They use Geographic Information System (GIS) technology to display current network infrastructure and indicate available or spare capacity to accommodate additional demand or generation.

They are primarily intended for developers, builders, and large-scale customers (e.g., EV charging infrastructure providers, solar project developers) who need to assess the feasibility of new projects and connections.

Network capacity refers to the maximum amount of load or generation the existing infrastructure (like a transformer or line) can safely handle at any given time without impacting reliability or requiring upgrades

The hosting capacity data is our best estimate as at the date of publication. We intend to review the maps every three months, with a full data regeneration once per year. The maps show approximate hosting capacity. The data must not be relied upon for detailed design work or investment decisions.

Maps are intended to be reviewed every three months, with a full data regeneration once per year. The maps show approximate hosting capacity. The hosting capacity data is our best estimate on the date of publication. Capacity is dynamic, so some available capacity may already be contracted to other users but not yet fully utilised.

Not necessarily. Even in areas that show capacity available, minor or major upgrades may be required.

The maps are a tool to help you identify the most viable locations. If you wish to proceed with a project, you must submit a formal application for connection to our network operator. They will then perform a detailed, site-specific assessment to determine the actual available capacity and any required infrastructure upgrades.

Connections are often still possible, but they will likely require significant and expensive network reinforcement or upgrades to overcome the constraints. This can increase project costs and timelines.

Generally, the developer or connecting customer is responsible for the costs of new network infrastructure specific to their property, while Northpower covers assets that benefit the wider network. Refer to Northpower’s Capital Contributions Policy for detailed information on charges.

Yes, we have capacity maps showing available capacity for electricity in ‘both directions’. There are two separate maps, one for load and one for generation.

The map only covers the Northpower network area (Whangārei and Kaipara regions). For areas north of the boundary, customers need to check with Top Energy, and for areas south, with Vector.