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5 Star homes to be Mandatory in Australia
The Building Code of Australia seems set to introduce 5-star energy ratings for all new homes. While some associations in the building industry are concerned that this is likely to push the cost of building up, it is s step in the right direction...
Environmentally-Friendly "Earth Homes"
Environmentally-Friendly "Earth Homes" by Lady Camelot What are "Earth Homes?" Earth homes are houses that are basically constructed from the earth. Some earth homes are built from adobe, mud, straw or even underground as an earth-sheltered home....
How to Make the Benchmade Axis Perform
How to Make the Benchmade Axis Perform by Joe Talmadge I've had my Axis for quite a while now, courtesy of Les. I've made this my everyday carry 4"-blade folder, and have learned a bit about what makes this knife perform so well....
Oil Forever ? ( I think not )
Oil Forever ? We all know that this country needs to reduce its dependency on Foreign oil. The question is how (and how long). Recently Ford Motor CEO Bill Ford addressed his concerns, perhaps leading one to question how long it will be...
Solar Energy - Have the Sun pay part of your energy bill
Residential hot water is a significant energy consumer for most households. In fact, hot water is sometimes the largest single energy cost. Using solar energy to provide at least some of the hot water in your household can result in significant...
 
Photovoltaic Panels - Harvest the Sun Light

There is a lot of energy in sunlight and that energy can be converted to electricity with photovoltaic panels. These panels are made up of several photovoltaic cells which are constructed of treated silicon which creates an electrical charge when exposed to sunshine.

Each photovoltaic cell produces just a small amount of electricity, so they are wired together into panels to provide enough current for common household appliances.

Photovoltaic cells come in three basic varieties. Monocrystalline are the most efficient but also the most expensive. They consist of a single crystal cut from an ingot of silicon.

Polycrystalline are the most common and slightly less efficient than monocrystalline. The silicon they are made from have several small crystals.

Amorphous cells are made by spreading the silicon on another material like stainless steel. These cells are cheap to produce but produce significantly less power than the other two types. This means that photovoltaic panels must be larger to produce the same amount of electricity.

Monocrystalline panels are slightly more efficient in low light conditions, but the difference is not significant. When choosing photovoltaic panels the most


significant factor is the amount of available space. If you have lots of room you can install amorphous panels for less money.

As mentioned above, individual photovoltaic cells are wired together into panels which can produce more electricity. The panels themselves can be wired together in parallel or in series to produce a variety of currents suitable for almost any use.

The panels and arrays produce Direct Current (DC) power so it must be converted to Alternating Current (AC) for most purposes. This is accomplished with an inverter.

The AC current from the inverter can be used to power most household appliances. It can also be connected to the breaker box from the utility company so that solar electricity can act as a backup system to regular power supplies. The advantage of using both systems is that if there is any excess electricity produced by the sun it is fed back into the grid for a credit against the homeowner's electricity bill.

About the author:

Hans is author of http://www.alternative-energy-guide.com/  come and profit from our energ y saving knowledge

 

Department of Energy - Homepage
Governmental department whose mission is to advance energy technology and promote related innovation in the United States.
www.energy.gov
 
Department of Energy - Page not found!
US Department of Energy information for consumers, business, and communities. Links to many energy pages of the DOE.
www.energy.gov
 
Energy Quest Room
California Energy Commission's energy and environmental education site for students, parents and teachers. Includes information, Q&As, projects, ...
www.energyquest.ca.gov
 
The Energy Story - Introduction
Detailed guide explains what energy is and where it comes from.
www.energyquest.ca.gov
 
EIA Energy Kids Page - energy facts, fun, games and activities
Features various sections about energy including what it is and the forms it comes in. Find out how humans use energy through quizzes and a 'fun facts' ...
www.eia.doe.gov
 
Energy Information Administration - EIA - Official Energy ...
Section of the US Department of Energy (DOE) providing statistics, data, analysis on resources, supply, production, consumption for all energy sources.
www.eia.doe.gov
 
Energy - Wikipedia, the free encyclopedia
Free encyclopedia article explaining the scientific notion of energy. Includes units of measure, energy transformation concepts, types of energy, ...
en.wikipedia.org
 
Department of Energy - Homepage
U.S. Department of Energy Awards Contract for Management and Operation of Ames ... The Energy Star label is the government's seal of energy efficiency. ...
www.doe.gov
 
Home : ENERGY STAR
US EPA Energy Star programs and products help save the environment and save consumers money by using less energy through advanced design or construction.
www.energystar.gov
 
National Renewable Energy Laboratory (NREL) Home Page
Facility of the US Department of Energy (DOE) for renewable energy and energy efficiency research, development and deployment.
www.nrel.gov
 
European Commission - Energy - Home page
Welcome to the European Commission's "Energy" website ... A European Strategy for Sustainable, Competitive and Secure Energy ...
ec.europa.eu
 
DTI - Energy - Introduction
The DTI’s Energy Group deals with energy-related matters, ... UK energy statistics are provided, including production, consumption and prices. ...
www.dti.gov.uk
 
U.S. DOE Energy Efficiency and Renewable Energy (EERE) Home Page
US Department of Energy web site for information on energy efficiency and renewable energy technologies.
www.eere.energy.gov
 
Energy for America's Future
Provides an overview of President Bush's energy policies.
www.whitehouse.gov
 
International Energy Agency
Energy Security, Growth and Sustainability through Co-operation and Outreach.
www.iea.org
 
energywatch: Home Page
Independent gas and electricity consumer watchdog, providing help to domestic, commercial or industrial energy (gas and electricity) consumers.
www.energywatch.org.uk
 
EnergyAustralia - Home
Details of one of Australia's largest and oldest gas and electricity supply companies. Includes information on accounts, energy saving tips, appliance sales ...
www.energy.com.au
 
U.S. Senate Committee on Energy and Natural Resources
Has jurisdiction over energy policy, regulation, and research. Also deals with energy and mineral conservation, ports used for energy transport, irrigation, ...
energy.senate.gov
 
bloomberg energy prices
www.bloomberg.com/energy/ - Similar pages
 
Energy Bulletin
A clearinghouse of information concerning the peak in global energy such as oil and gas.
www.energybulletin.net
 
 

 
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