Video | Agriculture | Confidence | Economy | Energy | Employment | Finance | Media | Property | RBNZ | Science | SOEs | Tax | Technology | Telecoms | Tourism | Transport | Search

 

Declining hydro storage and demand in September

Declining hydro storage and demand in September

While the month of September saw an overall decline in hydro storage as a percentage of average a large reduction in demand due to warmer spring temperatures resulted in a slight reduction in monthly average prices when compared with August prices.

Monthly average prices at the Otahuhu, Benmore and Haywards reference nodes all decreased in September in comparison to August figures. Benmore prices decreased slightly from 2.69c/kWh in August to 2.67c/kWh in September and Otahuhu prices decreased from 3.31c/kWh to 3.28c/kWh respectively. The monthly average price at Hayward’s decreased significantly from 3.95c/kWh for August to 2.97c/kWh in September. As reported last month the average monthly price at Haywards for August was severely inflated by a price spike to approximately $12/kWh price that occurred on 21st August.

For the first half of September flows over the HVDC inter-island link were restricted to 700MW. This limitation was a continuation of the restriction that followed an unplanned outage on 23 June and continued throughout August. Price separation did occur in September due to the restricted HVDC capacity however it was not as extreme as in August. The highest price differential between Haywards and Benmore spot prices was 6.81c/kWh at 17:30 on 1st September.

Daily demand during September was at a markedly lower level than that recorded during August. Daily demand exceeded 120GWh only once during September. That compares to 14 days in August when this was exceeded. Average daily demand in September was 109.2GWh compared to 116.5GWh in August and 113.7GWh in September 2003.

Inflows in September were 97% of average and at month end storage was 97% of average for that time of the year. Storage levels decreased by 367GWh from 2,518 on 1st September (the highest level during September) to 2,151GWh on 30 September.

© Scoop Media

 
 
 
Business Headlines | Sci-Tech Headlines

 

Media Mega Merger: StuffMe Hearing Argues Over Moveable Feast

New Zealand's two largest news publishers are appealing against the Commerce Commission's rejection of the proposal to merge their operations. More>>

Elsewhere:


Approval: Northern Corridor Decision Released

The approval gives the green light to construction of the last link of Auckland’s Western Ring Route, providing an alternative route from South Auckland to the North Shore. More>>

ALSO:


Crown Accounts: $4.1 Billion Surplus

The New Zealand Government has achieved its third fiscal surplus in a row with the Crown accounts for the year ended 30 June 2017 showing an OBEGAL surplus of $4.1 billion, $2.2 billion stronger than last year, Finance Minister Steven Joyce says. More>>

ALSO:

Mycoplasma Bovis: One New Property Tests Positive

The newly identified property... was already under a Restricted Place notice under the Biosecurity Act. More>>

Accounting Scandal: Suspension Of Fuji Xerox From All-Of-Government Contract

General Manager of New Zealand Government Procurement John Ivil says, “FXNZ has been formally suspended from the Print Technology and Associated Services (PTAS) contract and terminated from the Office Supplies contract.” More>>