We have published a decision paper on wind offer arrangements, which sets out our decision to amend Parts 1 and 13 of the of the Electricity Industry Participation Code 2010 to; enable wind farm owners to withdraw their generation in an efficient way when the spot market price is below their operating cost, prevent wind farm owners withdrawing large amounts of generation in ways that are not well co-ordinated.

These changes will together promote the efficiency and reliability limbs of the Authority’s statutory objective by; enabling the lowest-cost generators to be scheduled and dispatched and reducing the risk of under-frequency events which can lead to supply interruptions.

The amendment will not come into force until the system operator and NZX make enabling changes to the market systems.