Distribution Transformation Tool (DiTTo)

DiTTo is an open-source many-to-one-to-many converter for electrical distribution system models. It reads models from various industry-standard formats, builds a validated intermediate representation using Grid-Data-Models (GDM), and writes them back to any supported output format.

Architecture

        flowchart LR
    A["Source Format\n(OpenDSS, CIM, …)"] -->|Reader| B["GDM\nDistributionSystem"]
    B -->|Writer| C["Target Format\n(OpenDSS, …)"]
    B -->|Serialize| D["JSON on disk"]
    

Readers parse source files into GDM components.
Writers export a GDM DistributionSystem to a target format.
The intermediate GDM representation can also be serialised to JSON for inspection or re-use.

Supported Formats

Format	Reader	Writer
OpenDSS	✅	✅
CIM IEC 61968-13	✅	✅

Quick Start

pip install nrel-ditto

from ditto.readers.opendss.reader import Reader

reader = Reader("Master.dss")
system = reader.get_system()
reader.to_json("model.json")

See the Installation and Usage pages for full details.

Contributors

• Tarek Elgindy

• Aadil Latif

• Kapil Duwadi

• Daniel Thompson

• Jeremy Keen