Fluorescent lamps are very energy efficient compared to electric light bulbs which waste a lot of electric energy as heat. The saved energy can be used right in place to operate an electric heater.Read full article
Stephen Drew is the steering engine behind a successful project to improve the energy efficiency in Fonterra, a large industrial corporate in New Zealand. In a country that is well down in the OECD country rankings for energy efficiency, Stephen and his team have shown that things can be done and with short resources.Read full article
The IEA assesses interactions
Energy security and climate change are two major public concerns. Most governments are intervening with policies aimed at ensuring a continuous energy supply and reducing carbon dioxide emissions. But how are those two objectives related? And which policies can maximise both goals?
The International Energy Agency (IEA) studied these questions and published its findings in the book Energy Security and Climate Policy/Assessing Interactions, released on 28 March 2007. The book does not take positions on what actions should be taken. Its merit lies in the fact that it offers governments quantitative tools to assess policy choices.
Concerning energy security, the book focuses on the danger of market concentration of fossil fuel resources. Other energy security issues (supply disruptions due to extreme weather conditions, short-term balancing problems, etc.) are not discussed since they have no direct link with climate change mitigation.Read full article
I have been following the development of Flat screens for some time now. There is now a split between the applied technology as to whether it is a plasma screen or an LCD screen. In terms of picture quality the plasma screen is presently ahead of the LCD screen. My concern is, what are the energy saving opportunities in terms of the two technologies employed here.
The last time I checked the wattages of a 17” flat screen is far more than that of a 17” Cathode Ray Tube monitor.Read full article
Creating a sustainable energy system requires commitment and firmness. A suggestion for the latter is to put warning labels on low-performing equipment and has been presented on workshops in Korea.
The idea is comparable with warning labels for alcohol and tobacco and seems to have originated in the Australian plan to lower the standby power.Read full article
I would like to ask you whether you can suggest me a comprehensive paper or article regarding Energy Efficiency, the costs $$ versus benefits $$ of implementing such programs, for the Utilities and Costumers. Or perhaps you can contact me with the person who might help me.
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One of the ten 'Emerging technologies 2007' of the MIT Technology Review
Quantum-dots are tiny crystals of semiconductors just a few nanometres wide. Due to their unique ability to interact with light, they have the potential to significantly increase the efficiency and lower the price of photovoltaic cells.
Currently, the most efficient photovoltaic cells are made out of crystalline silicon. In silicon, one photon of light frees one electron from its atomic orbit. In quantum-dots made out of particular materials, up to seven electrons are freed per photon when exposed to high-energy ultraviolet light. Moreover, quantum-dots can be produced by simple chemical reactions, while crystalline silicon wafers are relatively expensive to manufacture.Read full article
This time from UNEP, United Nations Environment Programme. This one reiterates that the buildings in the world consume some 30-40% of the global energy and that they can be improved substantially. When it comes to the overall facts, there is little surprise. This one, however, addresses a lot of people with the message that what they call "passive" measures (saving that is), should be subject to technology-transfer instruments such as the CDM in the Kyoto-mechanisms. Active measures (energy supply that is) are already eligible for CDM. Read full article
EU and G8 leaders met on the 20th and 21st of April in Berlin for a conference on ‘Energy Efficiency – Shaping Tomorrow’s World’. The objective of the conference was to foster the dialogue on market-oriented solutions for the demand side and to support the ongoing policy making process aimed at enhancing energy efficiency. The main focus was on strategic issues to greater promotion of energy efficiency and on energy efficiency issues in electricity, buildings and transport sector.Read full article
Containing 550,000 thin film PV modules
The approval for the Waldpolenz solar park was granted in February and construction work has already begun. Waldpolenz is a project of the juwi group, based in Mainz, Rhineland-Palatinate, Germany. The new solar plant will be located on a former military air base near the communities of Brandis and Bennewitz, east of Leipzig (Saxony, former eastern Germany). Construction will be completed by the end of 2009.
The plant will have a capacity of 40 MW. This is to be compared with the largest PV plant currently in operation, which is the 11 MW solar plant of Serpa, Portugal, inaugurated this month.Read full article