Delio Lake is a
lake
A lake is often a naturally occurring, relatively large and fixed body of water on or near the Earth's surface. It is localized in a basin or interconnected basins surrounded by dry land. Lakes lie completely on land and are separate from ...
in the
Province of Varese
The province of Varese () is a Provinces of Italy, province in the Lombardy region of Italy. Its capital is the city of Varese (population of 80,857 inhabitants), but its largest city is Busto Arsizio. The headquarters of AgustaWestland, the compa ...
,
Lombardy
The Lombardy Region (; ) is an administrative regions of Italy, region of Italy that covers ; it is located in northern Italy and has a population of about 10 million people, constituting more than one-sixth of Italy's population. Lombardy is ...
,
Italy
Italy, officially the Italian Republic, is a country in Southern Europe, Southern and Western Europe, Western Europe. It consists of Italian Peninsula, a peninsula that extends into the Mediterranean Sea, with the Alps on its northern land b ...
. At an elevation of 930 m, its surface area is about . It is a natural lake, but its shape has been altered by its use for energy production. It serves as the upper reservoir for the
pumped-storage
Pumped-storage hydroelectricity (PSH), or pumped hydroelectric energy storage (PHES), is a type of hydroelectric energy storage used by electric power systems for load balancing.
A PSH system stores energy in the form of gravitational potent ...
Roncovalgrande Hydroelectric Plant.
In 2020 a hiker died after being caught in fast flowing water that escaped the banks of Lake Delio.
References
Lakes of Lombardy
{{Lombardy-geo-stub