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 renewable energy for your home. Show all posts
Showing posts with label renewable energy for your home. Show all posts

Saturday, February 15, 2014

Harris Mcdowell And His Self Appointed Watchdogs

Harris Mcdowell And His Self Appointed Watchdogs
Harris McDowell's opinion piece in the News Journal starts out by defending his five hearings, scheduled, he says, at the request of Senate leadership:

Some have called these hearings a "charade" or a delaying tactic. That's simply untrue; although it does leave me asking why those who want this deal so badly object so vociferously to a full, public airing of these issues before the state decides whether to take this major step.So, after a year of hearings, analyses, reports, negotiations and thousands of public comments (ten to one in favor of wind power), Senator McDowell woke up one morning and decided we need "a full, public airing of these issues."

Fair enough; maybe he can help us understand the economic impact of the project. Or maybe not:

For instance, to date, no one has been able to offer precise numbers about what ratepayers will be paying over the next 25 years. When my colleagues hear cost estimates ranging from an additional 14 to 75 a month, it makes them understandably nervous.What makes me nervous is the way McDowell is throwing around such spurious figures, oblivious of the fact that someone has offered precise numbers. The Public Service Commission staff, in its final report, offered a number, and it doesn't fall within the range McDowell cites.

The number has two components: the price, which is specified in the Power Purchase Agreement, and the expected cost of energy when the project goes on line, which is at best an educated guess.

The PSC staff report presents a number of 6.46, which is probably high, since it is based on the assumption that natural gas prices will go down. I have described why I don't think that's likely.

Senator McDowell continues by complaining that his critics are "haranguing our effort to inform the public," and suggests further questions for those he describes as "self-appointed watchdogs."

The problem for Harris McDowell and other opponents of offshore wind face is not that the issue hasn't had enough public discussion; no other energy debate in our lifetime has generated as much public interest. Instead, I suspect that the problem for wind power opponents, including Delmarva Power, is that the issue has had "too much" public discussion, and that they have lost control of that discussion.

McDowell's hearings do serve one purpose; they are setting the stage for Delmarva Power to come up with something plausible sounding in time to kill the Bluewater Wind project. The hearings are buying a little extra time for Delmarva Power to come up with an excuse that that sounds reasonable enough to convince enough legislators to kill the wind farm without looking mean or obtuse when it comes to renewable energy.

Senator McDowell is trying his hardest to obfuscate and change the subject, but he isn't going to keep this self appointed watchdog from keeping a close eye on his hearings and correcting the record when weak or fallacious arguments are offered as reasons for killing the offshore wind farm.

Credit: about-alternative-energy.blogspot.com