Why Is the Upgrade Needed? How Will the Project Affect Me? Is There a Way
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- Ota-kou Voltage Upgrade Project - - We’re improving the power supply to the Otakou area on the - - Otago Peninsula to provide more reliable electricity supplies to How will the project Is there a way to do How is electricity supplied to Otakou? homes, farms and businesses. affect me? this work without an Electricity is transported from generation sources (such as a wind farms and hydro power stations) across the national grid transmission system to the local distribution system then onto consumers. To supply power to the - To upgrade the network safely, we need to turn the outage? Ota-kou area, Aurora Energy takes high voltage electricity from the Transpower substation in Halfway Bush to During March 2015, we’ll be upgrading the voltage supply to power off while we carry out the work. We would the Port Chalmers substation, where it is converted from 33,000 volts (or 33kV) to a lower voltage of 11,000 Unfortunately, no. We have to turn off the power - - - like to advise electricity consumers that electricity volts (11kV). The power is then carried on pylons over the harbour, then along the peninsula to Ota-kou where Otakou from 6,600 volts to 11,000 volts, to enable power to be - - to do the work safely. By making these planned outages are planned in Otakou during March the voltage is lowered again to 6,600 volts (6.6kV) to local transformers that convert it further to 230 volts for improvements, we can improve the future reliability delivered more efficiently. 2015. You will also be individually notified by your use in the home. electricity retailer. of your power supply. - We thank Ota-kou electricity consumers for their patience as we The first outage is planned forup to four hours during the period Monday 16 March to Wednesday carry out this improvement work and apologise in advance for any 25 March. You will receive individual notification NOW from your electricity retailer advising the specific What I need to do? inconvenience and disruption that may be caused. date and time. We’ll replace the existing distribution - transformers with new ones that can operate at the We understand that power outages can cause The Ota-kou Voltage Upgrade is part of Aurora Energy’s overall higher voltage. inconvenience and disruption. We have consulted TRANSMISSION DISTRIBUTION with the local marae and major tourism businesses During this work, our contractor, Delta, will be network development programme. Over the next decade, to find dates that minimise the disruption as far as working on power poles at multiple sites on the possible. If you have any specific concerns related peninsula. There will be localised traffic disruption $236 million of capital investment is planned in Dunedin and to the planned outages, please discuss with the at some sites. Traffic management will be in place Project Manager. See More information for contact Central Otago to enhance reliability and cater for growth. to ensure the safety of you and our contractors. details. 33kV 33kV / 11kV 11kV 11kV / 6.6 kV 6.6kV 6.6kV / 230V The second outage is planned from 8:00am to 33kV supply Subtransmission Port Chalmers 11kV feeder Otakou 6.6 kV feeder Local received from to Port Chalmers substation across the autotransformer supply to transformers 6:00pm on Thursday 26 March. In the event People using medical equipment that relies on Transpower substation tranformer harbour Otakou to consumers that the work is unable to be done that day, the electricity should advise their electricity retailer and planned outage will occur from 8:00am to 6:00pm ensure they are prepared for power interruptions. If on Tuesday 31 March. We’ll be changing over the there is an immediate health threat, please contact voltage supply. your health provider or call 111. The upgrade will require power outages for all Always treat all electricity lines and equipment as AFTER THE UPGRADE electricity consumers in the areas highlighted live at all times as the power may be turned back on the map below. You will receive individual on at any time. notification from your electricity retailer advising the specific date and time. TRANSMISSION DISTRIBUTION Why is the upgrade needed? Will I notice By increasing the voltage supply from 6,600 volts (or 6.6kV) to 11,000 volts (or 11kV), we can deliver power anything different - - more efficiently and reliably to taO kou area. We’ll also be modernising the existing distribution transformers following this work? 33kV 33kV / 11kV 11kV 11 kV / 230V to operate at 11kV, the same voltage as the rest of the Dunedin network. This will reduce the complexity of 33kV supply Subtransmission Port Chalmers 11 kV feeder Local supplying electricity to the area and improve the reliability of supply. received from to Port Chalmers substation across harbour transformers You’ll notice very little difference. The only Transpower substation tranformer to consumers visible change is that the existing pole-mounted distribution transformers will be replaced with new ones in the same place. The voltage you receive at the wall sockets in your home or business will be unchanged. More information We welcome your feedback. For more information, please contact us on 0800 433 582 or visit our website www.auroraenergy.co.nz 6.6kV overhead line Delta Project Manager Jithin Jose can be contacted on 0800 433 582 or [email protected] Planned outage area Transformer sites.