The Good and the Bad of Blowin in the Wind

Because winds are created by the uneven heating of the earth's atmosphere by the sun, irregularities of the Earth ' s surface, and the rotation of the Earth, there will always be wind, which means there will always be a source of free and inexhaustible energy. This free fuel is similar to the free fuel we get with solar and really all we are doing with both wind power and solar power is taking the modeling clay nature gives us and sculpting it into usable forms of clean energy. The main...

The Change Wave Thesis

Our proprietary research arm, the ChangeWave Alliance, recently declared 2008 the Yfear of Solar based on a Q1 survey of tech-savvy energy industry professionals. What we found was solar is indeed the wave of the future. We also found that solar is certainly living up to the predictions that it will be the first really big mover in the alternative energy sector. The report pointed to solar as the alternative energy industry with the most momentum for 2008, and into the next several years. The...

What Are Green Plastics

Like all forms of plastics, green plastics are composed of a polymers, combined with plasticizers and other assorted additives. But what makes green plastics different from traditional plastics is that they are (1) made of renewable ingredients, (2) biodegradable, and (3) processed in an environmentally friendly way. The importance of this third consideration is probably the hardest to quantify, but for our purposes we can say that green plastics largely consist of a combination of these three...

Master List of Green Companies

Hroughout this book I've mentioned many individual companies, but the list of companies within each sector is by no means exhaustive. To help round out the list of public and selected private companies in each green sector, I've made a more comprehensive, if not complete, master list. The stock exchange symbol for each is in parentheses. Ybu can enter these symbols in the get quotes box of such online financial websites as Yahoo Finance (finance.yahoo. com) and Google Finance A123 Systems...

Fuel Cell Types and Applications

All fuel cells contain either solid or liquid electrolytes that are sandwiched between two electrodes. Different types of fuel cells can be characterized by their particular electrolyte. The main types of fuel cells are polymer electrolyte membrane or proton exchange membrane (PEM) direct methanol fuel cells (DMFCs) solid oxide fuel cells (SOFCs) molten carbonate fuel cells (MCFCs) and alkaline fuel cells (AFCs). By far the most common type of fuel cell is the PEM. This fuel cell uses pure...

California Dreaming Utilities Take a Shine to Solar

Southern California Edison (NYSE EIX), one of California's Big 3 utilities, plans to install 50 MW of solar energy per year for five years on commercial rooftops for a 250-MW total commitment. This represents enough electricity to generate power for 162,000 homes. While California has always paved the way for solar in the United States, this commitment is larger and more concrete than previous projects. In fact, the 250 MW is more than the United States' entire production of solar cells in...

Figure World Electric Power Generation by Region

Sources Figure 61 from EIA, International Energy Outlook 2007 (Washington, D.C. U.S. Department of Energy, May 2007), p. 61. power generation worldwide in the coming years. According to the Energy Information Administration (EIA), world electric power generation is set to soar by 2030 (see Figure 4.1). Even if only a small sliver of that total projected worldwide demand is met by solar power, we are looking at substantial growth in the demand for solar power worldwide. And, if the growth rate...