How many wholesale companies are there in New Zealand?
There are about 80 generation companies, 62 retailers and 6 gentailers (generator-retailers) in New Zealand's wholesale market. The remaining wholesale market participants comprise distribution and network companies and traders in secondary markets, such as financial hedges.
What is the wholesale market in New Zealand?
The wholesale market is where generators sell electricity and retailers buy electricity. Retailers then on‑sell that electricity to businesses and households across New Zealand. There are about 80 generation companies, 62 retailers and 6 gentailers (generator-retailers) in New Zealand's wholesale market.
How do wholesale prices change in New Zealand?
In New Zealand, wholesale market prices vary a lot depending on the balance between which power stations are available to generate, and how much electricity customers need at any one point in time. Customer demand can change a lot at different times of the day or year.
How does the wholesale electricity market work?
The price and volume of electricity we generate is determined by competitive bids and offers in the wholesale electricity market. The market is operated in real time by the System Operator (Transpower) and closely regulated and monitored by the Electricity Authority (EA). They ensure all market participants act fairly to competitors and customers.
How has the wholesale price of electricity changed over the past decade?
Over the past decade, the wholesale price of electricity has been extremely volatile, driven primarily by demand and supply shifts. Fluctuations in hydro-power reserves, due to their large proportion of power generation, have also affected prices over the period.
Are electricity distribution losses included in the wholesale market price?
(Electricity distribution losses* are not included in the wholesale market price). Spot prices are influenced by various factors, including supply and demand dynamics, weather conditions, generation capacity, and transmission constraints.
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