Electricity Authority Te Mana Hiko’s Post

We monitor electricity supply and demand and how they differ across New Zealand’s two main islands.   Early in April, heavy rainfall hit the South Island and boosted hydro storage. This meant South Island generation was offered at a lower price into the electricity markets, and more hydro was dispatched to the grid.   In this chart, you can see the electricity flow over the HVDC cables that connect the North and South Islands, and hydro storage in the South Island. When hydro storage increased in April, hydro generators responded by lowering their offer prices. More energy was dispatched from the South Island and so the HVDC flowed northward.   This meant cheaper hydroelectricity was dispatched to consumers and thermal power stations ran less and saved fuel for winter - helping maintain security of supply.   #electricityindustry #securityofsupply

  • Chart shows days where the HVDC cables exclusively flowed electricity northward in April.
Keith Scoles

CEng, FEI. Future Energy Leadership, Strategy and Delivery

5mo

Great to see this sort of information being published. It helps us all to better understand how well our electricity system is being managed to keep electricity prices as low as practicable. The challenge we have is providing for an electricity future that reduces energy poverty and at the same time ensuring consumers are better informed and have confidence that we are working in their interests. My view is this sort of information shouldn't be just contained within LinkedIn or hidden in electricity industry websites but provided in ways the consumer can access and understand.

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