Energy & Green Tech

Solar cells with 30-year lifetimes for power-generating windows

A new transparency-friendly solar cell design could marry high efficiencies with 30-year estimated lifetimes, research led by the University of Michigan has shown. It may pave the way for windows that also provide solar power.

Energy & Green Tech

Load-shifting potential of heat pump water heaters studied

A Pacific Northwest National Laboratory (PNNL) research team has gained new insights about heat pump water heaters (HPWHs), an energy-efficient technology that extends the benefits of heat pumps to the task of warming domestic ...

Energy & Green Tech

The Basque Country's industrial waste heat could be reusable

Many traditional industrial processes generate heat that is normally released into the atmosphere but that could be reused. In production processes such as smelting, iron and steel, paper or cement, between 35 and 50 percent ...

Efficient energy use

Efficient energy use, sometimes simply called energy efficiency, is using less energy to provide the same level of energy service. An example would be insulating a home to use less heating and cooling energy to achieve the same temperature. Another example would be installing fluorescent lights and/or skylights instead of incandescent lights to attain the same level of illumination. Efficient energy use is achieved primarily by means of a more efficient technology or process rather than by changes in individual behaviour.

Energy efficient buildings, industrial processes and transportation could reduce the world's energy needs in 2050 by one third, and help controlling global emissions of greenhouse gases, according to the International Energy Agency.

Energy efficiency and renewable energy are said to be the twin pillars of sustainable energy policy.

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