Challenges 2026
Learn more about our hackathon challenges.
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1 - Swiss GlassScan: Estimating the Window-to-Wall Ratio of buildings for improving energy consumption models
Extract Window-to-Wall Ratios from Street View to build the first windows database for Swiss energy consumption…
2 - Estimating Hourly Energy Production for Switzerland
How can we derive consistent hourly electricity production data for Switzerland by combining ENTSO-E data with daily…
3 - GridPulseMT
Develop a day-ahead load forecasting model for medium-voltage substations within a defined distribution area, using…
4 - Designing pocket and grid-friendly electricity communities
Find beneficial ways to configure local electricity communities (vZEVs) so that they are not only economically…
5 - How Can Energy Transition Impact Switzerland’s Imbalance Evolution?
Switzerland’s power system is entering a new era. The rapid growth of solar PV, electric vehicles, heat pumps and…
6 - Predicting Lausanne thermal network’s future – understand Lausanne’s buildings decarbonization via district heating
The goal of this challenge is to predict the future district heating network demand given climatic and retrofit…
Become a challenge-owner and submit a challenge!
FAQs for Challenge-Owner
Have a great idea? We want to hear it! Anyone is welcome to submit a challenge for the Hackdays.
To ensure the event is sustainable, we prioritize challenges from our partners and sponsors. However, we still consider independent submissions—so if your idea is a great fit, please send it our way! While we can't promise a spot for every non-affiliated entry, we value your contribution to the innovation ecosystem.
Ready to get started? You can submit your challenge via our online form—the process is quick and straightforward.
To help you craft a compelling proposal, we’ve put together a step-by-step guide to assist you along the way: 👉 View the Challenge Submission Guide
Please note: While we welcome all ideas, submitting a challenge does not guarantee inclusion in the final event unless you are an official partner or sponsor
To ensure the successful resolution of our challenges, the use of relevant data sets is essential. In most instances, Challenge Owners are expected to provide their own data for processing.
For security and compliance reasons, all data must be processed exclusively using the programs and servers provided within the event network.
The documentation of the challenges will be published on GitLab and our Webiste.
The data used for the solution will not be published.
Take a look at the past projects:
Archive
The challenges and their results are freely accessible and will be published and archived on this website
They will be made available to interested parties (universities, engineering offices, developers, challenge owners, participants in the hackdays) for further use.
Primarily with the challenge owner. Publishing the documentation would theoretically make it possible to use them, but this has not yet been done. Complete solutions are also rarely developed as part of hackdays. Rather, they are approaches and MVPs.
Data & Data Sets:
Publicly accessible data sets remain publicly accessible. If challenge owners provide their own data for processing the task, this is generally only available for the event (or their own challenge). The challenge owner can also make certain data sets available for other events depending on their own governance requirements and make these sets freely available.
Models:
This depends heavily on the challenge owner and the challenge itself. The documentation of the challenges is published on Github and on the SwissEnergy website. This means that they are not only available to the challenge owner. As a rule, the challenge owners take the results of the hackdays back with them and use them internally for further development > Sense and added value of open innovation.
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