Powering a more reliable railway for New Zealand
Customer Story | 1 min read
As Auckland grows, the rail system needs a power supply that can support more frequent and more reliable train services. Hitachi Energy has strengthened KiwiRail’s network by improving the stability and resilience of the electricity supply for the metro system. The PCS6000 Static Frequency Converter installation reduces outages, improves rail performance and supports KiwiRail’s vision for a modern and sustainable transport network for New Zealand.
Challenge
Auckland’s rail network is expanding quickly, and the existing power system was reaching its limits. KiwiRail needed a more stable and reliable way to power more frequent train services without causing outages or putting extra pressure on the grid. They were looking for a solution that could increase capacity, improve power quality, while also support future growth of the metro network.
Solution
Hitachi Energy delivered PCS6000 Static Frequency Converters to provide a stronger, more stable power supply for Auckland’s rail network, improving power quality, supporting parallel feeding and enabling more efficient use of regenerated braking energy.
Load sharing that reduces peak demand
Energy efficiency and better use of braking energy
Improved power quality and greater grid stability
Parallel feeding that removes the need for neutral sections
Hitachi Energy's Static Frequency Converter PCS6000
Impact
With the PCS6000 Static Frequency Converters, KiwiRail now benefits from a more stable and compliant power supply that strengthens overall network performance. The converters improve power quality, balance the load on the grid, and ensure full grid code compliance — resulting in fewer interruptions and smoother train operations. By making better use of regenerated braking energy and reducing peak demand, the solution lowers OPEX, while the ability to connect at medium voltage helps minimize CAPEX and accelerate project approvals. Together, these improvements deliver meaningful system optimization, enhance grid stability, and support New Zealand’s ambition for a modern, efficient and sustainable public transport network.
Optimized CAPEX and OPEX cost
Overall system optimization
Ensuring grid compliance and grid stability
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