This briefing provides an update on the progress of the New Zealand Battery Project (NZ Battery Project), early and emerging findings from the work to date, and an overview of upcoming milestones and decisions in 2022.

This briefing provides an update on two workstreams relating to potential alternatives to a pumped hydro scheme at Lake Onslow: other hydro options, including other pumped hydro options, and other comparator technologies (i.e. non-hydro options).

Provides some preliminary thoughts on how a “contractual virtual disaggregation” approach developed for application to an Onslow-type pumped storage scheme might be generalised to apply to 3 specific developments being considered as possible components of a “portfolio alternative”.

This report addresses how any large scale dry year storage mechanism (NZ Battery) would interact with and affect New Zealand’s current electricity market.

Understanding the ‘cost of shortage’ is a key pillar in the investment case for an NZ Battery solution as it helps provide an indication of the economic and financial costs that are avoided should a viable NZ Battery solution be pursued.

This report informs the counterfactual scenario (absent a New Zealand battery investment).

This report was prepared for the purpose of supporting MBIE by answering a prescribed set of questions regarding how risk and uncertainty affect the willingness and ability for parties to invest in generation.