可再生能源:首次浮动太阳能测试

Floating 太阳能发电 involves installing solar panels on floating structures on a body of water, 比如一个湖, 峡湾或海洋, 或者在水电站里.

The floating solar park on the Banja reservoir in 阿尔巴尼亚 will consist of four "rafts", 每个直径约70米, 总共覆盖了15个以上,000平方米的太阳能电池板. Each raft has a plastic ring and a thin membrane, much like a giant inflatable children's pool.

It is this membrane and the large area that makes this concept unique. 它是由挪威公司开发的 海洋的太阳. Although the membrane is only a few millimetres thick, it can easily withstand the weight of the solar panels and of personnel carrying out installation or maintenance tasks.

"The large rafts simplify the work involved in installing, 锚定和维护设备, 这将被证明是有成本效益的,康Hølland说, head of the project management unit in Statkraft's International Power business area.

不断增长的市场

到2017年底, 250 MW of floating 太阳能发电 was installed globally, and this is expected to grow to around 10 GW by 2030. This is a small amount compared to the total market for 太阳能发电, but every contribution is welcome in the renewable energy market.

Most of the existing floating solar plants are installed in Asia, 增长最快的地方在哪里, especially in countries such as 印度 and South Korea.

“对于十大最好的网赌平台, this technology will be most relevant in countries where we're already established with hydropower reservoirs and where there is a lot of sunshine,霍兰德说.

“此外, 如果电站位于水电站蓄水池内, 十大靠谱网赌将在阿尔巴尼亚进行测试, 它可以利用现有的基础设施. The plant will also reduce evaporation from the reservoir,汤姆·克里斯蒂安·拉森说, Statkraft在阿尔巴尼亚的国家经理.

This is the first time Statkraft is involved in floating solar energy, and while the goal is for the plant to be economically profitable, 主要是R&D项目.

“十大靠谱网赌感兴趣的是十大靠谱网赌能学到什么. How will the rafts and moorings handle wind and varying water levels? What happens to the aquatic environment under the plant? 它将如何影响水库的蒸发? 这种植物将如何影响鸟类的生活? 十大靠谱网赌想要这些问题的答案,Tron enggebrethsen说, senior vice president with responsibility for power plants in the International Power business area.

"There may be long-term effects or issues we are not presently aware of. So we will follow this project very carefully before we consider using the technology elsewhere,他说.

价格压力

It is no secret that there is tough competition on price in the renewable energy market, 浮动太阳能也不例外. 关键是找到能够降低成本的解决方案.

"What makes this solution particularly interesting is that it requires little material per kilowatt of electricity produced. This can lead to lower costs per installed MW and is also good for the environment. 每个单元基本上只由一层膜组成, 塑料浮环及锚固设备, 还有太阳能电池板. 该机组的装机容量为0.5 MWp(峰值瓦数), and in principle you can just multiply with as many units as you need,霍兰德说.

The membrane used in the reservoir of Statkraft's power plant in Banja, 阿尔巴尼亚是由一家挪威公司生产的, 但其他组件是“现成的”。. This means that in the future, such a plant can easily be produced with local labour and materials.

"The floating ring consists of a 12-metre-long plastic pipe which is welded together on site. This time we sourced it from China, but in the future they can be bought locally. The use of local labour is also an important factor in the profitability of this project,拉森说。.

"We will use local labour for project management, installation and service. If we had produced this in 挪威 and had Norwegian installers put it together, 它永远不会盈利. 这种模式也符合海洋太阳的愿景. They want this to be a package solution where the membrane is shipped in a container while the rest is obtained locally,他说.

四个大的中的第一个, round collections of solar panels was put into steady operation in Banja, 阿尔巴尼亚 in April 2022 with a nominal power of 500 kWp. With all four 太阳能发电 facilities on the Banja reservoir in operation, the 太阳能发电 plant will all be able to deliver up to 2 MWp when the sun shines at its best.