Solar farms and cheaper energy sources could be key to getting more small players in the game.
Latest data from MBIE shows total energy supply decreased last year, while renewable energy generation increased.
Coal consumption dropped to a new record low, and natural gas consumption fell to its lowest level since 2008.
Energy security expert David Keat told Mike Hosking solar farms are relatively cheap.
He says small companies can build a solar farm up north, do a deal with a farmer, and supply power to the grid.
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