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Despite a coming cool change expected to ease the strain on the power grid, political heat about the future of Australia’s National Electricity Market remains red-hot.

Meanwhile, prudential regulator APRA has vowed to take further action to enforce valuation and liquidity risk requirements after half of probed super trustees failed to meet guidelines.

And Myer’s billion-dollar purchase of the apparel brands business from Solomon Lew's Premier Investments has been declared "fair and reasonable", with Myer directors supporting the deal which will see the billionaire join the board and become its largest shareholder.