(print_mc_curves)=
# print mc_curves
Prints out marginal cost curves to file. The first input string is the file name, while the two integer input values specify the start and end time intervals (zero indexed) for the marginal cost calculations. Similar curves are produced by the "print bp_curves" command if the option "/mc_format" is used.

|   |   |
|---|---|
|Options|nan|
|License|SHOP_MC|
|Release version|14.4.1.3|

```{contents}
:local:
:depth: 1
```

## Printing marginal cost curves
Marginal cost curves can be printed to an xml file with the command:
```
Command: print mc_curves <filename.xml> (<start_t> <end_t>) [/<options>]
```

|<option>|Comment|
|---|---|
|up|Curves are also printed for combinations where generators are added|
|down|Curves are also printed for combinations where generators are removed|
|pq|Only production and discharge are printed in the tables. The plant summary tables are also omitted|
|mod|Will make curves that are originally non-convex convex|

Note that it is not possible to give the start (or end) time step by itself, the time steps must be given as a pair. If they are not provided, the marginal cost curves will be printed for all time steps. Also note that any of the option combinations are valid. For instance:
```
print mc_curves mc.xml 12 24 /up /down
```
will print curves for all time steps from 12 to 24 to the file "mc.xml". Curves for combinations with added/removed generators relative to the given combination will also be printed.