New Zealand Small Area Population and Dwelling Projections

Orion Group New Zealand

Service Area

Forecasting & Infrastructure Modelling

Solutions Engaged

Consulting

Objective

Produce 20-year small area and LGA-level population and dwelling projections to inform systems planning for the region’s electricity retailer.

Method

To produce robust projections across numerous fast-growing small areas, the integration of three modelling components was required: a probabilistic population model, an economic model, and expert opinion.

Solution

Advanced Demographic Modelling deployed a probabilistic population model. It used inputs from a regional economic model built by Geografia that measured the historical correlations between migration and economic activity. Regional migration experts were also consulted to fine-tune migration assumptions.

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