Our coal-fired power stations help underpin power system reliability and we will continue to invest in them to ensure they can operate safely, efficiently and reliably for as long as they are needed. We are also diversifying our portfolio to include renewable energy, firming and storage.

We understand our responsibility to operate in strict accordance with our emissions limits.  

Greenhouse emissions

CS Energy reports our greenhouse emissions, energy consumption, and energy production data to the Clean Energy Regulator as part of the National Greenhouse and Energy Reporting Scheme. 

CS Energy provides data for the facilities over which we have operational control – Kogan Creek, Callide B and Callide C power stations, and the Chinchilla and Greenbank batteries.

Our greenhouse gas emissions vary each year depending on factors such as the mix of generation fleet in service, volume of coal consumed and coal quality. In FY2025 there was a slight decrease in CS Energy's greenhouse emissions intensity as a result of increased electricity generation at Callide C Power Station, which is one of the more efficient coal-fired plants in CS Energy's portfolio.

Visit the Clean Energy Regulator website for full details of CS Energy's greenhouse emissions.

Other air emissions

CS Energy’s power stations also emit oxides of nitrogen (NOx) and sulphur dioxide (SOx), which are produced as a result of the coal combustion process.

Kogan Creek and Callide C power stations use modern fabric filter bag technology and continuous emissions monitoring systems.

Callide B power station, built in the late 1980s, uses electrostatic precipitator technology for controlling fly ash emissions, which is a commonly used technology around the world today. Callide B continuously monitors its fly ash emissions.

CS Energy conducts regular maintenance of our equipment for controlling emissions to keep it running efficiently.

We report our NOx, SOx and other emissions annually to the National Pollutant Inventory (NPI). Our NPI data is calculated from emissions monitoring equipment at our sites, stack testing results and other operational sources.