REVIEW · ICELAND
Geothermal Energy Exhibition Entry Ticket
Hellisheiði is not a standard power-plant tour. You do not walk through the working facility, but you can look into its turbine halls, study the pipe systems and cooling towers, and see how Iceland turns underground heat into electricity and hot water. The exhibition makes a technical subject easy to grasp through hands-on displays and clear visual explanations.
I like the freedom to spend 45 minutes here or stay closer to two hours, depending on your interest. I also like the free parking and the fact that the exhibition fits neatly into a South Iceland road trip. The main consideration is simple: if you expect a guided walk inside the operating plant, this is not that experience.
Key points to know before you go

- See inside the turbine halls: Look into the high- and low-pressure turbine areas from the third floor, though you cannot enter the working plant.
- Use the audio guide: Download it through the code at the front desk or use the ON Geothermal Exhibit app for much more detail than the display panels alone.
- Try the water and steam controls: An interactive display shows how cold water, hot water, and steam move through the process.
- Learn about carbon sequestration: The multimedia presentation explains how Iceland is working with carbon capture and storage.
- Plan about one hour: Most people with a moderate interest in science can cover the main displays in roughly 60 minutes.
- Pair it with nearby stops: Free parking and its South Iceland location make it a practical stop on a driving circuit, especially if you are already near the MegaZipline.
What the Hellisheiði exhibition actually is

The Geothermal Energy Exhibition is attached to the Hellisheiði ON Power plant, one of the world’s largest single-site geothermal power plants. Its purpose is to explain the process, not to provide access to the plant floor.
That distinction matters. The working facility is restricted for safety and security reasons. Even exhibition staff cannot simply wander through the operating areas. From the exhibition, you can look into both turbine halls from the third floor. Outdoor observation decks also provide views of the pipes, separation tanks, steam regulator, cooling towers, and scrubbing tower.
I would think of this as a science museum with a real power plant outside the windows. That makes it different from a conventional industrial tour, but it also gives the exhibits a useful connection to the machinery you can see around you.
The setting adds to the experience. The building sits in Icelandic countryside, with views of the surrounding terrain and plant equipment. You are not just looking at diagrams in a city museum. The technology is operating nearby, and the visible pipes and tanks help connect the explanations to the real world.
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Entering the plant through displays, not corridors

The experience is self-guided. You receive your admission and move through the exhibition at your own pace. Staff are available at the front desk to answer questions, but there is no standard guide leading a group from room to room.
This arrangement suits independent visitors. You can pause at a display, skip a section that feels too technical, or spend extra time on the parts that interest you. Families can move at different speeds, although you should bring a phone, tablet, or another internet-connected device if you want to use the audio guide.
The audio material is important. The exhibition includes plenty of information, and the display panels alone may not explain every stage of the process. You can download the audio guide using the code at the front desk or use the ON Geothermal Exhibit app. It is included in the entry price, so there is no reason to rely only on the wall text.
One practical warning: the audio guide is downloaded to your own device. You are not simply handed a traditional headset. If you arrive without a suitable phone, tablet, or internet connection, you may have to depend on the visual displays and whatever help staff can provide.
The exhibition is offered in English, making it easy to follow for English-speaking visitors. Staff are also on hand for questions, though the overall format remains independent rather than guided.
The cold water, hot water, and steam display
The strongest part of the exhibition is its effort to make a complicated process physical and understandable. A valve-based interactive display lets you see how cold water, hot water, and steam relate to one another.
That may sound basic, but it helps. Geothermal energy can be hard to picture when it is explained only through underground wells and power-generation terms. Turning valves and following the movement of water and steam gives you a clear mental picture of what is happening.
The basic idea is that heat from below the ground is brought into the power system. Steam drives turbines, producing electricity, while hot water serves Iceland’s heating needs. The exhibition uses its interactive elements to show how these forms of energy connect.
I especially recommend spending time here if you are visiting with children. The display gives young visitors something to operate and watch, rather than asking them to absorb a long technical explanation. It is educational without requiring a science background.
You should still set your expectations properly. This is not a large amusement attraction with constant demonstrations. It is a compact exhibition, and the interactive sections are part of a wider set of information panels, films, and viewing areas.
Multimedia films and the carbon sequestration display

The exhibition uses multimedia displays to explain geothermal energy in plain terms. Videos and visual presentations help break up the reading, while the building’s modern architecture gives the space a polished feel.
A carbon sequestration display adds a more current environmental angle. It explains work connected with capturing carbon and storing it in a way that addresses emissions. For anyone interested in climate technology, this section gives the visit more range than a simple explanation of electricity production.
The subject is especially relevant in Iceland, where geothermal power is a major part of the country’s energy system. The exhibition helps you understand both the benefits and the technical work behind that system. You leave with a clearer idea of why geothermal power matters, rather than simply seeing it presented as a vague form of green energy.
One multimedia art film has also drawn praise for its visual quality. The exhibition is not only a collection of industrial diagrams. It uses video, architecture, and clean design to make the visit feel more like a modern science center.
If you have little interest in geology, engineering, or environmental technology, you may find the exhibition small and quiet. That is not necessarily a fault. It means you can take your time without being pushed along, but it also means the attraction depends heavily on your curiosity.
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Looking into the turbine halls and onto the outdoor decks

The views of the plant are the closest you get to the working operation. From the third floor, you can look into the high- and low-pressure turbine halls. These views provide a sense of scale and show where the energy conversion takes place.
The outdoor decks offer another perspective. From there, you can see the pipe systems, separation tanks, steam regulator, cooling towers, and scrubbing tower. These pieces can look mysterious at first, but they become easier to identify after you have worked through the indoor displays.
This is also where some visitors may feel the experience falls short. You cannot enter the turbine halls or walk around the plant floor. If you have previously toured a hydroelectric facility from inside, you may expect a similar industrial walk-through and find this more limited.
I would treat the viewing platforms as an important part of the exhibition, not a substitute for plant access. You get a real look at the facility, but from designated observation points. The restrictions are not a surprise once you understand that this is an active power plant rather than a retired museum site.
Weather can affect how pleasant the outdoor viewing is. The experience requires good weather, and poor conditions can lead to a different date or a full refund. Even in fair weather, dress for Iceland’s countryside if you plan to spend time on the decks.
How much time to allow at Hellisheiði

The stated duration is about one to two hours. I would allow one hour for the main exhibition and closer to two hours if you plan to use the complete audio guide, watch the films, study the displays, and spend time outside.
A fast visit can cover the basic story in less time. That makes the exhibition useful for a road trip, since you do not have to commit half a day. A slower visit works better for families, science fans, and anyone who wants to understand the energy process rather than simply take a quick look.
The attraction is quiet rather than crowded in feel. That can be a benefit if you like reading and thinking without a noisy group around you. It also means you should not expect a dramatic, constantly moving tour. The value comes from the information and the chance to see the plant in operation from safe viewing areas.
Because the visit is self-paced, you can match it to your schedule. If you are driving through South Iceland and need a short educational stop, 45 to 60 minutes may be enough. If you are already interested in geology, renewable energy, or carbon capture, plan longer.
Fitting the exhibition into a South Iceland drive

Free parking makes this an easy stop by car. The exhibition is particularly practical as part of a South Iceland round trip, when you are already moving between countryside sights and outdoor activities.
It is also close to the MegaZipline, so the two activities can be combined if your schedule and interests line up. The exhibition offers a quieter, more thoughtful contrast to an active attraction. Families may appreciate having both options nearby.
I would not make a long detour solely for the exhibition unless geothermal energy is a strong interest. Its setting and subject make sense as part of a wider driving day. If you are passing close by, the free parking and one-hour visit make it a sensible addition.
The building also gives you a useful change of pace. Iceland sightseeing can involve long stretches of scenery, weather, and outdoor activity. A warm indoor exhibition provides context for the country’s energy system and gives you time to focus on something other than waterfalls and volcanic ground.
Is the $21.69 admission good value?

At $21.69 per person, this is not a throwaway roadside stop, but the value is fair if you use the audio guide and take time with the interactive displays. The admission includes the self-guided exhibition, multimedia presentations, plant viewing areas, and access to staff for questions.
The price is harder to justify if you only want to glance at the machinery. The plant cannot be entered, and the exhibition is smaller than some visitors expect. You are paying for an educational experience, not for a behind-the-scenes industrial tour.
For families, the value depends on the children’s interest in science. The hands-on water and steam display can make the subject approachable, while the audio guide and films add detail for adults. For a solo visitor or couple interested in energy and geology, the price is easier to defend because you can spend more time with the material.
Free parking helps keep the total cost down. There is also no separate charge for the audio guide, which is worth using. I would not book this as a major headline attraction, but I would consider it a good supporting stop on a South Iceland day.
The experience is booked, on average, about 34 days ahead. That suggests some advance planning is sensible, especially if you want it to fit with a tightly arranged road trip. You receive confirmation at booking, and mobile tickets are supported.
Who will enjoy this most?
I would recommend the exhibition to:
- Families looking for an educational stop with interactive elements
- Adults interested in geothermal power, geology, or climate technology
- Visitors planning a South Iceland road trip who want a practical indoor stop
- Anyone curious about how hot water and steam become useful energy
- People who prefer to explore independently instead of joining a fixed group
I would be more cautious if your main goal is to walk inside a power station. The restrictions are firm. You see into the turbine halls and view the outer equipment, but you do not enter the operating plant.
The exhibition also suits visitors who like short stops with substance. You can get a useful introduction in about an hour, then continue your drive. If you want a full-day museum experience with many large galleries, this will probably feel limited.
Booking, cancellation, and practical details
The ticket costs $21.69 per person and is available as a mobile ticket. The visit is offered in English, and confirmation arrives when you book.
Service animals are allowed, and most people can participate. The experience depends on suitable weather. If poor weather causes cancellation, you are offered another date or a full refund.
For your own flexibility, cancel at least 24 hours before the scheduled start time for a full refund. Cancellations or changes made within 24 hours are not refunded or accepted. The deadline follows local Icelandic time.
Bring a device that can connect to the internet if you want the audio guide. Do not assume that bringing headphones alone is enough. The key item is a phone, tablet, or similar device for downloading the guide.
Should you book the Geothermal Energy Exhibition?
Book it if you want a clear introduction to Icelandic geothermal power, enjoy interactive science displays, or need a worthwhile stop near Hellisheiði. The audio guide, turbine-hall views, carbon sequestration section, and valve display give the visit more depth than a quick look at industrial equipment.
Skip it if you expect to walk through the power plant itself. This is an exhibition connected to an active facility, not a guided plant tour. For $21.69, the best value comes when you allow about an hour, use the audio guide, and take time to look at the outdoor equipment.
My practical advice is to add it to a South Iceland driving day rather than build your whole itinerary around it. With free parking, flexible timing, and a useful explanation of one of Iceland’s defining energy sources, it earns its place as a smart educational stop.
FAQ
Where is the Geothermal Energy Exhibition located?
It is located at the Hellisheiði ON Power plant in South Iceland.
How long does the visit take?
The visit takes approximately one to two hours, depending on how much time you spend with the displays, audio guide, films, and viewing areas.
Can I enter the working power plant?
No. For safety and security reasons, visitors cannot enter the actual plant. You can look into the high- and low-pressure turbine halls from the third floor and see plant equipment from the outdoor decks.
Is an audio guide included?
Yes. The self-guided audio tour is included in the entry fee. You can download it using the code at the front desk or use the ON Geothermal Exhibit app.
Is parking available?
Yes. Free parking is available at the exhibition.
What happens if the experience is canceled because of weather?
If poor weather causes the experience to be canceled, you are offered a different date or a full refund. You can also cancel for a full refund if you do so at least 24 hours before the scheduled start time.
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