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Efficiency

Easily Reduce Building Energy Use

Written by , on November 16, 2013

According to the US Department of Energy, on average office buildings are empty for about 72% of the time and 55% of their total electricity use occurs during this time. Half of this wasted electricity is used for heating, ventillation and air conditioning. Another 25% is consumed by lighting. The remaing 25% is "plug loads" […]  Read more »

A Better Thermostat from the iPhone Designer

Written by , on January 13, 2012

Tony Fadell, who led the team which designed the first eighteen generations of  the iPod and the first three iPhones, has come up with the Nest thermostat for air conditioning systems. As you might expect, it looks a lot better and is much easier to use than current thermostats – and it also has some […]  Read more »

Street Lighting System Reduces Power Consumption by 80%

Written by , on July 18, 2011

Delft University of Technology is currently testing an intelligent street lighting system which reduces electricity consumption and CO2 emissions by up to 80%, reduces light pollution and is cheaper to maintain than current systems. The system, which was designed by Chintan Shah for a competition to improve the University’s energy efficiency, consists of LED street […]  Read more »

Improved Efficiency Using Waste Heat

Written by , on June 12, 2011

Engineers at Oregon State University have reported that they have achieved a major step toward addressing the waste as heat of much of the energy produced by cars, factories and power plants. The new systems should be able to use much of that waste heat either in cooling or the production of electricity. Currently, more […]  Read more »

Study: Efficiency Could Cut Energy Use by 73%

Written by , on January 28, 2011

A report produced by Dr Julian Allwood and colleagues at the University of Cambridge has analysed buildings, vehicles and industry around the world to determine how much energy would be saved if "best practice" efficiency changes wre applied to them. They found that 73 per cent of global energy use could be saved by introducing such […]  Read more »

New Type of Filter Could Quadruple LCD Efficiency

Written by , on August 31, 2010

Researchers at the University of Michigan have published an article in Nature Communications describing an optical film that promises to boost the overall efficiency of LCDs by more than 400 percent. Normally, LCDs use several layers of optical devices, such as prisms, to colorize, polarize, and shutter light from a backlight,. Inefficiencies in each layer […]  Read more »

New Energy-Saving Air Conditioning

Written by , on June 18, 2010

The U.S. Department of Energy’s National Renewable Energy Laboratory has developed a new air conditioning process with the potential of using 50 to 90 percent less energy than the best current units. The process uses a unique combination of membranes, evaporative cooling and liquid desiccants. It uses the desiccant (highly concentrated aqueous salt solutions of […]  Read more »

95% Renewable Energy by 2050 Blueprint

Written by , on June 16, 2010

Greenpeace International and the European Renewable Energy Council have produced a report titled: "Energy [R]evolution: A Sustainable World Energy Outlook" which provides a detailed blueprint for cutting carbon emissions while achieving economic growth by replacing fossil fuels with renewable energy and energy efficiency. Acopy of the full 212-page report is here; a 16-page summary is […]  Read more »

Greatly Improved Heat Pump Design for Homes and Cars

Written by , on May 14, 2010

University of Warwick researchers have made a breakthrough in adsorption systems design that dramatically shrinks heat pumps making them small and light enough for use in both domestic heating and automotive air conditioning. Researchers have long been aware of a very efficient way to drive heat pumps and air conditioners using adsorption technology. This uses […]  Read more »

US-China Renewable Energy Co-operation

Written by , on December 20, 2009

The United States and China have agreed on a plan for future co-operation on renewable energy. The main elements of the agreement are: Establishment of a US-China Clean Energy Research Centre to facilitate joint research and development of clean energy technologies by teams of scientists and engineers from the United States and China, as well […]  Read more »