Metadata-Version: 2.4
Name: cronian
Version: 0.3.4
Summary: Build energy models with flexible demand from simple configuration files.
Author-email: Christian Doh Dinga <c.dohdinga@tudelft.nl>, Sander van Rijn <s.vanrijn@esciencecenter.nl>
License-Expression: MIT
Project-URL: Repository, https://gitlab.tudelft.nl/demoses/cronian
Project-URL: Issues, https://gitlab.tudelft.nl/demoses/cronian/-/issues
Project-URL: Changelog, https://gitlab.tudelft.nl/demoses/cronian/-/blob/main/CHANGELOG.md
Keywords: energy transition,flexibility
Requires-Python: >=3.10
Description-Content-Type: text/markdown
License-File: LICENSE
License-File: COPYRIGHT
Requires-Dist: Pyomo
Requires-Dist: pandas
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Dynamic: license-file

# Cronian

| **fair-software.eu recommendations** |                                                                 |
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Cronian is a Python package for building copper plate optimization models in [Pyomo][Pyomo] to
optimize flexibility scheduling in multi-carrier integrated energy systems. You can specify your
entire co-optimization model using simple `YAML` and `CSV` files. Alternatively, you can use the
modular architecture to build standalone models of generators and consumers/prosumers to use as part
of other methods such as distributed optimization or agent-based simulations.

## Installation

You can install Cronian directly from [PyPI](https://pypi.org/project/cronian/):

```bash
python3 -m pip install cronian[gurobi]
```

Note: this includes the optional `gurobi` dependency, since the Gurobi solver is used by default.
If omitted, please make sure to pass your own preferred solver instead when solving through Cronian.

## Usage

### Creating Models

To create a model, you have to specify the desired generators and prosumers in
`YAML` format. To start, generators are fairly simple:
```yaml
# Generator01.yaml
Generators:  # Top level key must be 'Generators'
  # Required keys
  name: WindOffshore
  id: G05  # Must be unique
  marginal_cost_quadratic: 0.007
  marginal_cost_linear: 5
  installed_capacity: 6000
  # Optional keys
  availability_factor: WIND_OFFSHORE  # Timeseries column name
```
The name under the optional `availability_factor` key will be used to look up a timeseries from the
dataframe that is passed in separately, otherwise availability will be set to `1` at all times `t`.
The production `gen_power[t]` of the specified generator will then be constrained by:
```python
0 <= gen_power[t] <= installed_capacity * availability_factor[t]
```

A simple prosumer with just some fixed demand would look like this:
```yaml
# Prosumer01.yaml
Prosumers:
  name: Simple_demand
  id: P01
  demand:
    commercial:
      carrier: electricity
      base:
        peak: 100
```

We can make prosumers more interesting by adding `flexible` demand and `assets`. Multiple demands
can be added, each with their own `flexible` and `base` (inflexible) components. Furthermore, there
are three kinds of `assets`: `generator`, `converter` and `storage`. Here's a more complex prosumer
with flexible demand and one of each asset type:
```yaml
# Prosumer01.yaml
Prosumers:
  name: Heat_system_operator
  id: P02
  demand:
    hot_water:
      carrier: heat  # Must be 'electricity', or output of an asset
      # At least `base` or `flexible` demand must be present
      base:
        peak: 300
      flexible:  # `flex+N` encodes a demand with `N` timesteps of flexibility
        flex+2:
          peak: 125000
          n_profile: P02-flexible-demand  # similar to `availability_factor` for generators
        flex+3:
          peak: 50
  assets:
    solar_pv:
      behavior_type: generator
      input: light
      output: electricity
      installed_capacity: 1000
      availability_factor: SOLAR_WEST  # Optional
      operational_costs:
        marginal_cost_quadratic: 0.007
        marginal_cost_linear: 5
    chp:
      behavior_type: converter
      # Can convert 1-to-1, 1-to-many or many-to-1
      input: methane
      output:
        - heat
        - electricity
      installed_capacity: 1000
      # if converting 1-to-many or many-to-1, specify efficiency for each of the 'many'
      efficiency:
        heat: 0.4
        electricity: 0.4
    heat_storage:
      behavior_type: storage
      input: heat
      output: heat
      energy_capacity: 5000
      initial_energy: 50
      charge_capacity: 500
      discharge_capacity: 500
      charge_efficiency: 0.8
      discharge_efficiency: 0.65
```

### Performing Co-Optimization

To use Cronian for a co-optimization run, you first have to specify an additional
`general_config.yaml` file, and place it in the same folder as your generator and prosumer
configuration files.
```yaml
# general_config.yaml
General:
  number_of_timesteps: 24
```

Then in code you can create and run the model as follows:
```python
from pathlib import Path
from cronian.run_co_optimization import main
import pandas as pd

main(
    configurations_folder=Path("/path/to/configurations/"),
    timeseries_data=pd.read_csv("/path/to/availability/factors/timeseries.csv", index_col=0, parse_dates=True),
    price_timeseries=pd.read_csv("/path/to/prices/for/external/carriers.csv", index_col=0, parse_dates=True),
    explicit_prosumer_configuration=None,
    explicit_prosumer_timeseries_data=None,
    number_of_timesteps=None,
    include_base_load=True,
    results_folder=Path("/path/to/folder/for/output"),
)
```
Some intermediate information will be printed on `stdout`, and all final results will be stored in
the specified `results_folder`.


### External Usage Examples

Cronian can also be used to build smaller models to be used by other methods.
- Distributed optimization: [`demoses-ADMM`][admm-usage]
- Agent-based simulation: [`Annular`][annular-usage]


## Contributing

If you want to contribute to the development of `Cronian` software,
have a look at the  [contribution guidelines](CONTRIBUTING.md).

Further instructions can be found in[`README.dev.md`](README.dev.md)

## NOTE
The code is tested and compatible with python versions 3.10 and 3.11.

## Citation

For citation information, see [`CITATION.cff`](CITATION.cff)

<!-- Project URLs -->
[repo-url]:                 https://gitlab.tudelft.nl/demoses/cronian
[demoses-rsd]:              https://www.research-software.nl/projects/demoses
[Zenodo-url]:               https://doi.org/10.5281/zenodo.13142375

<!-- External URLs -->
[admm-usage]:               https://gitlab.tudelft.nl/demoses/demoses-admm/-/blob/main/src/demoses_admm/build_prosumer_agent.py?ref_type=heads
[annular-usage]:            https://gitlab.tudelft.nl/demoses/annular/-/blob/main/src/annular/satellite_model/optimizer_bidding_strategy.py?ref_type=heads
[fair-checklist]:           https://fairsoftwarechecklist.net/v0.2?f=31&a=32113&i=32300&r=133
[fair-software]:            https://fair-software.eu
[Pyomo]:                    https://www.pyomo.org

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