Tag: sources of energy

Sources from which energy can be obtained to provide heat, light, and power. Sources of energy have evolved from human and animal power to fossil fuels, uranium, water power, wind, and the Sun.

Methods to Handle Organic Waste: Compost and Kilowatts

Methods to Handle Organic Waste: Compost and Kilowatts

In 1915, a tragic farm accident reported in The Fruit Grower and Farmer was a mere footnote of local news. Patients from the State Hospital in Athens, OH, whose job was “to tramp down the silage comprised of corn stalks and leaves” were found asphyxiated in a tower silo. The report says

New Converts to Compost and Kilowatts

New Converts to Compost and Kilowatts

In 1915, a tragic farm accident reported in The Fruit Grower and Farmer was a mere footnote of local news. Patients from the State Hospital in Athens, OH, whose job was “to tramp down the silage comprised of corn stalks and leaves” were found asphyxiated in a tower silo. The report says

Energy Performance Contracting

Energy Performance Contracting

Energy efficiency is an integral part of sustainable energy strategies. Implementing a comprehensive energy efficiency reference project that pays for itself through the resulting energy savings can be a complex undertaking.

The idea of an energy savings business goes back to the energy crisis of the late ’70s. Combating energy costs

Editor’s Comments: Sunlight and Water

Editor’s Comments: Sunlight and Water

IT’S SPRINGTIME. As you read this, tiny sprouts, nourished by sunshine and April rains, are pushing through the soil to grow verdant and vital. Their emergence has contributed to the super bloom currently taking place in California’s Anza-Borrego Desert State Park.

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

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

Solar Photovoltaic System from Caterpillar Installed in Rantoul, IL

Caterpillar Inc. today announced that Cat® dealer Altorfer has commissioned a 1000 kW solar photovoltaic (PV) system in Rantoul, Illinois. Built to fulfill a 20-year power purchase agreement with the Illinois Municipal Electric Agency (IMEA), the installation was constructed on an eight-and-a-half-acre site near Heritage Lake Park and the University

Renewable Energy for Onsite Power Generation

Renewable Energy for Onsite Power Generation

Although every situation is unique, and it’s difficult to generalize, Barry Worthington, executive director of the US Energy Association (USEA) in Washington, DC, says progress in renewable energy over the last 10 years has been phenomenal as systems become more efficient. Nevertheless, use of renewable energy for onsite power generation

Slightly Less Dammed

Slightly Less Dammed

We’ve covered the pros and cons of dam removal projects in the past, but less so the consequences of building dams; one exception is this account of a writer’s trip to China during the construction of the Three Gorges project.

The main reason, of course, for building large dams has

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