文稿:傲雪
翻译:Tiffany
编辑:Tiffany
10月14日新西兰能源部消息，一个专业公司已获得关于电池项目可行性调查的合同。 能源和资源部长Megan Woods 宣布，一个由专业公司组成的财团已获得一项重大合同，以推进新西兰电池项目对安斯洛湖抽水蓄能计划的可行性调查。Megan Woods 说：”这份合同是一个重要的里程碑，因为它开始了对安斯洛湖有针对性的工程、环境规划和岩土工程可行性调查。该财团将由工程咨询公司新西兰莫特麦克唐纳公司牵头，与工程咨询公司GHD以及环境规划和设计顾问博法·米斯克尔合作。
调查的第一部分将研究设计和环境影响，并确定岩土工程方案。第二部分将改进设计，通过对关键岩土技术方面的实地调查，包括区域地质、岩石性质、断层线以及潜在大坝施工现场的岩石和土方填料。环境规划工作将研究如何作正确的选择，以及可能需要做哪些进一步的工作来评估环境影响。 实地调查可能包括钻探浅井和深井，以更好地了解底层地质、隧道的最佳路线以及潜在地下动力的最佳位置。这项工作，以及已经进行的环境和文化调查，将更好地了解安斯洛湖储存计划的可行性和成本。 我要感谢马纳时阿和当地社区，特别是翁斯洛湖周围的土地所有者他们都很耐心。因为我们期待进行调查，并承认具有挑战性和独特的定位离子。虽然该项目有可能使新西兰全境受益，但项目团队将继续与这些团体合作并支持这些团体”。
新西兰电池项目正在研究解决干旱年问题的办法，即水力集水区低，化石燃料被烧毁以发电以弥补短缺。目前正在研究一些备选方案，并将与奥塔哥中部的安斯洛湖的抽水蓄能方案方案方案进行比较。这项奥内斯洛湖可行性研究的合同价值约1150万纽币。 什么是抽水蓄能？抽水水技术涉及在两个不同高度的水库之间调水。水从一个水库流到另一个水库，通过隧道，通过一个发电站。当电力需求低或有剩余电力可用时，用电从下水库抽水以填充上水库。当储存在上游水库的水被释放时，它沿着隧道流下来，驱动涡轮机产生水力发电。上游水库的水有效地充当电池，因为它可以在高需求时期或干旱时期释放出来发电。
14 October 2021
Major contract awarded to power NZ Battery investigation
A consortium of specialist firms has been awarded a major contract to advance the New Zealand Battery Project’s feasibility investigation into a pumped hydro storage scheme at Lake Onslow, the Minister of Energy and Resources Megan Woods has announced.
“This contract represents a major milestone as it begins the targeted engineering, environmental planning and geotechnical feasibility investigation for Lake Onslow,” says Megan Woods.
The consortium, Te Rōpū Matatau, will be led by engineering consultancy Mott MacDonald New Zealand, with engineering consultancy firm GHD, and environmental planning and design consultancy Boffa Miskell.
“The first part of this investigation will look at the design and environmental effects as well as determining the geotechnical fieldwork programme.
“The second part will refine the design, informed by fieldwork investigations of key geotechnical aspects, including the regional geology, rock properties, fault lines and the availability of rock and earth fill at location for potential dam construction. The environmental planning work will look at consenting options and what further work may be needed to assess the environmental effects.
“The fieldwork investigations are likely to include drilling shallow and deep boreholes to better understand the underlying geology, the best route for a tunnel and the best location for a potential underground powerhouse.
“This work, along with the environmental and cultural investigations already underway, will give a better picture of the feasibility and costs of the Lake Onslow storage scheme.
“I want to thank mana whenua and the local community, particularly the landowners around Lake Onslow for their patience as we look to conduct investigations and acknowledge the challenging and unique situation they are in. While this project has the potential to benefit all of New Zealand, the project team will continue working with and supporting these groups,” Megan Woods said.
The NZ Battery Project is investigating solutions to the ‘dry year problem’ when hydro catchments are low and fossil fuels are burnt to generate electricity to cover the shortfall. A number of options are being investigated and will be compared to a pumped hydro storage scheme option at Central Otago’s Lake Onslow. The contract for this Lake Onslow feasibility study is worth approximately $11.5m.
What is pumped hydro storage?
Pumped hydro technology involves transferring water between two reservoirs at different heights. Water flows from one reservoir to the other through tunnels, passing through a power station. When electricity demand is low or when surplus power is available, electricity is used to pump water from the lower reservoir to fill the upper reservoir. When water stored in the upper reservoir is released, it flows down the tunnels to drive turbines that generate hydro-electricity. Water in the upper reservoir effectively acts as a ‘battery’, as it can be released to generate electricity when it’s needed during times of high demand or during dry years.
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