Biofuels have been around as long as cars have.

A biofuel is a fuel that contains energy from geologically recent carbon fixation. These fuels are produced from living organisms.

Generating Electricity from Wing Waves.

Wind turbines, like windmills, are mounted on a tower to capture the most energy. At 100 feet (30 meters) or more aboveground, they can take advantage of the faster and less turbulent wind.

Producing electricity from solar energy.

Solar energy is a free, inexhaustible resource, yet harnessing it is a relatively new idea. The ability to use solar power for heat was the first discovery.

Turbines catch the wind's energy with their propeller-like blades.

A blade acts much like an airplane wing. When the wind blows, a pocket of low-pressure air forms on the downwind side of the blade.

Solar energy may have had great potential

Solar technology advanced to roughly its present design in 1908 when William J. Bailey of the Carnegie Steel Company invented a collector with an insulated box and copper coils.

We have been harnessing the wind's energy for hundreds of years.

For utility-scale sources of wind energy, a large number of wind turbines are usually built close together to form awind plant.

Biofuels are produced from living organisms.

In order to be considered a biofuel the fuel must contain over 80 percent renewable materials.

Geothermal energy is the heat from the Earth.

Resources of geothermal energy range from the shallow ground to hot water and hot rock found a few miles beneath the Earth's surface, and down even deeper to the extremely high temperatures of molten rock called magma.

Geothermal heat pumps can tap into this resource to heat and cool buildings.

A geothermal heat pump system consists of a heat pump, an air delivery system (ductwork), and a heat exchanger-a system of pipes buried in the shallow ground near the building.

In the future, civilization will be forced to research and develop alternative energy sources.

Possession of surplus energy is, of course, a requisite for any kind of civilization, for if man possesses merely the energy of his own muscles, he must expend all his strength - mental and physical - to obtain the bare necessities of life.

Showing posts with label solar pv business. Show all posts
Showing posts with label solar pv business. Show all posts

Monday, March 30, 2009

Companies Turn To Technology To Engage Consumers In Smart Energy Management

Companies Turn To Technology To Engage Consumers In Smart Energy Management

Most of us in America would argue that affordable and reliable energy access is a basic life necessity, possibly even a basic human right. However, JD Power & Associates recently reported that only 3% of consumers are actually reviewing their energy usage more than once a month. Interaction with this commodity is almost entirely passive. Utilities do whatever it is they do to keep the electrons flowing, and we pay the bill.

With all of the public attention that energy's impact on climate change has received in recent months-including IPCC findings that human-induced global warming is "unequivocal" and a new EPA regulation on coal-fired power plants-consumer awareness and interest in curbing our reliance on dirty energy is on the rise. Concurrently, the massive influx of residential clean energy technologies is providing unprecedented opportunity for the public to participate in climate change solutions.

KNOWLEDGE IS POWER


Consumer engagement is growing in part because of tech giants' literal implementation of the adage that knowledge is power. Significant movement in home energy management is taking place across the industry. Just this year, Google made a 3.2 billion acquisition of the Nest Thermostat, Apple unveiled their home automation platform HomeKit, and the energy data analytics start-up Opower had its initial public offering.

MORE FINANCING OPTIONS


Homeowner options to augment energy management with localized, renewable energy generation are also increasingly viable. As the cost of solar photovoltaic (PV) systems continues to plummet, noteworthy organizations are providing creative financing to help get these systems on our rooftops. Amongst the options are Solar Mosaic's crowd-funding model, Solar City's PV leases, and Grid Alternative's volunteer-based program that provides PV to low-income families.

ENERGY STORAGE TECHNOLOGIES ON THE RISE


With a plethora of energy storage technologies in development, including those championed by serial entrepreneur Elon Musk around electric vehicles and on-site batteries, the possibilities for creating, managing, and storing clean energy at home are expanding exponentially as well.

SMART HOMES AS THE NEW NORM


I cannot wait for the day when carefully controlled energy flows through each of my home's gadgets-appliances, electric vehicle, rooftop PV, and on-site storage-before the connection to my local utility is engaged to balance any shortage or excess. A few years ago, it would have been easy for most to write my dream home off as some Jetsonian fantasy. However, residents of smart home demonstration projects across the globe, such as those of Pecan Street in Austin, Texas, are proving all of the necessary technologies exist today.

If the technology is ready to do its part in curbing home energy impact on global climate change, the question remains: are we?

Editor's Note: ClearlyEnergy is proud to repost this article courtesy of the Environmental Defense Fund. Author credit goes to Claire Dooley, student at the Bren School of Environmental Science & Management.