Geothermal energy: The little known resource

In Iceland and a few other countries, geothermal energy delivers a large part of the energy used for heating or cooling, through geothermal heat pumps. You may be surprised to hear that there are hundreds of thousands of buildings in the U.S. that are also hooked up to such systems….

Ethanol: Irrational Exuberance?

There’s a lot of enthusiasm right now around ethanol as a potential solution to our oil addiction. Not everyone shares that enthusiasm, though. Margot Gerritsen speaks with UC Berkeley Professor Tad Patzek for a different perspective. Patzek is certain that corn ethanol and/or cellulosic ethanol (produced by specialized biomass crops)…

Carbon sequestration: Can we bury just the harmful carbon dioxide?

In this first in a series of discussons on carbon sequestration, we meet Marc Hesse, an aspiring graduate student at Stanford, who studies the physical processes that govern the movement of carbon dioxide once injected into the ground. Will it stay down? Will carbon sequestration really help in reducing the harmful effects of increased CO2 concentrations in the atmosphere? Marc makes a start in the debate on this issue.

Stanford’s Green Dorm

A few facts: in the U.S., residential and commercial space accounts for 40 percent of our primary energy consumption and 38 percent of CO2 emissions are from operating buildings. Why, then, is so little attention paid to building energy efficient offices and residences? Prof. Gil Masters from Stanford University wants to change that. His dream to build a student dorm that is green and clean is being realized: the Green Dorm project at Stanford is under way.

Silicon Valley: the epicenter of solar power and clean technologies?

On June 1, Silicon Valley profiled itself as the future epicenter of solar power, energy efficiency and clean technologies at the Energy Summit 2007. Jacob and Desirae, two of my students at Stanford, attended to see with Silicon Valley’s leaders were up to. They report on the conference in this video, so in case you missed it, this is a chance to catch up and listen to what’s cooking and what’s not in the Bay Area.

View From the Top: Shell Oil President John Hofmeister

John Hofmeister, Shell Oil president, sees an important role for his company in supplying the world’s energy in the future. Petroleum (oil and gas) will remain, at least for the near to medium future, the most important energy resource. Shell is also investing, as are many other energy companies, in renewable energy (wind, solar, biofuels) as well as so-called clean coal. Hear John Hofmeister’s views on Shell’s future directions and current energy policies.

Alternative Energy Options

Mark Jacobson is a world expert in wind energy and air pollution. He sees wind and solar power — not biomass — as the most optimal energy sources. He says that the increased use of ethanol will not improve the quality of the air we breathe. Mark also strongly believes…

Choosing Renewables: Wind and Solar

Download MP4Alternatives can help create a sustainable energy future. The most promising long-term alternative energy sources are wind and solar: there is plenty of it, greenhouse gas emissions are low, and the required surface area is relatively small — especially when compared to biomass. In this talk, SmartEnergy’s Margot Gerritsen…

Changing the world’s energy systems

download mp4Global warming is happening, and one of the culprits is likely increased emission levels of carbon dioxide and other greenhouse gases as a result of our energy usage. Lynn Orr is director of the Global Climate and Energy Project and one of the world’s leading experts on global warming…

A closer look at wind energy

April 6th, 2007 in Controlling carbon emissions, The world’s energy systems, What should we do? and Renewable energy resource: wind. 0 CommentsWind energy is a very attractive [tag]energy[/tag] source with very low emissions and low space requirements (especially when compared to biomass crops). My colleague, [tag]Mark Jacobson[/tag], has done extensive research…