In his keynote address at the Water New Zealand Conference and Expo 2026, Dr. John Small from the New Zealand competition authority highlights the critical need for ongoing investment in the country's water networks to cater to growing communities and aging infrastructure.

Dr. Small elaborates on the Commerce Commission's risk-based approach to economic regulation, which aims to promote transparency, accountability, and financial sustainability. This approach is designed to ensure that consumers receive reliable services and value for money both now and in the future.

He emphasizes that economic regulation can enhance the performance and accountability of water service providers. Information disclosure is identified as a foundational element of the regulatory regime, which helps in fostering efficient investment and continuous improvement.

Using examples from Watercare and Tiaki Wai, Dr. Small illustrates how the Commission applies its regulatory tools in a tailored manner, addressing the specific risks and challenges faced by different water service providers.