Hidroelectrica is a state-owned company, its shares being held by the Ministry of Economy, Commerce and Business Environment which has as main objective power generation and services by using hydropower resources in Romania

Romania

Romania is a country located at the crossroads of Central and Southeastern Europe, on the Lower Danube, within and outside the Carpathian arch, bordering on the Black Sea...

.

Hidroelectrica owns 272 power plants and pumping station

Pumping station

Pumping stations are facilities including pumps and equipment for pumping fluids from one place to another. They are used for a variety of infrastructure systems, such as the supply of water to canals, the drainage of low-lying land, and the removal of sewage to processing sites.A pumping station...

s with a total installed capacity of 6,335 MW and an annual average power production of 19.772 GW

GW

-Science and technology:* .gw, the Internet top-level domain of Guinea-Bissau* Gateway * GateWorld* The symbol for GigaWatt, a unit for measuring electric power, equal to 109 watts* Global warming...

meaning 22 - 33 % of the total national output of Romania.

The company also has planned investments of US$ 6.8 billion in increasing the installed capacity by 2,634 MW and production by 6.489 GW per year; the most important projects being:

• Tarniţa – Lăpuşteşti Hydropower Plant (1,000 MW capacity) which will be the largest hydropower plant on the inner rivers in Romania
  Romania
  Romania is a country located at the crossroads of Central and Southeastern Europe, on the Lower Danube, within and outside the Carpathian arch, bordering on the Black Sea...
  
  . The total investment for this site will be around US$ 1 billion.
• Tisa Hydropower Plant (30 MW capacity). Total investment US$ 200 million.
• Islaz Hydropower Plant (28.8 MW capacity). Total investment US$ 313 million.

The company's main actives are:

• 89 large dams
  Dam
  A dam is a barrier that impounds water or underground streams. Dams generally serve the primary purpose of retaining water, while other structures such as floodgates or levees are used to manage or prevent water flow into specific land regions. Hydropower and pumped-storage hydroelectricity are...
  
   (which are over 10 m high and store over 1 million m³) of which 8 dams are over 100 m high;
• 350 km of headrace and tailrace channel
  Channel (geography)
  In physical geography, a channel is the physical confine of a river, slough or ocean strait consisting of a bed and banks.A channel is also the natural or human-made deeper course through a reef, sand bar, bay, or any shallow body of water...
  
  s;
• 750 km of underground
  Subterranea (geography)
  Subterranea refers to underground structures, both natural and man-made . Some subterranea include:* Bunker* Casemate* Catacombs* Caves** Ice caves* Cave dwellings, Cave house* Cave temple* Cellar* Cenote* Dungeon...
  
   galleries;
• 650 km of contour dams (dykes);
• 143 secondary catchment
  Drainage basin
  A drainage basin is an extent or an area of land where surface water from rain and melting snow or ice converges to a single point, usually the exit of the basin, where the waters join another waterbody, such as a river, lake, reservoir, estuary, wetland, sea, or ocean...
  
  s;
• 129 buildings of hydroelectric plants;
• 205 hydropower plants of small power
  Electric power
  Electric power is the rate at which electric energy is transferred by an electric circuit. The SI unit of power is the watt.-Circuits:Electric power, like mechanical power, is represented by the letter P in electrical equations...
  
   and micro
  Micro
  Micro is a prefix in the metric system denoting a factor of 10-6 . Confirmed in 1960, the prefix comes from the Greek , meaning "small".The symbol for the prefix is the Greek letter μ...
  
  hydropower plants.