Location of the province of Pisa
Pipework for geothermal power generation in Valle del Diavolo (Devil's Valley), Larderello.

Larderello is a frazione of the comune of Pomarance, in Tuscany in central Italy. It is a volcanically active area, renowned for its geothermal productivity.


The region of Lardarello has experienced occasional phreatic volcanic eruptions, caused by explosive outbursts of steam trapped below the surface. The water is contained in metamorphic rocks where it is turned to steam which is then trapped beneath a dome of impermeable shales and clay. The steam escapes through faults in the dome and forces its way out in the hot springs. It possesses a dozen explosion craters 30–250 m in diameter. The largest is the Lago Vecchienna crater which last erupted around 1282, now filled by the Boracifero Lake.

Larderello now produces 10% of the world's entire supply of geothermal electricity, amounting to 4,800 GWh per year and powering about a million Italian households. Its geology makes it uniquely conducive to geothermal power production, with hot granite rocks lying unusually close to the surface, producing steam as hot as 202 °C (396 °F).

Other Languages
azərbaycanca: Larderello
Cebuano: Larderello
Deutsch: Larderello
français: Larderello
italiano: Larderello
Nederlands: Larderello
norsk nynorsk: Larderello
română: Larderello
русский: Лардерелло
Simple English: Larderello
slovenčina: Larderello
slovenščina: Larderello
српски / srpski: Лардерело
srpskohrvatski / српскохрватски: Larderello, Pisa