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New Zealand mayor's ‘China‑inspired’ solar project highlights potential for cooperation_我的网站

A |     8月25日消息，近日，保时捷公布一项车载音响创新技术，将氮化镓（GaN）半导体引入柏林之声3D高端环绕音响系统，主要用于400W低音炮功放单元。    这是全球首个计划量产装车的氮化镓车载高端音响方案，预计2027年随新一代保时捷车型正式落地。

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    Solar rooftop photovoltaic power generation facilities are seen on a building in Qingdao, East China's Shandong Province, on June 23, 2026. Photo: VCG
Some Western politicians have been smearing Chinese green products and even advocating for a "decoupling," but reality tells a different story. Recently, a mayor in New Zealand is reportedly pushing for a solar upgrade at energy-hungry public facilities after witnessing advanced green infrastructure during his China tour.
Christchurch Mayor Phil Mauger wants to turn some of the city's biggest power-hungry facilities into their own electricity generators, with a giant solar project at the wastewater treatment plant the first step in an ambitious plan inspired by a trip to China, the New Zealand Herald reported.
The mayor has ordered a report into whether solar panels could be suspended above the treatment plant in Bromley, creating a vast power-generating canopy capable of helping run one of the city's largest energy users. If successful, Mauger sees potential for similar installations at major facilities, where vast roofs and car parks could be harnessed to generate solar power.
Mauger's push for solar infrastructure was inspired by his recent visit to China, during which an innovative solar installation above a wastewater treatment plant caught his attention and sparked ideas for Christchurch, according to the New Zealand Herald.
Back in June, Mauger toured the wastewater treatment plant in Wuhan, Central China's Hubei Province, according to Hubei Daily. His itinerary included the central control station, solar-powered equipment room and sewage-treatment pools.
"What impressed us most were the solar panels mounted on the top, which supply electricity for the whole system. We have learned a great deal about its simple operation procedures and will hold relevant discussions afterwards," Mauger was quoted as saying in a local media report.
Chen Hong, a researcher at the Australian Studies Center at East China Normal University, told the Global Times on Wednesday Christchurch's planned project demonstrates that China-New Zealand cooperation can extend beyond conventional trade into city-level governance.
"Collaborative initiatives in clean-energy deployment, sewage treatment and waste disposal can create an innovative cooperation framework integrating technical solutions, engineering capacity and on-the-ground operational expertise," Chen said.
He added that this real-world case lays bare the fundamental divide between geopolitical narratives advocating so-called decoupling from China and the practical realities of local governance.
"If a Chinese solution actually works, ideological labels shouldn't get in the way. This case shows that the whole 'decoupling' talk is mostly political rhetoric. At the end of the day, economies run on cost, efficiency, and results," Chen said.
Global Times 
。    该项目由保时捷联合斯图加特大学共同研发，2023年年中立项，2024年春季完成原型开发，已经申请多项相关专利。         据介绍，氮化镓常见于手机快充头，相比传统硅基芯片，功率转换损耗更低，工作过程发热量大幅下降，用在音响系统上会专门负责400W低音炮的电压转换，输出功率保持不变的前提下，功放散热压力显著降低。    最直观的变化体现在散热硬件上：功放散热器重量可以减少约20%，电容、电感等周边元器件也能够同步小型化，整套功放变得更加紧凑轻巧。

C |     此外，传统功放散热器大量使用铝材，而铝冶炼属于高耗能工艺，应用氮化镓后，散热器减重，直接减少铝材消耗，帮助降低零部件生产环节碳排放，实现减重与可持续的双重目标，对追求轻量化的跑车平台意义突出。         保时捷表示，这次升级核心是提升电源转换效率，并非单纯强化低音音量，更低的热损耗，也意味着车载电能浪费变少。    目前氮化镓仅率先应用在低音炮功放模块，保时捷也正在评估，未来把该半导体技术拓展至车内更多电源转换部件。    保时捷把快充领域成熟的第三代半导体移植到车载Hi-Fi上，也给汽车电子打开新思路，也就是在有限车身空间内实现更高功率、更少材料消耗。

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Published on:18:47:26