How Volt runs lockers and charging at Copenhell, Denmark's biggest metal festival

Copenhell fills Refshaleøen, a former shipyard island in Copenhagen harbour, every June with four days of heavy music. Around 39,000 festival goers a day come through the gates, and the 2026 edition sold out every ticket type and broke the festival's own attendance record, with roughly a quarter of the crowd attending for the first time. Volt runs Event Lockers, the Volt Charging Service, and a combined locker plus charging bundle at the event. Here is what that operation looks like on a compact site, and why the bundle format fits a festival where the same crowd is back every day.

The festival in numbers

Copenhell launched in 2010 at Refshaleøen. The 2026 edition ran June 24-27 across four stages and featured over 70 Danish and international acts, with the festival site open from midday each day and running past midnight. Camping opens a day early: Kløverparken and Sønder Hoved open at 16:00 the Tuesday before, so part of the crowd is already on site with kit to store before the main stages start.

The crowd at a metal festival arrives prepared. Four days of outdoor shows means planning phone power for photos, set times, navigation and contactless payments, deciding what to carry through a crowd, and finding somewhere secure to leave a bag when you move to the front. Storage demand at Copenhell is high and predictable year to year.

What Volt runs at Copenhell

Three products cover the operation at Copenhell 2026.

Event Lockers

Personal storage with a code sent to the festival goer by email and SMS just before their slot opens. The lockers sit under cover, measure roughly 30 x 30 x 50 cm, and can be opened and re-locked freely throughout the day with no extra cost per access. Single-day and full-festival booking options are both available. The locker has no power outlet: charging is handled by the separate product below.

Volt Charging Service

The staffed rental product. Festival goers collect a pocket-sized Volt-Charger at a Volt booth on site, pay a refundable deposit, and swap it for a fully charged one once per day at a Volt swapping station. No searching for a free socket, no leaving a phone unattended. The Volt-Charger keeps working in a pocket while the festival goer moves between stages.

Locker plus charging bundle

Both products available as a single booking. At Copenhell 2026 the full-festival bundle was listed at 399 DKK, with a 175 DKK deposit paid at pick-up for the Volt-Charger. For a four-day event the bundle removes the need to book and manage two separate things before arrival, and it locks in the better pre-event price for both.

How the bag rule connects to the Volt operation

Copenhell's official practical information page states that all bigger bags must be stored in one of Volt's lockers. That integration between the festival's own entry guidance and the Volt booking flow makes a real difference to uptake. When the organiser's communication points festival goers directly to the service, the friction of discovery disappears before anyone arrives on site, which matters more than usual in a year when a quarter of the crowd had never been to Copenhell before.

Why the bundle fits a festival where the same crowd is back every day

Copenhell's 4-day passes sold out first, roughly a month before the single-day tickets that stayed on sale into June. That means most of the daily attendance figure is the same people coming back across all four days, not a rotating single-day crowd. A metal audience also tends to commit: camera use is constant, apps handle payments and schedules, and group messaging runs all day, so phones lose charge quickly.

The locker plus charging bundle addresses the two most common practical problems at this type of event in a single pre-arrival booking, and because it is the same festival goer returning to the same locker and the same charger each day, one booking covering the whole run fits better than four separate single-day transactions.

For an organiser, running both services through one operator means one contract, one service footprint, and a single point of contact for the logistics festival goers ask about most. Volt manages the booking relationship with the festival goer from pre-event purchase to on-site collection. The organiser's own communications point in the same direction, which is what the Copenhell practical information page demonstrates.

What this means for other genre music events

The Copenhell model is a useful reference for any multi-day genre event in Denmark or the wider Nordic market. Three things in particular transfer directly to similar deployments.

First, linking the official practical information page to the Volt booking flow reduces the organiser's support load and shortens the festival goer's search path, which matters even more when a large share of the crowd is new to the event. Second, a locker plus charging bundle captures bookings that would otherwise split across two separate gate transactions or get skipped entirely. Third, Volt's per-day and full-festival duration options mean the same product range fits a three-day, four-day, or longer format without a separate configuration for each variant, whether the site is a single-stage venue or the four-stage layout at Copenhell.

Volt ran over 120 festivals and events in 2026 across six countries, with more than 40 deployments in Denmark. See the full Copenhell festival guide for what the event looks like from a festival goer's side, or how Volt runs a longer, larger deployment in the Roskilde Festival case study. Organisers at genre music events thinking about a similar setup can reach the Volt team via the for organisers page or at hello@getvolt.dk.

The next edition

Copenhell's own site confirms the next edition for June 23-26, 2027, back at Refshaleøen. Lineup and ticket sales were not yet announced at the time of writing, so check the festival's own page for this year's on-sale dates rather than a fixed date here. The same Event Lockers, Volt Charging Service, and bundle format that ran in 2026 are the expected shape of the 2027 operation.

Frequently asked questions

What lockers does Volt run at Copenhell?

Volt runs Event Lockers with personal access codes sent by email and SMS before each slot. Festival goers can open and re-lock freely during opening hours. Single-day and full-festival options are both available at Copenhell.

Does Copenhell require bags to be stored in lockers?

Yes. Copenhell's official practical information page states that all bigger bags must be stored in one of Volt's lockers on site.

How does the Volt Charging Service work at a four-day festival like Copenhell?

Festival goers rent a Volt-Charger at a staffed Volt booth, pay a refundable deposit, and swap it for a fully charged one once per day at Volt swapping stations. The charger works in their pocket between stages. At the end of the festival they return it for the deposit refund.

Why does a locker plus charging bundle suit a multi-day ticket format?

Copenhell's 4-day passes sold out weeks before its single-day tickets did, so most of the crowd is on site for the whole run rather than rotating daily. A single pre-event booking that covers both storage and charging for the full festival removes two separate transactions for a festival goer who is coming back to the same locker and the same charger every day.

Can other genre music events in Denmark book a similar Volt setup?

Yes. Volt runs over 120 festivals and events across six countries, with more than 40 deployments in Denmark each year. Organisers can start a conversation at resources.getvolt.dk/for-organisers/ or at hello@getvolt.dk.

When is the next Copenhell?

Copenhell's own site confirms June 23-26, 2027 at Refshaleøen. Lineup and ticket sales are not yet announced, so check the festival's own page for this year's on-sale dates.