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 home wind turbines. Show all posts
Showing posts with label home wind turbines. Show all posts

Sunday, April 6, 2014

Wind In The News Nebraska Should Get On Board With Wind Power Lawmakers Say

Wind In The News Nebraska Should Get On Board With Wind Power Lawmakers Say
From the Lincoln Journal-Star, January 16, 2015

By Zach Pluhacek


Surrounding states continue to outpace Nebraska in their production and promotion of wind power and other renewable energy sources, a group of state lawmakers said Friday.

Five senators plan to introduce bills providing tax incentives and encouraging the state to better market its wind resources.

Nebraska is "already behind the curve" compared with other states, said Sen. Ken Haar of Malcolm. "We just need to get on board."

One bill, by Sen. Jeremy Nordquist of Omaha, would provide a production tax credit of 1.5 cents per kilowatt hour for renewable power. A federal credit of 2.3 cents per kilowatt hour expired in December.

Sen. Ken Schilz of Ogallala, chairman of the Legislature's Natural Resources Committee, will propose legislation that would direct the Nebraska Energy Office to identify potential customers for wind energy produced in Nebraska.

And Sen. Al Davis of Hyannis will introduce a bill to extend the state's nameplate capacity tax - now limited to wind - to projects using other forms of renewable energy, such as solar.

Haar and Sen. Heath Mello of Omaha are introducing bills to streamline the approval process for renewable energy projects.

Nebraska's existing transmission infrastructure could handle at least 2,000 megawatts of additional wind energy capacity, according to a study conducted last year by the Nebraska Power Review Board at the request of the Legislature.

"Let's double down on wind and get something done," Davis said.

Friday, November 14, 2008

Solar Panels Increase Home Values Across Usa Confirms New Berkeley Labs Study

Solar Panels Increase Home Values Across Usa Confirms New Berkeley Labs Study
Installing solar panels can significantly increase your home's value, according to a new study from the Lawrence Berkeley National Lab (LBL). The report, titled "Selling into the sun: Price premium analysis of a multi-state dataset of solar homes", builds on previous research which concluded that homes with solar in California sold for more than those without.

In addition to California, the new study investigates home pricing trends Connecticut, Florida, Massachusetts, Maryland, North Carolina, New York and Pennsylvania by analyzing the sales of over 20,000 homes in these states. LBL's analysis of the housing markets in these other states shows that the premium paid for homes with solar is not a phenomenon isolated to the Golden State.

The takeaway is this: If you are thinking about purchasing a solar system for your home, the study's conclusions should give you a boost of confidence that you are making a smart investment. LBL finds that homes with solar panels will benefit from a 'solar premium' when they are sold because buyers are willing to pay more for a home with solar panels.

The solar premium is how much more your home will be worth with a solar panel system as opposed to without one. Here's an example: if your home has a 3.6 kilowatt (kW) solar system (the national average) on its roof, this means you have 3,600 watts of solar power (1kW = 1,000W). LBL says that each watt of solar you have will add approximately 4 to your home's value if you live in California and about 3 if you live elsewhere. THIS MEANS THAT, THANKS TO YOUR 3.6KW SOLAR SYSTEM, YOUR HOME SHOULD SELL FOR ABOUT (4 X 3,600W =) 16,000 MORE IF YOU LIVE IN CALIFORNIA OR ABOUT (3 X 3,600W =) 12,700 MORE IF YOU LIVE OUTSIDE OF CALIFORNIA.

What is surprising about these figures is that they are very close to what you would pay for a brand new solar system today. Our own analysis of prices for 6kW solar systems in California reveals that some of the more expensive systems cost just over 4/W. And bear in mind that these prices are what you would pay before you take into account the generous 30% Federal tax incentive that is available until the end of 2016.

The report notes that the difference between the solar premium in California as opposed to the non-Californian states is "not statistically significant": The lower premiums may be due to "lower net costs and income estimates" in the other states. In essence, the premiums in non-Californian states may have to do with lower solar installation prices and electricity rates rather than because solar has a lower valuation there.

ALL OF THIS SUGGESTS THAT IF YOU SELL YOUR HOUSE SOON AFTER YOU HAVE SOLAR SYSTEM INSTALLED, YOU WILL RECOUP MOST OR ALL OF YOUR INVESTMENT, EVEN AS YOU SAVE MONEY ON YOUR POWER BILLS. It also confirms what we've said before: Payback periods on solar power systems are not something to be overly concerned about. Your solar system will either increase your home value significantly should you decide to sell your house, or it will pay itself off in power bill savings before you move out. In both cases, solar is a sound investment.

OTHER INTERESTING POINTS FROM THE REPORT INCLUDE:

* The solar premium for newly-built homes was slightly lower than for older homes, indicating that retrofit solar installations are valued the same as systems which are built into the home.

* The /W solar premium was smaller in homes with larger systems, indicating that there may be a 'green cache' effect. As the report says, "Buyers might be willing to pay a certain amount for having any size of PV system on their homes and then some increment more depending on the size of the system".

* The authors recommend that homes that went solar through solar leases or PPA programs should be an area of future research; the current study examines only homes with owner-owned systems.

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