A modern makeover

In partnership with Genesis Energy, ANDRITZ embarks on a full-scale modernization of the historic Kaitawa Power Station — boosting renewable output and future-proofing for net zero 2050. 

In late 2024, ANDRITZ signed a contract for the comprehensive modernization of the 36 MW Kaitawa Power Station, the uppermost plant in the Waikaremoana Hydro Scheme commissioned in 1948. The contract was awarded to ANDRITZ by Genesis Energy, one of New Zealand's largest energy generators and retailers (“gentailers”), supplying electricity, natural gas, and LPG to more than 496,000 customers across New Zealand. 

After decades of operation, Kaitawa requires a major upgrade to ensure continued efficiency and reliability. Following an Early Contractor Involvement (ECI) process, Genesis Energy and ANDRITZ collaboratively finalized a detailed refurbishment plan to enhance the station’s performance and extend its operational life.

The scope of the contract includes:

• Replacement of the station's generators 

• Installation of new turbine runners, guide vanes, and turbine covers 

• Modernization of pressure relief valves and hydraulic governors

ANDRITZ will undertake the design, manufacturing, delivery, installation, and commissioning of the new equipment.

"We are excited to collaborate with ANDRITZ on this significant project," said Jane Bydder, Genesis’ General Manager of Engineering and Projects. "The power station’s upgrade will increase its efficiency, helping meet increasing demand for reliable, renewable electricity as we support New Zealand toward its goal of net zero 2050.”

The modernization effort represents a significant investment in renewable infrastructure, reinforcing Genesis Energy’s commitment to innovation and environmental stewardship. The project is currently in design and manufacture, with completion expected by late 2027.

Author: Tony Mulholland