Power Plant Construction and QA/QC Section 1.7– Geothermal Energy Engineering Technology Division

2 Overview Introduction US Geothermal Plants Geothermal Resources Geothermal Production and Methods Geothermal Potential for Power Generation Environmental Aspects Section 1.7– Geothermal Energy

3 Introduction Section 1.7– Geothermal Energy DEFINITION - Geothermal energy is thermal energy generated and stored in the Earth. Geothermal energy production is the ability to utilize the Earth’s heat to produce work (or rotational energy) to turn a generator 7,000 °K=12,140 °F °F x 256 = °K

4 Introduction Section 1.7– Geothermal Energy

5 US Geothermal Plants Section 1.7– Geothermal Energy

6 US Geothermal Plants

7 Geothermal Resources - US Section 1.7– Geothermal Energy

8 Geothermal Production - Types

9 Section 1.7– Geothermal Energy Geothermal Production - Types

10 Section 1.7– Geothermal Energy Geothermal Production - Types Double Flash Power Plant

11 Section 1.7– Geothermal Energy Geothermal Production - Types

12 Section 1.7– Geothermal Energy Geothermal Potential for Power Generation

13 Section 1.7– Geothermal Energy Environmental Issues

14 Section 1.7– Geothermal Energy Location - Proper Research, Dry Hole Lifespan of the Project – Drilling, Plant Life, Stoppage Hazardous Gases – Hydrogen Sulfide, Sulfur Dioxide, Carbon Dioxide Dissolved Chemicals – Deposition, Cleaning, Waste, Treatment Geological Changes – Earthquake, Subsidence, Land Lifting Environmental Issues - Disadvantages

15 Questions? Section 1.7– Geothermal Energy