Blind Creek Solar Farm

Project overview

The Blind Creek Solar Farm is a 300 MW utility-scale renewable energy project, incorporating a 240 MW battery energy storage system to support grid stability and energy transition in New South Wales.

GGC was engaged to deliver the high voltage substation required to enable connection to the Transgrid 330kV network.

Technical Delivery

Works included delivery of a 330kV substation and associated infrastructure to support grid connection of both solar and BESS assets.

This includes installation of transformers, switchgear, protection and control systems, and integration into the transmission network in line with Transgrid requirements.

Key Challenges

• Connecting to the existing transmission backbone between Sydney and Canberra requires the new substation to meet strict Australian Energy Market Operator (AEMO) approval conditions.
• Technical Synchronisation: The substation must handle DC-coupled technology, which requires integrating solar generation directly with the battery to minimise conversion losses
• Substation placement was complicated by the proximity to Lake George and Butmaroo Creek, necessitating careful planning around riparian zones, biodiversity and Aboriginal archaeological sites, which constrained the available land for infrastructure.

Solution

GGC applied a structured EPC delivery model, integrating engineering, procurement and construction activities to ensure alignment across all interfaces.

A phased and coordinated approach was implemented to manage complexity, maintain programme certainty and ensure compliance with grid requirements.

Outcome

The project demonstrates GGC’s capability to deliver high voltage infrastructure for large-scale renewable energy developments.

The substation enables reliable grid connection, supporting renewable generation and storage while strengthening network stability.