The wonders of geothermal energy
Geothermal Exhibition
Welcome to the home of ON Power!
Visit the Hellisheiði Geothermal Power Plant to learn how one of the world’s largest geothermal plants produces green, sustainable energy to power the country.
The Geothermal Exhibition is open every day:
1 April - 31 October from 9:00-17:00
1 November - 31 March from 9:00-16:00
Closed on January 1st, April 5th (Easter Sunday), April 6th (Easter Monday), and December 25th
Contact Us
Welcome to the Home of Renewable Energy
Visit the Geothermal Exhibition and learn about sustainable energy, the operation of the power plant, and other exciting and innovative projects happening in the area.
The visit will contextualize your time in Iceland, including the electricity you use, the showers you take, the pools you visit, and even the local produce you eat.
During your visit, you can also enjoy beautiful landscapes, grab a cup of coffee, and chat with our knowledgeable Science Communicators.
Book your self-guided visit here and get a 10% discount
Use the code 10GEO to activate the discount.
Please contact syning@or.is for group bookings and guided tours.
''Even without a guide, Tobba was fantastic and answered all of our questions and helped us to understand the ingenuity and resourcefulness that sets Iceland apart from much of Europe — and how it is that such an inhospitable environment can be harnessed to allow living conditions. Highly recommend if itinerary allows.'' - December 2025
Bring Your Group
Want a more personal and in-depth experience? You can book a guided tour - we have a variety of options to choose from.
Meet in a Unique Environment
Make your next event memorable by holding it in Europe's largest geothermal power plant.
Geothermal Culture
Geothermal resource utilization has a long history in Iceland and is deeply intertwined with the country's culture, to the extent that we often take these resources for granted when it comes to our daily lives, quality of life, cultural heritage, and history.
What is all this white smoke? Is this air pollution?
No! That is 99.63% pure steam (H2O). This is a natural occurrence in geothermal areas.
Is the exhibition accessible for individuals with mobility impairment?
All parts of the exhibition are wheelchair accessible, with the exception of the third-floor balconies. We have two elevators and a wheelchair-accessible restroom.
Our exhibition guide is also available in both text and audio.
(note – see https://www.museumfuernaturkunde.berlin/en/visitor-faqs)
Where are you located?
The Geothermal Exhibition is located in the Hellisheiði power plant by Mount Hengill, about 25 km east of Reykjavík and 30 km west of Selfoss. We are located just off Highway 1 at the Hellisheiði Geothermal Power Plant. We have plenty of free parking.
GPS N64° 2′ 14.233″ W21° 24′ 11.519″
We recommend using Google maps for directions.
How long is the tour?
The Self-Guided Audio Tour takes roughly 45-60 minutes. For guided group tours, including duration, please see the Groups/Guided Tours section (General Group Section).
Do you sell food and drinks?
We offer a variety of drinks and small snacks in our café, Kaffi Orka. This includes coffee, tea, cocoa, sodas, local geothermally-brewed beer, pastries, and candy
Can I go inside of the power plant?
No, it is not possible for visitors to go inside the plant due to safety and security regulations. You can, however, see into our turbine halls, look over the working area from the back decks, and get a close-up look at our heat exchange and turbines with our 3D models.
School Groups
Perfect for students of all ages to learn about renewable energy
Customize your visit to best fit your students' educational goals
On-site learning
Unique opportunity to see geothermal energy in action
Carbfix Tour
Experience carbon storage first-hand
Full guided tour of the exhibition
Opportunity to visit a Carbfix injection site
In-depth discussion of CCS technology and geothermal energy production
