What does "alternative energy sources" refer to in the context of LEED?

In the context of LEED (Leadership in Energy and Environmental Design), "alternative energy sources" specifically refers to energy generation methods that reduce our reliance on traditional fossil fuels. This includes renewable energy sources such as solar, wind, geothermal, and hydroelectric power. The goal of using alternative energy is to decrease greenhouse gas emissions, enhance sustainability, and promote the use of cleaner technologies.

By focusing on energy generation that lessens dependence on fossil fuels, LEED encourages building projects to seek out these sustainable energy solutions. This approach aligns with LEED's overarching mission to promote environmentally responsible practices in the design and construction of buildings. Alternative energy sources are integral to achieving energy efficiency and sustainability in both new and existing buildings, which is a core principle of the LEED program.

Traditional fossil fuels, energy sources exclusive to specific types of buildings, and non-renewable energy sources do not contribute to the goals of LEED in the same way that the correct answer does, as they do not promote sustainability or reduced environmental impact.