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Solar Power

Solar energy – Development, deployment and economics

Beginning with the surge in coal use which accompanied the Industrial Revolution, energy consumption has steadily transitioned from wood and biomass to fossil fuels. The early development of solar technologies starting in the 1860s was driven by an expectation that coal would soon become scarce. However development of solar technologies stagnated in the early 20th& [...]

Wind Energy

Hydrogen economy – Examples and pilot programs

Several domestic U.S. automobile manufactures have committed to develop vehicles using hydrogen. The distribution of hydrogen for the purpose of transportation is currently being tested around the world, particularly in Portugal, Iceland, Norway, Denmark, Germany, California, Japan and Canada, but the cost is very high. Some hospitals have installed combined electrolyzer-storage-fuel cell units for local [...]

Energy Efficiency

Electrolysis – Electrolysis of water

One important use of electrolysis of water is to produce hydrogen. :2 H2O(l) → 2 H2(g) + O2(g); E0 = +1.229 V Hydrogen can be used as a fuel for powering internal combustion engines by combustion or electric motors via hydrogen fuel cells (see ”Hydrogen vehicle”). This has been suggested as one approach to shift [...]

Sustainable Energy

GVEP International – History

The origins of the Global Village Energy Partnership (GVEP) lie in the Village Power Conferences hosted by the World Bank, USAID, the US Department of Energy, the National Renewable Energy Laboratory, Winrock International and several private companies during the 1990s. These events brought together hundreds of international participants from 60 countries to share lessons learned, [...]

Sustainable Energy

Sustainable energy – Green energy and labelling by region

European Union Directive 2004/8/EC of the European Parliament and of the Council of 11 February 2004 on the promotion of cogeneration based on a useful heat demand in the internal energy market includes the article 5 (”Guarantee of origin of electricity” from high-efficiency cogeneration). Finland Finnish electricity markets are among the most liberal of the [...]

Wind Energy

GE Wind Energy – Products

The company currently produces three types of wind turbines, ranging from to . GE 1.5MW Developed with the cooperation of the United States Department of Energy, the class wind turbines. It consists of three fibreglass blades attached to a horizontal axis hub. The hub is connected to the main shaft which turns a multi-stage system [...]

Solar Power

Solar power – Development

1800-1900 Beginning with the surge in coal use which accompanied the Industrial Revolution, energy consumption has steadily transitioned from wood and biomass to fossil fuels. The early development of solar technologies starting in the 1860s was driven by an expectation that coal would soon become scarce. However development of solar technologies stagnated in the early [...]