Piedra Buena Thermal Power Plant (‘CPB’)

CPB is located in the port of Ingeniero White, close to the City of Bahía Blanca, Province of Buenos Aires. The plant consists of 2 steam turbines of 310 MW each, totaling 620 MW, which represents 1.6% of Argentina’s installed capacity. The boilers can be indistinctly fed with natural gas or fuel oil.

The supply of natural gas is made through a proprietary 22-km gas pipeline operated and maintained by CPB and connecting with TGS (‘Transportadora de Gas del Sur’)’s main gas pipeline system. Furthermore, CPB has two tanks for the storage of fuel oil with a combined capacity of 60,000 m3. From 1997 to 2019, its average annual generation was 2,048 GWh, with a generation record high of 3,434 GWh in 2011, and a record low of 189 GWh in 2002.


The following chart shows certain relevant statistical data on CPB:

2018 2019
Net Generation (GWh) 753 1,106
Purchases of Energy (GWh)
Total Energy Sales (GWh) 753 1,106
Average Price (US$/MWh) 88 62
Average Gross Profit (US$/MWh) 46 23

Note: Gross Margin before depreciation and amortization, values expressed in nominal terms. AR$/US$ exchange rate: 2018 – 28.13; 2019 – 48.23.


Technical Data

Plant Unit Installed Capacity (MW) Efficiency Fuel Start-Up Type of Unit
CPB BBLATV29 310 620 35% Natural gas or fuel oil 1989 Turbine / Steam boiler
BBLATV30 310 1991