Middlemore Hospital – Substation
As part of the Middlemore Hospital Core Infrastructure Upgrade Project, McMahon was engaged to conduct site investigations and meet with key Te Whatu Ora stakeholders to determine the principal requirements for a new substation at the Middlemore Hospital site. The new substation is intended to replace an existing substation that is marked for demolition due […]
Manukau Super Clinic – Incomer Upgrade
Electrical demand at the Manukau Super Clinic will progressively increase over the next 10 to 15 years based on the MHP masterplan. A critical aspect of the masterplan is to ensure reliable power supply with sufficient capacity for the MHP projected demand. McMahon was engaged by Te Whatu Ora – Counties Manukau to: Conduct a […]
Fonterra Whareroa – Project Hoiho – EC6
Fonterra Whareroa have constructed a new plant room Energy Centre 6 under project Hoiho. The project was based on reducing the risk due to reticulated ammonia at Whareroa site. The EC6 plant comprises multiple ammonia water chillers and heat-pumps. All ammonia is contained within the EC6 plant and chilled water is reticulated throughout the […]
Waipa Networks Generator Support
Waipa Networks Limited owns and operates the electricity distribution network in an 1,865 square kilometre area south of Hamilton, in the Waikato region in New Zealand. One of Waipa’s main load centres is the town of Cambridge, which is supplied from Transpower’s Cambridge Substation (site ID: CBG). Due to continued network growth and customer […]
NZDF HV Maintenance
The New Zealand Defence Force (NZDF) is one of New Zealand’s largest organisations. The military side of the NZDF is branched into The Royal New Zealand Navy, The Royal New Zealand Air Force and The New Zealand Army with various bases and camps across New Zealand. In 2019, McMahon was engaged by the NZDF […]
Tekapo A Power Station – Station Services Swbd
Tekapo A hydro power station is operated by Genesis Energy. The station was commissioned in 1951 and generates 25.2MW through a single turbine. McMahon Involvement McMahon have been engaged to replace the station services switchboards at Tekapo A power station. The switchboard provide supplies for the generator auxiliaries and general station services. The project includes […]
Weno Power Station Upgrade – Chuuk FSM
Weno is the largest Island in the Chuuk Atoll within the Federated States of Micronesia. The atoll’s location in the Pacific Ocean provided a strategic naval base for the Japanese fleet during WW2 until it was destroyed by the US Navy. As a result the Chuuk lagoon is considered one of the premier wreck diving […]
Lower Huia PS Electrical Upgrade
Lower Huia Pump Station with four pumps operating, is capable of supplying 60 million litres per day (MLD) to Huia Water Treatment Plant (WTP). Huia WTP can provide up to 126 MLD or 24% of the average Auckland daily demand and is considered a critical water supply. Watercare identified risk in the power supply to […]
Mangere Digester Electrical Upgrade
Stage 1 electrical upgrade of the digester area at the Mangere wastewater treatment plant with the installation of supplies and switchgear to enable testing, commissioning and operation of a new eighth digester. The project included the upgrade of the control system for the valves for digesters one to seven. McMahon Involvement Hardware and protection design (LV, MV) Planning […]
Huntly Power Station Coal Handling
Huntly Power Station Coal Handling McMahon Involvement McMahon were engaged to design the replacement coal handling and bunker switchboards at Huntly Power Station. This included planning for temporary supplies to maintain coal transport and station generation while the switchboards were replaced. Design Controls interface 3.3kV switchgear modifications Protection Equipment and installation specifications Installation supervision Commissioning assistance