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| Marsden A Power Station | |
|---|---|
 | |
| Country | New Zealand |
| Location | Marsden Point, Northland |
| Coordinates | 35°52′32″S 174°28′05″E / 35.875474°S 174.468041°E / -35.875474; 174.468041 |
| Status | Decommissioned |
| Construction began | 1964 |
| Commission date | 1967 |
| Decommission date | 1996 |
| Owner(s) | Mighty River Power |
| Thermal power station | |
| Primary fuel | Fuel oil |
| Power generation | |
| Units operational | 2× |
| Nameplate capacity | 250 MW |
Marsden A was a 250 MW oil-fired power station near the Marsden Point Oil RefineryatMarsden Point, Ruakaka, Northland, New Zealand. It was built between 1964 and 1966 and commissioned in 1967.[1] It acted as an emergency reserve power station, serving the load centre of Auckland to the south. It was cooled through a long seawater pipe out into Bream Bay, which is now used to supply an aquaculture industry nearby.
Following the commissioning of the dual coal- and gas-fired Huntly power station in 1982, Marsden A became less used, and it was mothballed in the 1990s due to rising oil prices. One of the generators was subsequently run as a synchronous condenser to provide reactive power support to Transpower's national grid in Northland, but were decommissioned in 2007 when they were superseded by solid-state power support devices within Transpower's network.
The facility was previously owned and operated by Mighty River Power.
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