Planning for the future

Joint development programme

The Joint Development Programme (JDP) spans a period of five years and involves a range of projects related to service maintenance and service enhancemen. The programme is updated at least annually.

Security of Supply Annual Assessment

Our annual Security of Supply Assessment provides important information about the power system's ability to meet New Zealand's electricity needs over the decade ahead.


We perform a central role in delivering electricity safely and reliably while helping to drive the transformation of the power system towards a more sustainable and decarbonised future.

System Operator projects

Find out about the major projects that the System Operator is currently working on to ensure the power system meets New Zealand's electricity needs now and in the future.

System Security Forecast

The System Security Forecast (SSF) assesses our ability to meet performance obligations and provides information so participants can understand constraints on the operation of the power system.