technologies over time.


TotalCost¤

Description:
Total cost in the system (including investment, O&M, resource costs).

Definition:
TotalCost >= 0;

Bounds:
>= 0

Units:
[MCHF/year or analogous]

Usage:
Aggregates all costs incurred within the system annually.


TotalGWP¤

Description:
Total Global Warming Potential (GWP) emissions in the system.

Definition:
TotalGWP >= 0;

Bounds:
>= 0

Units:
[ktCO2-eq./year]

Usage:
Aggregates all emissions contributing to global warming potential annually.


Y_Solar_Backup¤

Description:
Binary variable indicating the technology chosen as backup for solar.

Definition:
Y_Solar_Backup {TECHNOLOGIES} binary;

Type:
Binary

Units:
Dimensionless (0 or 1)

Usage:
Identifies which decentralized technology serves as a backup for solar energy.