Tag: photovoltaic

Photovoltaics (PV) is the name of a method of converting solar energy into direct current electricity using semiconducting materials that exhibit the photovoltaic effect, a phenomenon commonly studied in physics, photochemistry and electrochemistry. A photovoltaic system employs solar panels composed of a number of solar cells to supply usable solar power. The process is both physical and chemical in nature, as the first step involves the photoelectric effect from which a second electrochemical process take place involving crystallized atoms being ionized in a series, generating an electric current. Power generation from solar PV has long been seen as a clean sustainable energy technology which draws upon the planet’s most plentiful and widely distributed renewable energy source – the sun.

The Physics of CHP Cogeneration and Heat Engine Efficiency

The Physics of CHP Cogeneration and Heat Engine Efficiency

How does CHP work? To understand CHP you have to begin with the Carnot cycle, and how it describes the function and efficacy of any heat engine. The thermodynamic Carnot cycle (proposed by Nicolas Carnot in 1824) is a four-stage process that describes the reciprocal operations of a heat engine

Schneider Electric Unveils Advanced Microgrid at Boston One Campus HQ

Schneider Electric Unveils Advanced Microgrid at Boston One Campus HQ

The microgrid will provide cost savings, increased reliability, and sustainable energy production

Schneider Electric, the global specialist in energy management and automation, today unveiled an advanced microgrid at its Boston One Campus (BOC), the company’s North American headquarters in Andover, Massachusetts. The microgrid was built by Schneider Electric and REC Solar,

Microgrid Technology to Improve Energy Security and Sustainablity

Microgrid Technology to Improve Energy Security and Sustainablity

Nearly 25 years ago, Caterpillar opened a proving ground about 30 miles southwest of Tucson, AZ. The facility consists of large open-air test areas, where Caterpillar conducts field trials of many of its large mining equipment before being brought to market. The proving ground site also includes workshops and an office building.

The Green

IAPMO Seeks USEHC Geothermal Piping and Photovoltaic Task Group Members

IAPMO Seeks USEHC Geothermal Piping and Photovoltaic Task Group Members

The International Association of Plumbing and Mechanical Officials (IAPMO®), publisher of the Uniform Solar Energy and Hydronics Code (USEHC), is accepting applications and seeking technical experts to participate on task groups relating to geothermal piping and photovoltaic systems.

The scope of the Geothermal Piping Task Group is to review Items 97,

Transforming Landfills Into Resources

Transforming Landfills Into Resources

A landfill can be like a baby: It is helpless to care for itself; while it’s growing, it eats all day; at night when resting, it must be protected from the elements; and it belches constantly. If you’re lucky, it won’t stir up much fuss. If you’re not lucky, the neighbors

Project Profile – Microgrid Technology

Project Profile – Microgrid Technology

Nearly 25 years ago, Caterpillar opened a proving ground about 30 miles southwest of Tucson, AZ. The facility consists of large open-air test areas, where Caterpillar conducts field trials of many of its large mining equipment before being brought to market. The proving ground site also includes workshops and an office building.

The Green

Financing Solar and Energy Storage in Schools

Financing Solar and Energy Storage in Schools

Jason Coughlin, a solar analyst at the National Renewable Energy Laboratory, was coauthor of a 2011 report, “Solar Schools Assessment and Implementation Project: Financing Options for Solar Installations on K–12 Schools.”

“Schools have continued to install solar using power purchase agreements (PPAs) and the trend is to continue seeing third-party installations,” says Coughlin.

Energy Management Systems

To exemplify the evolving nature of energy management systems, Greg Turner, vice president for Honeywell Business Solutions, recalls a recent conversation in which a hospital facilities manager spoke of how he’d have to come up with budget figures once a year that would either be accepted or rejected.

“Now I get calls almost

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