The company now expects earnings before interest, tax, depreciation, amortisation and fair value adjustments to be about $500m for the year.
Regulation is now needed to curb "peak time" battery charging, which could cost all electricity consumers an extra $6.1 billion by 2050.
The Electricity Authority, in very diplomatic terms, puts some of the blame on the government for “considerable regulatory and economic uncertainty that may reduce appetite for making investments”.
The Electricity Authority says the best way to deal with market power in the electricity sector is to encourage new investment in generation.
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articles by Ian