一些可更新能源可减少甚至消除我们对化石能和核能的依赖 ,其中很多虽然已为人类使用数百年 ,但因为化石能的普遍使用 ,一直都为起人类的注意。人类已发明了新技术来利用这些可更新能源。其利用有赖于一定的技术是既定的事实 ,目前有成功建立这样的能源工业还是十分昂贵的。如果人类生产经济和市场允许的话 ,这些新技术经进一步改进和简化后 ,就可以降低成本 ,并且应用起来也很可靠。相对于开发应用核能 ,水能和化石能数以百万计的投资耗费来讲 ,用于可更新资源的资金可谓微乎其微。虽然传统能源和替代能源各具优点 ,但保护能源往往还是解决能源短缺最便宜 ,最容易的途径。 Some renewable energy sources reduce or even eliminate our dependence on fossil fuels and nuclear energy. Many of these have been used by humans for centuries, but they have always been of human interest because of the widespread use of fossil fuels. Humans have invented new technologies to harness these renewable energies. Its use depends on the fact that certain technologies are established and that the successful establishment of such an energy industry is still very expensive at this time. If the human production economy and market allow, these new technologies can be further reduced and simplified, and can be applied reliably. Compared to the development and application of nuclear energy, water and fossil millions of investment costs, the funds used to renewable resources can be described as minimal. While traditional and alternative energy sources each have their own advantages, energy conservation often solves the cheapest and easiest route to energy shortages.