design and fabrication of automatic street light control system
–Our guest blogger is Prof. Scott Mandia, in a repost.
“Rigorous scientific studies have not identified links between autism and either thimerosal-containing vaccine or the measles, mumps, and rubella vaccine” (Miller and Reynolds, 2009). The scientific community also tells us that the world is round, that smoking is strongly linked to lung cancer, and that
… see a cached copy.
The first link from there doesn’t work. The second does.
This is what they now end with:
“The only people ‘lying’ about spending are the Obama campaign. The only explanation for their hysterical attacks is that they’re afraid that when John McCain and Sarah Palin are in the White House, Barack Obama’s nearly $1 billion in earmark spending will stop dead in its tracks,” Mr. Rogers said.
Duke Energy Corp. (DUK), a U.S. utility that operates 986 megawatts of wind-energy capacity, selected Xtreme Power Inc. to design and install the world’s largest power-storage system linked to a wind farm.
The 36-megawatt storage system is expected to cost $44 million and will go into operation in the third quarter of 2012, Charlotte, North Carolina-based Duke said in an e-mailed statement.
The system will retain power generated when demand is low and can be tapped when electricity consumption is highest or the wind is not blowing. It will make the 153-megawatt Notrees wind farm in west Texas a more reliable source of …
Installing and Maintaining a Small Electric Wind System
With proper installation and maintenance, a small wind electric system should last up to 20 years or longer.
Before installing your system, you first need to do the following:
- Find the best site
- Size your wind turbine
- Decide whether you’ll have a grid-connected or stand-alone system
- Understand your local zoning, permitting, and neighborhood covenant requirements.
The manufacturer/dealer should be able to help you install your small wind electric …
Harnessing the power of the sun’s ray to create energy to power our house is very appealing. But the question is, “Is everything about solar energy good?”
Looking at the current price of fossil fuel-based electricity, it is quite impractical to convert into solar energy system. However, with the growing concern on the state of the earth, there is really a need to find other means of energy aside from what power plants are using right now. Where do you place yourself?
Whether you are an advocate of clean energy or simply care about where your finances go, looking …
It’s not often two government agencies get together to do something that is almost inspired. However, the Environmental Protection Agency (EPA) and the Department of Energy’s National Renewable Energy Laboratory (NREL) have done that by joining forces in their evaluation of sites that could be used for renewable-energy production. These can be Superfund and brown field sites, as well as former landfills and mines. Although there are many such sites, 12 in particular will get a close look for development. They are in California, Florida, Kansas, Massachusetts, Michigan, Minnesota, Pennsylvania, …
… World Trade Organization in Geneva, is the first by the U.S. over green technology after months of complaints about Chinese efforts to force manufacturers to make those products in the country. A government fund for wind manufacturers requires recipients to use domestically made parts, violating WTO rules, the U.S. Trade Representative’s office said in a statement announcing the case.
The complaint “appears to be an appropriate first step,” John Frisbie, the president of the U.S.-China Business Council in Washington, which represents investors such as General Electric Co., the biggest U.S.-based wind-turbine maker, said in a statement. GE and …
Taylor Johnson, Senior Editor
Since passing the American Recovery & Reinvestment Act of 2009 (ARRA), the federal government has been eager to stimulate the renewable energy industry with tax credits and cash grants. So far, the government has awarded $4.6 billion of the $8.5 billion allotted. Cannon Power Group, a San Diego-based renewable energy company, recently secured its second Section 1603 Treasury cash grant. The funds will be used to expand the …
… lot happened in 2010, with the oil spill in the Gulf, flooding in Pakistan, an earthquake in Haiti and a great deal of political and economic unrest around the world. At times, the environment seemed to take center stage, while at others, other priorities seemed to steal the limelight. Books are generally a relatively slow medium compared to 24-7 TV and Internet coverage, although this year has already seen several tomes on the BP disaster.
Still, we’re taking this opportunity to reflect back on some of the environmental books that came out in 2010 and that were authored by staff, contributors and friends of The Daily Green. As it turns out, our relatively small circle is …
The electric element assists the system only when the solar energy cannot maintain the desired temperature or during periods of peak demand. Automatic temperature control thermostat keeps stored water at desired temperature. Our 80 gallon storage tank has two internal heat exchangers for systems that use heat transfer fluids.
Brass drain valve
- Threaded stud located near the outlet for attachment of tank sensors
- Temperature and pressure relief valve included
- Collector feed and return fittings located at front of tank for convenient installation