Renewable energy presents clear and widely-touted environmental and security advantages over non-renewable sources. But renewables are not interchangeable. Beyond their base similarities, wind, solar, and geothermal energy each presents a unique scenario of power output, cost, implementation requirements, land use, visual impact, and other factors.
To emphasize renewable energy is an important first step. But we must look beyond that broad category at the specific technologies in question. The following comparison explores some of the differences between the leading renewable energy types, including geothermal in general, EGS in particular, wind, and solar power.