Pisces Preserver

河流为产生“绿色”电力提供了巨大的潜力，但是传统的涡轮机设计在环境上是不可接受的，除非在相对少数的场地类型中——主要是在已经存在堰或其他瀑布的地方。“双鱼座保护器”避免了对鱼类的伤害，同时也产生了相对较少的电力，但有数千个可能的装置。这一发展可能会使英国的“河流径流”装置从每年约20个增加到200个。

Rivers offer the promise of great potential for the generation of "green" electricity, but traditional turbine designs are not environmentally acceptable except in a relatively small number of site types - mainly where there already exists a weir or some other water fall. "Pisces Preserver" avoids harming fish while also producing comparatively small amounts of electricity, but in thousands of possible installations. This development could take UK "run-of-river" installations from around 20 to 200 per year.