Challenges 2025

Learn more about our hackathon challenges.

Important note:
We welcome all challenge submissions – whether you're an organization, a startup, a researcher or an individual with a great idea. However, please note that only challenges submitted by official partners or sponsors are guaranteed to be included in the event.

All other proposals will be reviewed and considered, but we cannot guarantee inclusion in the final event program.

➡️ Click here to view the submission guide

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Total 13 challenges
CKW

1 - Modeling PV Production with Machine Learning

Develop a machine learning model to estimate the energy production of small photovoltaic systems (<30kWp) using…
14.07.2025
Bundesamt für Energie BFE

10 - Watts & Wallets: Visualizing Energy & Money Flows in Switzerland’s Power Market

The Swiss electricity market is a complex system where both money and energy flow through multiple actors. Based on…
25.08.2025
smart Y Energy Solutions GmbH

11 - Let's take load profile data analysis to the next level

Imagine taking an existing clunky energy-data tool and turning it into a sleek, cloud-powered analytic machine.…
29.08.2025
HEIG-VD

12 - Predict Imbalance Price

building the best predictive model to estimate reliably the grid's imbalance price based on historical and forecast…

25.08.2025
Primeo Energie

13 - Predict the production of distributed PV-assets

🌞 Your task is to predict the total solar production of thousands of hidden PV systems across Switzerland. Armed only…
01.09.2025
swissgrid

2 - Decoding the Sun

From solar chaos to grid control: The AI Solution.

Can PV data help us ensure grid stability?

15.07.2025
Energy Science Center

3 - Deciphering Energy Scenarios

Energy scenarios play a crucial role in informing public policy and companies about potential future developments in…
16.07.2025
BKW

4 - Smart Design of Resilient Local Energy Communities

Can we empower communities to finally break the energy trilemma—maximizing renewables, increase autarky, and…
17.07.2025
Akenza AG

5 - Watt the Graph?! – Energize Data with GraphQL & Visual Magic

Tap into the power of energy meter data from the akenza platform and transform it into something electrifying! In this…
23.07.2025
EKZ

6 - The dynamic tariff adoption challenge - What’s in it for me?

How can we turn dynamic tariffs into something customers want - not just understand, but actively choose because it…
29.07.2025
St.Galler Stadtwerke (SGSW)

7 - Data-Driven Expansion of a City-Wide LoRaWAN Network

St. Galler Stadtwerke (sgsw) operates its own LoRaWAN network within the city of St.Gallen, using dozens of…

07.08.2025
NCCR Automation

8 - Energy Community Match-Making

Register your interest to join a LEG and find like-minded people on our platform.
15.08.2025
AEW Energie

9 - Forecast for Building management flexibility

The intelligent use of flexibility will become a key component for sustainably combining the energy transition and…

21.08.2025

Become a challenge-owner and submit a challenge!

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FAQs for Challenge-Owner

Absolutely! We encourage anyone with a relevant idea to submit a challenge.

That said, priority is given to challenges submitted by our partners and sponsors.
If you’re not affiliated, your submission will still be considered – but we can’t promise inclusion in the final lineup.

You can submit your challenge using our online form – it’s quick and easy.
We’ve put together a step-by-step guide to help you through the process.

👉 Click here to view the submission guide

Please note: submitting a challenge does not guarantee inclusion in the final event unless you are an official sponsor or partner.

The organizers provide a correspondingly high-performance infrastructure, but cannot fully guarantee that the data provided will not be processed in accessible cloud computing services (e.g. for AI applications, etc.).

  • Either all participants of the Hackdays or only the members of the Challenge
  • Challenge members can also sign NDAs if required.

Data sets should contribute to solving the challenges. As data sets are required to solve tasks, the challenge owner's own data sets are necessary for processing in most cases. Data may only be processed on programs and servers within the network provided

The documentation of the challenges will be published on Github and on the SwissEnergy website. 
The data used for the solution will not be published.

The challenges and their results are freely accessible and will be published on the homepages of opendata.ch and the BfE (Swiss Federal Office of Energy) after the event. 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.

  • In the case of sensitive data, the organizers recommend
    • a separate smaller event exclusively with the challenge owner or
    • an NDA which has to be signed with the challenge participants upfront

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The Organizers

Co-Organizer