Sustainable energy is defined as technologies that reduce the environmental impact of energy generation. It is derived from non-traditional sources, as opposed to fossil fuels, which includes compressed natural gas, solar, hydroelectric, wind, etc. and includes industry functions that support its growth. Some examples of sustainable energy include: Power and Communication Line and Related Structures Construction, Ethyl Alcohol Manufacturing, Turbine and Turbine Generator Set Units Manufacturing, Semiconductors and related devices, and Other Measuring and Controlling Device Manufacturing.