Reviewed · MUSEUMS
Hellisheiði Geothermal Exhibition: Entry and Audio Tour
Iceland’s geothermal power story becomes clear at Hellisheiði, where an operating power plant turns heat beneath Mount Hengill into electricity and hot water. The interactive exhibits explain the process without assuming you already know the science. Stop 9, Production Process, is the best place to begin if you want the full industrial picture.
I like the freedom of a self-guided visit, since you can move at your own pace and stay as long as you like after entering. I also like the blend of films, audio commentary, viewing platforms, and hands-on displays. The main drawback is just as clear: this is not a guided plant tour, and the audio guide can feel somewhat disjointed if you want one person to connect every part of the story.
Key points to know before you go

- See an operating geothermal power plant: Hellisheiði produces electricity and hot water beneath Mount Hengill.
- Start at Stop 9: The Production Process display helps make sense of the other exhibits.
- Use your own phone: Bring a charged Android or iPhone and headphones for the audio tour.
- Allow about an hour: You can move quickly, but the films and interactive displays reward a slower visit.
- Learn about Carbfix: A dedicated room explains how carbon dioxide can be stored underground.
- Easy road-stop access: The exhibition is about 20 minutes from Reykjavík, with free parking and wheelchair access.
Why Hellisheiði is more than a power plant photo stop

At first glance, a geothermal plant may sound like a niche attraction for engineers. Hellisheiði makes the subject much easier to grasp. You see how Iceland uses heat from the earth for two basic needs: electricity and hot water.
That matters because geothermal energy is not an abstract idea here. It is part of daily life. The exhibition shows the chain from underground heat to practical energy, along with the drilling, engineering, and research needed to make the system work.
The plant sits beneath Mount Hengill, surrounded by lava fields, moss, and mountain scenery. The setting gives the visit a useful sense of place. You are not looking at a model in a city museum. You are learning beside a working facility in the region where the heat is being used.
The attraction is rated 4.6 from 88 published ratings, and the strongest praise focuses on the same points: clear explanations, excellent audio and visual material, clean facilities, and interactive displays that work well for adults and older children. That praise fits the experience’s main strength. It teaches without turning the visit into a classroom lecture.
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Getting there from Reykjavík

The Hellisheiði Geothermal Energy Exhibition is roughly 20 minutes outside Reykjavík, at Hellisheiðarvirkjun, 801 Selfoss. You go directly to the exhibition entrance with your ticket, and parking is free.
That short drive makes this a practical addition to a Reykjavík sightseeing day. You do not need to commit to a full-day excursion or a fixed coach schedule. If you have a car, you can stop here on a route toward Selfoss or other parts of southern Iceland.
The surroundings also make the stop worthwhile for anyone who enjoys Iceland’s volcanic scenery. You will see lava fields, moss, and mountain views around the plant, with indoor viewing platforms adding another way to look out at the area.
The attraction is open from 9 AM to 4 PM in winter, from November 1 through March 31. Summer hours, from April 1 through October 31, run from 9 AM to 5 PM. Start times are flexible, and you can remain inside as long as you like after entering.
Begin with the Production Process

The exhibition has several stops, but I would go straight to Stop 9, called Production Process. One visitor specifically found this the best starting point because it explains how thermal power and hot water are extracted from the earth.
That advice is useful. Geothermal energy can sound simple: hot water comes from underground, and the heat makes power. The real system involves wells, pressure, steam, water, heat exchange, generators, and careful management of underground resources. The Production Process display gives you the framework needed to understand those steps.
Once you have that basic chain in mind, the other displays make more sense. You can connect the technical parts to Iceland’s wider use of geothermal resources. You also gain a better sense of why the plant required major research, engineering, and investment.
Plan enough time here to read and listen instead of treating it as a quick introductory panel. If you only have a short visit, this is the stop I would protect.
Interactive displays explain the science clearly

The interactive exhibits are the heart of the visit. You can use them to explore the geothermal process in a more active way than simply reading wall text.
The displays are designed for a broad age range. Adults can focus on the engineering and energy questions, while children and teens can use the visual and hands-on parts to follow the basic ideas. Younger children may need help from an adult because the full process can be complex.
The presentation is comfortable and easy to follow, especially if you are new to geothermal energy. Several people praised the clear explanations, and that is important here. The subject includes plenty of technical terms, but the exhibition gives you a manageable route through them.
I would not expect every display to hold your attention equally. Some parts will appeal more to science and technology fans than to people who simply want a scenic stop. Still, the variety of films, interactive material, and audio commentary keeps the visit from feeling like one long information board.
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Use the audio guide at your own speed

The self-guided audio tour is included in English and Icelandic. You use your own charged smartphone, so bring headphones. The guide lets you choose your pace, pause when you want, and spend more time at the stops that interest you.
This format suits independent visitors. You are not tied to a group, and you do not need to keep up with a guide. It also works well if members of your party have different interests. One person can spend extra time with the technical displays while another looks at the films or views.
The main weakness is organization. The audio content has been described as informative but somewhat disjointed. That does not make it useless, but you may find it easier to understand if you read the exhibition layout first and use Stop 9 to establish the basic process.
I would also keep your own questions in mind as you listen. For example, ask yourself how heat becomes electricity, how hot water is supplied, and how carbon management fits into the system. A little active attention makes the audio guide more useful.
The on-site staff can answer questions, even though they do not provide a standard guided tour. Staff member Antonia was singled out for being helpful with questions. If you want to ask about a display, the plant, or the Carbfix work, do not hesitate to speak with the reception team.
The Carbfix room adds an important climate angle

A dedicated Carbfix room explains the plant’s partnership with Carbfix. Carbfix is presented as a solution connected to climate change and global warming, with a focus on storing carbon dioxide underground.
This section broadens the visit beyond the simple message that geothermal power is green. It asks a harder question: how can energy production deal with emissions and climate concerns? That makes the exhibition more current and more useful than a basic explanation of Iceland’s hot springs and power stations.
The Carbfix material may be especially interesting if you follow environmental technology or want to understand how Iceland is working on carbon storage. You will not just see how energy is produced. You will also learn about a related effort to address carbon in the atmosphere.
As with the rest of the exhibition, this is an educational display rather than a hands-on industrial tour. You will learn about the partnership through the exhibition, not by entering every part of the plant or watching a formal demonstration.
Films and viewing platforms break up the technical material

The audio guide is not the only way information is presented. Films and A/V material help explain the subject visually, which is useful when the written and spoken information starts to feel dense.
You can also use viewing platforms inside the exhibition to look toward the surrounding Icelandic scenery. This gives the visit a welcome change of pace. After studying the production process, you can pause and take in the lava fields, moss, and mountain setting around Hellisheiði.
Photography and equipment viewing are somewhat limited compared with what you might expect from a hardhat plant visit. The exhibition does not include a standard guided walk inside the power plant, and you should not arrive expecting safety vests or close access to massive machinery.
That is the central difference between this attraction and an industrial plant tour. You learn how the facility works, but from the exhibition space and its viewing areas. For many people, that is enough. If your main goal is to stand beside turbines, pipes, and drilling equipment, you may find the visit less hands-on than expected.
How long should you spend there?

The experience is sold with one-day validity, but that does not mean you need a full day at the exhibition. A visit of about an hour should give you time to see the main displays, listen to the audio guide, and watch some of the films.
You can stay longer if the subject holds your interest. Science teachers, engineering fans, and anyone curious about energy systems may want extra time with the production displays and Carbfix section. You can also move at a brisk pace if you are fitting the stop between other activities.
The self-paced design removes much of the usual pressure. There is no fixed tour departure to catch once you have entered. You can pause for the views, return to a display, or ask the staff a question without holding up a group.
For a family, I would allow more than an hour if children are using the interactive exhibits. Younger children may need an adult to explain why the process matters and how the different stages connect.
Is the $21 entry fee good value?

At $21 per person, Hellisheiði is not an expensive Iceland attraction, but it is also not a quick free stop. The value depends on what you want from the visit.
I think the price works well if you enjoy science, technology, energy, or environmental topics. You receive entrance, the audio tour, access to the interactive displays, the films, the Carbfix room, indoor viewing platforms, and free parking. You also get the freedom to stay beyond a fixed presentation time.
The value is less certain if you only want a dramatic view or a brief look at industrial machinery. The surrounding scenery is appealing, but the main purpose is education. You are paying for interpretation and access to the exhibition, not for a guided engineering tour inside the plant.
Compared with a full-day excursion, the cost is modest and the time commitment is small. It can be a smart add-on to a driving day, particularly because you can choose your arrival time during opening hours.
Who will enjoy this experience most?
I would recommend Hellisheiði to:
- Adults who want a clear explanation of geothermal power.
- Science and technology enthusiasts.
- Teachers looking for material that can connect with classroom topics.
- Families with older children and teens.
- Visitors interested in Iceland’s environmental work.
- Independent drivers who want a flexible stop near Reykjavík.
The attraction is especially strong for anyone who wants context behind Iceland’s reputation for renewable energy. It shows the practical systems behind that reputation, not just the natural hot springs and volcanic scenery.
Younger children can still enjoy the interactive parts, but you may need to guide them through the more complex displays. If you prefer a personal storyteller, a guided tour, or close access to plant machinery, this format may not meet your hopes.
The exhibition is wheelchair accessible. The audio content is available in English and Icelandic, and the host or greeter support is listed in those languages.
What to bring and how to prepare
Bring a charged smartphone and headphones. Your phone is part of the audio-tour setup, so a low battery can make the visit less convenient.
Wear normal clothing suited to your wider Iceland day. The exhibition is indoors, but you will want to enjoy the outdoor scenery and viewing areas around the plant. Food and drinks are not included, though they are available to purchase on-site.
Before you enter, decide how much time you have. If you only have an hour, begin with Stop 9, then choose the interactive displays and the Carbfix room. If you have longer, listen to the full audio tour and give yourself time for the films and viewing platforms.
The cancellation terms are flexible: you can cancel up to 24 hours before the activity for a full refund. You can also reserve now and pay later, which helps if your Iceland schedule depends on weather or road conditions.
Should you book Hellisheiði?
Book it if you want to understand how Iceland turns geothermal heat into usable electricity and hot water. The exhibition is clear, flexible, accessible, and well suited to curious adults, teens, and families. The price is fair for an hour or more of thoughtful, self-paced learning.
Set your expectations correctly. You are not joining a guided walk through the machinery, and there is no hardhat-and-safety-vest plant inspection included. You are visiting an interactive exhibition beside a working geothermal facility.
My practical plan would be simple: arrive during the opening hours, go first to Stop 9, use the audio guide with your own headphones, ask the staff questions, and save time for the Carbfix room and the viewing platforms. If that sounds more interesting than a standard sightseeing stop, Hellisheiði is worth the detour.
FAQ
Where is the Hellisheiði Geothermal Exhibition?
The exhibition is at Hellisheiðarvirkjun, 801 Selfoss, Iceland, in the Southern Region. It is roughly 20 minutes outside Reykjavík, beneath Mount Hengill.
How much does entry cost?
Entry costs $21 per person.
How long does the experience last?
The booking is valid for one day, and you can stay as long as you like after entering during opening hours. Many people can see the main exhibition in about an hour.
Is the tour guided?
No. The experience is self-guided with an audio tour. On-site staff are available to answer questions.
What languages are available?
The audio guide is available in English and Icelandic. Host or greeter support is also listed in English and Icelandic.
Do I need to bring anything?
Bring headphones and a charged smartphone for the audio guide. Food and drinks are not included, but you can purchase them on-site.
When is the exhibition open?
From November 1 through March 31, winter hours are 9 AM to 4 PM. From April 1 through October 31, summer hours are 9 AM to 5 PM.
Is parking available?
Yes. Free parking is included.
Is the exhibition wheelchair accessible?
Yes. The exhibition is wheelchair accessible.
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