An Enhanced Geothermal System (EGS) is a man-made reservoir, created where there is hot rock but insufficient or little natural permeability or fluid saturation. Unlike a naturally occurring geothermal system, where heat, fluid, and permeability are all present, EGS adds fluid to the subsurface under carefully controlled conditions to circulate among the hot, fractured rock. The heat is then transported to the surface to generate electricity.
Buildings and Grounds Management has put out more than 100 recycling bins throughout the Mānoa campus to improve the school’s sustainability.
Reykjanesvirkjun is a geothermal power plant in Iceland, with total power generated of around 100 MW. The energy is taken from 12 boreholes, m deep, at a temperature of °C. Seawater is used for cooling.
This diagram by "British Geological Survey" demonstrates a geothermal power plant and how it functions. This diagram is successful because it shows where raw geothermal energy comes from and how it can be harvested and converted into power.
In late 1982 we broke ground on a research project called the Herber Binary Cycle Geothermal Project in the Imperial Valley. Here Joe Heminger surveys the plant as geothermal steam rises in the background. Today SDG&E is trying new technologies. You can find out about them at www.sdge.com/occ #SDGE