Add the electricity load as a sink in the complex example

[Malte96]

Description

In the example (Complex example), the electrical demand has not yet been included but is mentioned.

Type of Change

• Bug fix
• New feature
• Documentation update
• Code refactoring

Related Issues

no Issue

Testing

• I have tested my changes
• Existing tests still pass

Checklist

• My code follows the project style
• I have updated documentation if needed
• I have added tests for new functionality (if applicable)

Summary by CodeRabbit

Release Notes

• Documentation
  • Updated complex example with new electricity demand sink component demonstrating demand-driven load modeling using relative demand profiles
  • Shows integration of the load component within the flow system alongside existing system elements for comprehensive energy modeling

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[coderabbitai]

Walkthrough

A new electricity demand sink component with fixed relative profile is introduced to a complex example, tied to the electricity demand and integrated into the flow system and build sequence.

Changes

Cohort / File(s)	Summary
Electricity demand sink addition examples/02_Complex/complex_example.py	Introduces electricity_load component linked to Strom bus with fixed relative profile; component added to flow system and included in public flow build sequence.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~5 minutes

• Straightforward component addition to an example file with consistent construction pattern (similar to existing Waermelast component)
• Single file modified with no logic complexity or structural reorganization

Poem

🐰 A spark dances upon the Strom,
Electricity_load finds its home,
In flow and profile, steady and bright,
The system glows with added delight! ⚡

Pre-merge checks and finishing touches

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and specifically describes the main change: adding an electricity load sink to the complex example.
Description check	✅ Passed	The description follows the template structure with all major sections completed, though testing confirmation for existing tests is incomplete.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

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📜 Recent review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 423496a and 7acaa60.

📒 Files selected for processing (1)

• examples/02_Complex/complex_example.py (2 hunks)

🔇 Additional comments (2)

examples/02_Complex/complex_example.py (2)

159-170: Electricity load sink is consistent with existing demand modeling

Using electricity_load as an fx.Sink on bus 'Strom' with fixed_relative_profile=electricity_demand mirrors the Waermelast pattern, and the profile length matches timesteps, so this integrates cleanly into the example.

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197-200: Inclusion of electricity_load in flow_system.add_elements looks correct

Adding electricity_load alongside Waermelast and the other components ensures the new sink is part of the optimization model; the ordering is consistent with the surrounding example structure.

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