With a simple stretch, a thin semiconductor material can achieve near 100% light-emission efficiency at all brightness levels. The discovery, reported by scientists at Berkeley Lab and UC Berkeley in the journal Science, has implications for energy-efficient mobile devices and lighting applications.
Since buildings consume 75% of electricity in the U.S., they offer great potential for saving energy and reducing the demands on our rapidly changing electric grid. But how much, where, and through which strategies could better management of building energy use actually impact the electricity system?
Heating and cooling buildings is a large part of global energy demand and a significant source of CO2 and greenhouse gas emissions, and in the coming decades the energy demand for heating and cooling – also known as thermal energy – is expected to grow considerably. Scientists and engineers have made many advances in lowering
One hundred and four U.S. companies, schools, governments, and institutions are taking their building energy savings to a new level with the Department of Energy’s Smart Energy Analytics Campaign, a four-year initiative funded through the Building Technologies Office and facilitated by Berkeley Lab.
Heat waves are becoming a more regular occurrence across the country. Iain Walker, Leader of the Residential Building Systems Group at Berkeley Lab, has suggestions on efficient use of your air conditioner.
A study by scientists at Berkeley Lab modeled several different types and ages of homes, retail stores, and office buildings in cities across California and the U.S. and found that sunlight-reflecting “cool” exterior walls can save as much or more energy than sunlight-reflecting cool roofs in many places.
A national online energy data management system is transforming how energy retrofit projects implemented by a wide variety of users – including local, state, and federal governments – develop projects and track performance.
After serving four years as Berkeley Lab’s Associate Director for Energy Technologies, Ramamoorthy Ramesh will be returning to his research in ultra low-power electronics while also helping to lead a major Berkeley Lab research initiative in next-generation, energy-efficient microelectronics. This new initiative has been dubbed “Beyond Moore’s Law,” as it seeks the solution to what
By using advanced lighting and automated shades, Berkeley Lab scientists found that occupants on one floor of a high-rise office building in New York City were able to reduce lighting energy usage by nearly 80 percent in some areas. The dramatic results emerged at a “living laboratory” set up to test four sets of technologies on one 40,000 square-foot floor of a building.
The knowledge and expertise of a seasoned energy efficiency professional has been packed into a high-tech suitcase. The Sensor Suitcase is a portable case that contains easy-to-use sensors and other equipment that make it possible for anyone to identify energy-saving opportunities in small commercial buildings.