Archive for the ‘Energy’ Category

Jul24

Solar grid parity

Solar Power

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One of the most common complaints about solar power is that it is too expensive and that the only reason it gets deployed at all is by virtue of government subsidies and tax credits.  Historically, there was some amount of truth to this criticism but the times they are a-changing. (more…)

Jul23

Versatile duckweed

Alligator in Duckweed

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Duckweed is a tiny and extremely simple flowering aquatic plant that floats on or just beneath the surface of still or slow-moving bodies of fresh water.  It is an important high-protein food source for waterfowl and is even eaten by people in some places.  Duckweed is extremely fast growing and is capable of doubling its population in as little as 48 hours.  In warm climates, it can grow pretty much anywhere. (more…)

Jul21

Renewables changing of the guard

Niagara Falls Hydro Plant

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For well over a century, the primary source of renewable energy in the United States has been hydroelectric power. Hydro plants produce over 6% of the country’s electricity.  In places like New York State, home of Niagara Falls, the percentage is much higher. (more…)

Jul18

Commercial buildings and energy

Wall Street

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Buildings account for about 36% of America’s total energy use and 65% of our electricity consumption.  Commercial buildings use about 20% of the country’s energy and most of that is in the form of space heating, space cooling and lighting.  (more…)

Jul16

Growing numbers of electric cars

Electric Vehicle

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As of early this year, the number of electric cars in the world has passed the 400,000 mark.  This represents a doubling of the number from just 12 months ago, which in turn was a doubling of the previous year’s total.   There is no doubt that there is sharp and steady growth in electric vehicles. (more…)

Earth Wise is a presentation of WAMC Northeast Public Radio and The Cary Institute of Ecosystem Studies Follow us Facebook Twiter RSS Podcast