8 MW. Hellfest Open Air — what's behind it?
25 megawatts. Just for the main stage. Hellfest Open Air: MW, in Clisson, France. From Stromfee Music Festivals report.

What's behind it
France's heaviest festival: 6 stages, 8 MW — now with batteries instead of pure diesel.

Location & Technology
Operator:
Location: Clisson, France
Power: MW

Stromfee Take
This is where the lever sits: Transparent HVAC with Stromfee AI. We make every inverter, every cell, every register visible — container to single cell. At this scale, 5–15% HVAC savings is industry standard. Plus the BESS Optimizer: power-market revenue + peak shaving + backup in one.

Stromfee apps in your language: stromfee.app (DE · EN · ES · FR)
Sources
Frequently Asked Questions
What is Hellfest Open Air?
Hellfest Open Air is a music festival held in Clisson, France, requiring 8 MW of power.
Where does the information about Hellfest come from?
The details are sourced from a report by Stromfee Music Festivals.
How much power does the main stage at Hellfest require?
Just the main stage at Hellfest Open Air requires 25 megawatts.
What ranking does Hellfest Open Air have among music festivals?
Hellfest Open Air is listed as being within the Top 25 Music Festivals.