ABSTRACT
Humans have exploited the Earth's natural heat for thousands of years up until modern times. In Iceland, it provides 86 per cent of the country's space heating needs, which is important since heating is required almost all year and saves about $100 million in imported oil. Geothermal energy is considered a renewable and 'green' energy resource; however, there are several environmental impacts that must be considered and are usually mitigated. The noise from a power plant is not considered an issue of concern, as it is extremely low, unless you are next to or inside the plant. Any site considered for a geothermal power plant, must review and consider the impact on wildlife and vegetation, and if significant, provide a mitigation plan. If the replacement energy for direct use is provided by burning the fuel directly, then about half this amount would be saved in heating systems.
