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# Plant

A `Plant` node defines a fuel production plant which are part of the modeling of the available fuel supply.
Examples of plants are e-methanol plants and blue ammonia plants.

Example:

```python
Plant "plant_methanol_electro" {
    Fuel = Fuel("methanol_electro")
    Process = Process("methanol_synthesis_electro")
    Region = Region("europe")
    Source = Source("grid")
    
    Capacity = Forecast("methanol_electro_plant_capacity")
    
    LeadTime = 3
    Lifetime = 20
    Uptime = 0.9
}
```


## Attributes

### Fuel 

This attribute sets the fuel that is produced by the plant

* **Data type**: `Fuel` node
* **Example values**: `Fuel("name")`
* **Default**: None. Must be defined by the user.

### Process 

This attribute sets the production process used by the plant.

* **Data type**: `Process` node
* **Example values**: `Process("name")`
* **Default**: None. Must be defined by the user.

### Region 

This attribute sets the region in which the plant is built.

* **Data type**: `Region` node
* **Example values**: `Region("name")`
* **Default**: None. Must be defined by the user.

### Source 

This attribute sets the energy source which is used to generate power for the plant.

* **Data type**: `Source` node
* **Example values**: `Source("name")`
* **Default**: None

### Capacity 

This attribute sets the production capacity of the plant in tons/day.

* **Data type**: `Float`, `Forecast`, `Variable`
* **Example values**:
  + `3000`
  + `Forecast("name")`
* **Unit**: tons / day
* **Minimum value**: 0
* **Default**: None. Must be defined by the user.

### Uptime

This attribute sets the production uptime of the plant in time/time.

* **Data type**: `Float`, `Forecast`, `Variable`.
* **Example values**:
  + `0.95`
  + `Forecast("name")`
* **Unit**: Fraction
* **Minimum value**: 0
* **Maximum value**: 1
* **Default**: 1

### Lifetime

This attribute sets the lifetime of the plant in years.

The plant is decommissioned when it surpasses its lifetime.

* **Data type**: `Float`, `Forecast`, `Variable`
* **Example values**:
  + `30`
* **Unit**: Years
* **Minimum value**: 0
* **Default**: 30

### LeadTime

This attribute sets the planning to production lead time of the plant in years.

* **Data type**: `Float`, `Forecast`, `Variable`
* **Example values**:
  + `4`
  + `Forecast("name")`
* **Unit**: Years
* **Minimum value**: 0
* **Default**: 1

### CostOfCapital

This attribute sets the cost of capital used to calculate the costs associated with financing the investment (through debt and equity) as well as the discount rate used in calculating the levelized cost of production.

* **Data type**: `Float`, `Forecast`, `Variable`
* **Example values**:
  + `0.1`
  + `Forecast("name")`
* **Unit**: Fraction/year
* **Minimum value**: 0
* **Default**: 0

## Commands

### set\_feed\_transport

This command sets the transport mode used for transporting a specific feedstock or process output to the plant.

* **Primary key type**: String (Name of feedstock or process)
* **Data type**: `Transport` node
* **Example values**:
  + `"feedstock_name", Transport("name")`
  + `"Process_name", Transport("name")`
* **Default**: None

### set\_feed\_distance

This command sets the distance a given feedstock or process output is transported to the plant in nautical miles.

* **Primary key type**: String (Name of feedstock or process)
* **Data type**: `Float`, `Forecast`, `Variable`
* **Example values**:
  + `"feedstock_name", 100`
  + `"process_name", 100`
  + `"process_name", Forecast("name")`
* **Default**: None