There are typically costs of adoption that are not included in simple cost-effectiveness energy calculations. It is by no means costless to learn how a technological improvement fits into a home or firm or to learn about reliable suppliers. Even after basic information about a technology has been disseminated, the purchase price of a new product is only a lower bound on its adoption cost. (more…)

Current forecasts call for solid growth in world energy use over the next 20 years, potentially increasing 60% above current energy use. With the forces in place to keep energy use patterns the same, a safe, conservative assumption would be that the commercial sector will contribute about 12% to final total energy consumption in the year 2020. (more…)

The gradual change in the energy consumption pattern of the United States from 1860 to 1990. In the mid-1800s, biomass, principally woody biomass, supplied over 90% of U.S. energy and fuel needs, after which energy biomass consumption began to decrease as fossil fuels became the preferred energy resources. For many years, a safe illuminant had been sought as a less expensive substitute for whale oils. (more…)

For years it was out of desperation that observers have advised and viewed of American energy policy and geopolitical risks regarding American obsession with oil. United States have become very sensitive to permanent events in the Gulf region. But the great surprise was the American public seems quite happy to give thousands of young soldiers in a desert war against other nation with huge cost inline. (more…)

The pressure relief valves protect against the devastating effects of the overpressure. Unfortunately there are so careful with the environment and which are not always made leakproof, and can therefore be emitting harmful gases into the atmosphere continuously. While European directives aimed at reducing emissions of gases causing the greenhouse effect based on a share issue (linked to heavy fines for countries that fail), other solutions much easier go unnoticed. (more…)

The most widespread and practical process for capture solar radiation as organic fuels is the growth of virgin biomass. Extremely large quantities of carbon are fixed each year in the form of terrestrial and aquatic biomass. (more…)

The relationship of gross national product per capita to energy consumption per capita for most countries of the world correlates very well with the status of economic and technological development. The World Bank defines developing countries as low-and middle-income countries for which the annual gross national product is $5999 or less per capita (World Bank, 1989; U.S. Congress, 1991). (more…)

Recently, attention to energy efficiency has been gaining momentum. The attention given by policy maker is mainly due to concerns about climate change emissions of carbon dioxide from fossil fuels. Particular attention has been paid on how the role of technological improvements in energy efficiency can help reduce carbon dioxide emissions. (more…)

In 2001, there were 14,000 small wind turbines for home/domestic use in the United States. The market potential for national and international market for small wind turbines is growing and have bright prospect. Small wind turbines as producing small energy are having the capacity up to 8% of the electricity needs of the United States in 2020. (more…)

In 2006, total world wind generating electricity capacity was around 72,000 MW, producing some 160 terawatt-hours (TWh) per year of electricity. As of the end of 2006, the top wind producers were Germany, with 20,622 MW; Spain, with 11,615 MW; and the United States, with 11,575 MW.

Even so, wind accounts for only about 1 percent of the world’s total energy use. (more…)