Mike Cannon-Brookes has sold a part stake in AGL Energy to free up funds to make other “exciting” investments in clean energy, but he says the power company remains his largest investment.

The sale of less than 1 per cent of the holding in AGL, the country’s biggest carbon emitter, “should not be seen as a broader divestment plan or change in our focus”, said Jeremy Kwong-Law, CEO of the billionaire’s private Grok Ventures, on Wednesday.