Geysers and hot pools

The Museum

Founded by Larderello Spa at the end of the 1950s it is housed in Palazzo de Larderel, recently restored and furnished with the most modern techniques of museum-graphics.
A journey that starts from the use of this resource in the Etruscan and medieval period, taking us up to the industrial development and to the contemporary challenge of sustainable energy.
In 1913 the first ever geothermal plant was built. Today the plants are the pulsing heart of the geothermal system and together with those on Amiata produce about the 27% of the total electrical needs of Tuscany.

The Geothermal Energy Museum ofis open all the year round (see timetable), open to groups and individuals, it is particularly suitable for school visits which can include several didactic activities on geothermal power and its natural phenomena. The visit includes, beside the museum rooms, the plastic-model room (with slides that show the origin of geothermal energy, the research, the drilling activity and the electrical plants), the covered lagone and the thermal spring. For groups, booking is compulsory, a visit to a geyser and a geothermal-electrical plant can be arranged. The visit to the museum also includes a documentary on the origins of geothermic energy, technical research, drilling and the power stations plus a visit to a “covered lake” or dome for the collection of steam and a hot spring . Guided tours to a steam jet and a geothermal power station are organized on request (booking only).

Tutorial Well

Drilled in 1956, 740 metres deep and 9”5/8 wide, it produces about 10 tons of fluid per hour at a temperature of 180°C. Composition of the fluid: 96% steam, and 4% incondensable gases. The tutorial opening of the well is included in the guided visit of the Museum.

Geothermal Phenomena

Geothermic activity dates back to antiquity. A 3rd century Roman military map Tabula Itineraria Peutingeriana identifies the Aquas Volaternas and the Aque Populanie and a circular lake which probably represents the area of numerous hot boric water lakes.

The Aquas Volaternas have been identified as the baths of Bagno a Morba near Larderello which were particularly appreciated during the Middle Ages and Renaissance for the curative properties of the water. Any trace of the Aquas Populanie were completely lost until an archaeological dig in the area of Sasso Pisano uncovered Etruscan and Roman baths, named Bagno del Re, which undoubtedly places the Aquas Populanie.
Industrial utilization of the hot water springs in Larderello had already begun in the 18th century when boric acid was discovered and the steam jets were utilized for the production of electricity after the first experiment in 1904.

Geothermic Museum of Larderello


Piazza Leopolda, Località Larderello
56045, Pomarance (PI)  
Tel: +39 0588 67724
Mail Volterratur:  
Tel: +39 0588 86099 (


From 16/03 to 31/10:
open daily from 9:30 a.m. until 6:30 p.m.

From 01/11 to 15/03:
open daily (except Mondays)
from 10 a.m. until 5 p.m.

Closing times  
Monday. Also closed on the following dates:
1st and 6th January, 25th, 26th, 31st December and the last two weeks of January.

Tel: +39 0588 67724
(Tuesday to Sunday, from 10am at 1pm)

Mail Volterratur:  
Tel: +39 0588 86099 (


Admission free
Reservations required for group

Museum Guide

Geothermal Museum Guide

Download HERE the Museum Guide

Introduction to the Museums of the Cecina Valley

Download HERE the Cecina Valley Museums introduction

Geothermal Power

A territory and a natural source of energy

Discover the wealth underfoot in Etruria

Walking trails

Satellite Coordinates Lat. 43.29897 – Long. 10.871122
Official Website Geothermic Museum – Larderello, Pomarance
Consorzio Turistico Volterra Valdicecina Valdera S.c.r.l.
Via Franceschini, 34 - 56048 Volterra (PI) - PIVA 01308340502
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