GenChange Free app for iPhone and iPad

Analyze the generation changes of the New Zealand electricity market: The app downloads publicly available case files from the website of the Electricity Authority (New Zealand) then extracts and analyzes the data to create an interactive presentation of the official pricing solution. Case files can also be loaded via iTunes.

The app shows how price is linked to generation changes, and highlights the data that explains the generation changes.

Once a number of days have been downloaded you can plot the trend of prices over the course of the month.

This is the free version of the app, which is identical to the paid version except that downloaded data is not retained when the app restarts... the data must be downloaded again if you want to view it again.