TEMPO

TEMPO is a desktop application developed at the Deggendorf Institute of Technology that makes it easy to build, run, and visualize Calliope energy system optimization models — without writing YAML by hand.

What it does

TEMPO takes you through the entire modelling workflow in one place:

  1. Define your energy system — add locations, transmission links, and technologies using form-based screens.
  2. Visualize it on a map — see your model topology overlaid on real geographic data, including OpenStreetMap power infrastructure (substations, power plants, transmission lines).
  3. Run the optimizer — submit the model to the Calliope solver and watch the log stream live.
  4. Inspect results — explore the optimization output in the built-in results view.
  5. Export — download a fully Calliope-compliant YAML package ready for independent use on the command line.

Key features

Feature Description
Interactive map MapLibre GL + Deck.gl rendering of model topology and real OSM infrastructure
Technology library Pre-built YAML templates for solar, wind, storage, hydrogen, conventional, and transmission technologies
Bulk import Import locations and links from CSV in one step
Live solver log Real-time log output from the Calliope Python process
Multi-model management Create, switch between, and compare multiple models and scenarios
YAML / ZIP export Export clean, Calliope-ready files at any time
GeoServer integration Optional vector tile layers from a local GeoServer instance

Architecture overview

┌─────────────────────┐    HTTP (localhost:8082)    ┌──────────────────┐
│  React 19 frontend  │ ─────────────────────────▶  │   Go REST API    │
│  (Vite + MapLibre)  │                             │   + SQLite DB    │
└─────────────────────┘                             └──────────────────┘
          │                                                  │
     Electron shell                                  spawns Python
     (desktop app)                                   calliope_runner.py

Quick navigation

- :material-download: **[Installation](/TEMPO/getting-started/installation.html)** Install on Windows using the desktop installer or run in dev mode. - :material-rocket-launch: **[Quick Start](/TEMPO/getting-started/quick-start.html)** Build and run your first energy model in minutes. - :material-map: **[Map Interface](/TEMPO/map/map-interface.html)** Explore the geographic view and OSM infrastructure layers. - :material-code-braces: **[Development Setup](/TEMPO/development/setup.html)** Set up the full development environment.

!!! info “Calliope documentation” This documentation covers the TEMPO application. For the underlying Calliope framework, see the official Calliope documentation.

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