Hellisheiði Geothermal Exhibition: Entry and Audio Tour

Energy gets interesting here. At the Hellisheiði Geothermal Exhibition, you learn how Iceland turns heat beneath the earth into electricity and hot water. I like the clear interactive displays, and I like that you can move at your own pace instead of being pushed through with a group. The main drawback is simple: this is a self-guided exhibition, not a behind-the-scenes plant tour with a guide and hardhat.

The setting adds plenty. The plant sits beneath Mount Hengill, surrounded by lava fields, moss, and mountain views, about 20 minutes outside Reykjavík. I also appreciate the practical side: parking is free, the exhibition is wheelchair accessible, and you can stay as long as you like during opening hours. Bring a charged phone and headphones, though, because the audio guide runs through your own device.

Key points to know before you go

• Iceland’s geothermal process is explained step by step: The exhibition shows how underground heat becomes power and hot water for daily use.
• Stop 9 is the place to focus: The Production Process display gives you the clearest explanation of the industrial system.
• The audio tour keeps the visit flexible: You can pause, replay, and set your own pace in English or Icelandic.
• Carbfix adds a climate angle: A dedicated room explains how the plant works with Carbfix on carbon storage and climate solutions.
• The setting is part of the appeal: Viewing platforms let you look out toward Mount Hengill, lava fields, moss, and Icelandic mountain scenery.
• It suits curious adults and older children best: Younger children may need help with the more complex science.

What you are really visiting at Hellisheiði

This is not a traditional guided tour through the working machinery of a power station. It is an exhibition inside the Hellisheiði Power Plant, designed to explain what happens behind the walls and underground.

That distinction matters. You will not be issued a safety vest and hardhat for a short employee-led walk through the plant. You also should not expect close-up access to every massive pipe, turbine, or piece of industrial equipment. The experience gives you context rather than unrestricted plant access.

For many people, that is enough. The exhibition uses interactive displays, films, audio commentary, and clear explanations to show how Iceland uses its natural heat. The material is presented in a comfortable, clean setting, and you can take your time with the parts that interest you most.

I find this format especially useful if you have seen Iceland’s steaming ground, hot springs, or geothermal pools but never understood the machinery behind them. The exhibition connects those familiar sights to a much larger system of engineering and public infrastructure.

Getting to the plant beneath Mount Hengill

The exhibition is located at Hellisheiðarvirkjun, 801 Selfoss, Iceland, in the Southern Region. It is roughly 20 minutes from Reykjavík, making it a practical stop on a drive out of the capital.

You go directly to the entrance with your ticket. Free parking makes the visit easy by car, and there is no need to arrange a meeting with a tour leader. The host or reception staff can speak English or Icelandic, and the audio guide is available in both languages.

The approach gives you a sense of place before you even enter. The plant is beneath Mount Hengill, among dark lava fields, moss, and mountain scenery. This is working Iceland, not a polished city attraction. The raw surroundings help explain why geothermal energy feels so central here.

Opening times change with the season:

• From November 1 through March 31, the exhibition is open from 9 a.m. to 4 p.m.
• From April 1 through October 31, it is open from 9 a.m. to 5 p.m.

Start times are flexible, and you can stay as long as you like after entering. A visit of about an hour should give you a useful introduction, but the flexible format lets you spend longer with the displays if science and technology are your interests.

Start with the audio guide, then set your own pace

The audio tour is self-guided and works on Android and iOS devices. You should arrive with a charged smartphone and headphones. Those two items are important because the commentary is a central part of the visit.

I like the freedom of this system. You can stop when a video catches your eye, replay a section, or move ahead if a display feels too technical. You are not waiting for a group to gather, and you do not have to keep up with a guide’s walking speed.

The tradeoff is that the experience depends on your willingness to guide yourself. The audio commentary is informative, but the route can feel somewhat disjointed if you simply follow it without looking around. I suggest using the audio as a framework, then spending extra time at the displays that answer your own questions.

Reception staff are available if you need help. One staff member, Antonia, was specifically praised for answering questions clearly and helpfully. That personal assistance can make a difference, especially if you want to understand a technical point rather than just listen and move on.

Why Stop 9 deserves your attention

If you want the clearest explanation of how the plant works, make Stop 9, the Production Process display, a priority.

This section explains the industrial chain that turns underground heat into usable energy and hot water. It also helps you understand what you are seeing at the other displays. Instead of treating each exhibit as a separate fact, Stop 9 gives you the basic system that ties the whole visit together.

The subject can sound complicated at first. Geothermal energy involves underground heat, wells, water, steam, pressure, generators, and distribution. A good explanation needs to show how those parts relate to each other. Stop 9 is useful because it gives you a starting point before you get lost in the engineering details.

I would spend enough time here to understand the process before rushing through the rest of the exhibition. If you know little about geothermal power, this is the stop that turns the visit from a collection of screens into a coherent story.

The exhibition is particularly strong for people who enjoy science, engineering, or environmental technology. A science teacher could also find material worth carrying home for students. The displays explain a real operating system rather than presenting a vague message about being green.

Interactive displays that work for different ages

The interactive exhibits are one of the strongest parts of the visit. They give you something to do while explaining a subject that could otherwise feel dry.

Adults and teenagers can follow the technical information at their own level. Films and audio commentary add variety, so you are not reading wall text the entire time. The clean, modern presentation also makes the information easier to absorb than a basic industrial museum display.

Younger children may need some guidance. The ideas are not always simple, and a child may enjoy pressing buttons or watching a film without understanding how geothermal power actually works. If you are visiting with children, plan to explain the main ideas in plain language as you go.

A useful family approach is to focus on a few questions: Where does the heat come from? How does it reach the plant? How does the plant make electricity? What happens to the water afterward? You do not need an engineering degree to keep the visit engaging.

The Carbfix room and Iceland’s climate work

The Carbfix room adds an important second layer to the exhibition. Here you learn about the power plant’s partnership with Carbfix, a leading solution connected with the climate crisis and global warming.

This part is valuable because it moves beyond the basic question of how Iceland produces energy. It also asks how energy production can address its environmental effects. The partnership gives you a look at ongoing efforts to deal with carbon and climate concerns.

I would not treat this section as a separate attraction, but it strengthens the visit. Geothermal energy is often described as clean and sustainable, yet any major industrial system deserves closer questions. The Carbfix display encourages you to think about those questions rather than accepting a simple slogan.

The exhibition’s environmental message works best when paired with the engineering information. First you see how the plant functions. Then you consider the wider climate problem and the work being done to reduce its impact.

Viewing platforms and the scenery outside

The exhibition includes viewing platforms where you can look out at the surrounding Icelandic nature. These are worth using, even if you came mainly for the science.

The views give scale to the plant’s location. Dark lava fields, moss, mountain slopes, and Mount Hengill make it clear that the facility is not an isolated machine dropped into a city. It is built within an active volcanic region whose underground heat makes the whole operation possible.

The viewing platforms also provide a break from the displays. After listening to technical explanations, stepping over to look outside helps connect the ideas to the real terrain. You see the source environment, not just diagrams of it.

Weather will affect how much you enjoy this part. The exhibition remains useful in poor weather, but clear conditions make the surrounding scenery more rewarding. Since hours are longer in summer, that season gives you more flexibility for combining the visit with other stops.

What the visit does not include

It is important to arrive with the right expectations. This experience includes entry to the exhibition, a self-guided audio tour, and free parking. It does not include a live tour guide, food, or drinks.

The lack of a guide is the chief limitation. A self-guided format works well if you like reading, listening, and choosing your own route. It is less satisfying if you want an employee to walk you through the whole process or answer questions at each stop.

You also do not get a hardhat, safety vest, or a short guided visit inside the operational plant. That would provide closer views of the equipment and more chances to take photographs, but it is not part of this experience.

On the positive side, the self-guided approach means no fixed group schedule and no pressure to leave when a tour ends. Staff remain available for questions, and the exhibition itself gives you more control than a standard guided visit.

Is the $21 price fair?

At $21 per person, this is not the cheapest short stop in Iceland. It is also not an all-day guided excursion. You are paying for access to a specialized exhibition, the audio content, the interactive displays, and the chance to visit a working geothermal power plant setting.

The value depends on your interests. If geothermal energy, sustainability, engineering, or Icelandic infrastructure appeal to you, the price is reasonable. The exhibition gives you a subject that is hard to understand from sightseeing alone, and you can spend more than an hour if you want to examine everything carefully.

If you are only looking for dramatic scenery, the admission may feel less worthwhile. The views are a useful addition, but they are not the main event. This is an educational stop first.

The flexible entry also helps the value. You are not locked into a short time slot, and you can fit the visit around a drive near Reykjavík and Selfoss. With free parking and no separate guide fee, the cost is easier to justify for visitors who want a thoughtful indoor stop.

Who will enjoy Hellisheiði most?

I would recommend this exhibition to:

• Adults curious about how geothermal power works
• Teenagers interested in science, engineering, or climate issues
• Families willing to explain complex ideas to younger children
• Teachers and students looking for a real-world example of energy production
• Visitors who want more context for Iceland’s hot springs and geothermal culture
• Drivers looking for a flexible stop outside Reykjavík

I would be more cautious if you want an exciting outdoor adventure or a close-up plant tour. The exhibition is calm, educational, and self-paced. Its appeal comes from understanding the process, not from thrills.

The high rating of 4.6 from 88 reviews fits the experience well. The most praised elements are the clear explanations, interactive presentation, clean facility, helpful staff, and freedom to move at your own speed. The repeated concern is also consistent: some people want a live guide rather than an app and audio commentary.

Practical advice for a smoother visit

Charge your phone before you arrive. Downloading or accessing the audio guide will be much easier with a full battery, and you will want headphones for the commentary.

Give yourself at least an hour if you want to listen carefully, watch the films, and pause at the interactive displays. Start with Stop 9, then explore the other sections with a better understanding of the production process.

Ask staff questions. The tour is self-guided, but that does not mean you are entirely on your own. Reception staff can help, and Antonia was specifically praised for taking time with questions.

Plan around the opening season. Winter hours end at 4 p.m., while summer hours continue until 5 p.m. The activity is valid for one day, with flexible starting times, so you can fit it into a larger route without committing to a rigid departure.

You can cancel up to 24 hours in advance for a full refund, and the reserve now, pay later option keeps your schedule flexible. Those policies are useful if Icelandic weather or road plans change.

Should you book the Hellisheiði exhibition?

Book it if you want to understand how Iceland’s geothermal system works, not just admire the country’s hot water and volcanic scenery. The best parts are the Production Process display at Stop 9, the interactive exhibits, the Carbfix room, and the ability to explore without a fixed group timetable.

Skip it if your main goal is a guided plant walk, machinery access, or an outdoor adventure. You will not get the hardhat tour some people imagine.

For the right audience, $21 buys a clear and worthwhile lesson in Icelandic energy, with helpful staff, free parking, and a scenic setting. I would plan about an hour, bring headphones, and treat Stop 9 as the essential starting point.

FAQ

Where is the Hellisheiði Geothermal Exhibition?

It is at The Geothermal Energy Exhibition, Hellisheiðarvirkjun, 801 Selfoss, Iceland, roughly 20 minutes outside Reykjavík.

How long does the visit take?

The activity is valid for one day, and you can stay as long as you like after entering during opening hours. Allowing about an hour gives you time to see the main displays, films, and audio content.

Is the tour guided by an employee?

No. The experience is self-guided through an audio tour. On-site staff are available if you have questions.

What languages are available?

The audio guide is available in English and Icelandic. Host and greeter assistance is also offered in English and Icelandic.

What should I bring?

Bring headphones and a charged smartphone for the audio guide.

Is the exhibition wheelchair accessible?

Yes, the exhibition is wheelchair accessible.