Piedra Buena Thermal Power Plant (‘CPB’)

CPB, located in the port of Ingeniero White, close to the City of Bahía Blanca, Province of Buenos Aires, consists of 2 steam turbines with a 310 MW capacity each, totaling 620 MW, which represents 1.5% of Argentina’s installed capacity. The boilers can be indistinctly fed with fuel oil or natural gas supplied 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 60,000 m3 of fuel oil. From 1997 to 2020, its average annual generation was 1,987 GWh, with a generation record high of 3,434 GWh reached in 2011 and a record low of 189 GWh registered in 2002.


The following chart shows certain relevant statistical data on CPB:

2019 2020
Net Generation (GWh) 1,106 576
Purchases of Energy (GWh) 1
Total Energy Sales (GWh) 1,107 575
Average Price (US$/MWh) 62 43
Average Gross Profit (US$/MWh) 23 12

Note: Gross Margin before depreciation and amortization, values expressed in nominal terms. AR$/US$ exchange rate: 2019 – 48.23; 2020 – 70.59.


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