CS Energy is an Australia-based electricity generating company fully owned by the Government of Queensland with its head office located in Fortitude Valley, Brisbane.

[5][needs update] CS Energy was awarded A$32 million in 2010 to help construct Australia's first large-scale solar thermal project at Kogan Creek Power Station.

In 2020, Stanwell and CS Energy were accused of driving up prices by creating an artificial lack of supply.

[8] CS Energy and Stanwell are defending a class action filed by a law firm and backed by litigation funders related to historical electricity prices.

CS Energy has publicly rejected the claims being made and is strongly defending the class action.