courses/2025_Research_Software_Engineering_2/docs/slides.md

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true	uncover	invert	true	false		14.07.2025 / University of Potsdam / Flora Grellmann, Joaquin Gottlebe, Mirjam Rupinski

Germany’s Solar Potential Theory vs. Reality

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Research Questions

1. To what extent can theoretical solar energy production be estimated?

2. How does the theoretical energy production compare to the actual energy production?

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Modules

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Non functional requirements

Compatibility: The workflow must run on Windows Mac OS and Linux. Documentation: The documentation is for users and developers. Reproducibility: The workflow must be reproducible. Testability: The code must be well tested.

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Workflow: Part 1

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Workflow: Part 2

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Dataset

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Dataset	Origin	Data format	API	Link	Licence
Solarparcs & Germany	Open Street Maps	OSM XML	OverpassAPI	openstreetmap.org	© OpenStreetMap contributors
Sunshine Duration	DWD	TXT	-	opendata.dwd.de	CC-BY-4.0
Actual Energy	DESTATIS	CSV or XML	-	genesis.destatis.de	Data Licence Germany 2.0

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Created Tools

Stage	Tool
Data Acquisition	wgetdir.py
Data Processing	clip.py
	merge_series.py
	clean_pv_data.py
	polygons2area.py
	collapse_columns.py
	trim.py
	calculate_energy.py
	calculate_difference.py
Data Visualization	plot_geo.py
	plot_yearly_change.py
	plot_monthly_change.py
	plot_difference.py

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Results - Solarparcs Area

• Total area: 16.000 km^2

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Results - Sunshine Duration

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Results - Theoretical Energy

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Results - Actual Energy

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Results - Difference

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Reflection

Worked well

• Working with workflows (Snakemake)
• Working with Issues and Tasks as a group
• Review process
• Access to relevant data

Challenges

• Defining clear roadmap
• Group communication
• Working with licences

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Not included

• Analysis of monthly change

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Thank you for you attention.

Why do you think the theorical and actual energy diverges more in earlier year?