Welcome to Renewable Energy Guide
The Potential For Renewable Energy Sources In Aviation Article
. For a permanent link to this article, or to bookmark it for further reading, click here.
Photovoltaic Panels - Harvest the Sun Light
from: Hans DekkerThere 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
y saving knowledge
The Potential For Renewable Energy Sources In Aviation News
Tidal power gets a stormy birth
Scotland tries to harness the flow of the tides
Read more...Liberia: Channeling Oil for Sustainable Peace, Energy, Security and Prosperity - President's Houston Address
[Liberia] Houston - Address by Her Excellency Ellen Johnson Sirleaf, President of the Republic of Liberia, at Inauguration of Chevron Excellence in Leadership Energy Lecture Series, the James A. Baker III Institute for Public Policy, Rice University
Read more...Clean Energy At Airports Could Find Space Around Runways, Study Says
A new report by the U.S. Department of Agriculture shows that bustling airports could serve a vital new function, doubling as alternative energy factories.
Read more...Merced City Council gives OK to study solar sites
Research and development of solar energy could be the key to heating up the Valley's economy.
Read more...Fran O'Sullivan: The State goes capitalist
John Key is enthusiastic about the potential for partially privatised state-owned companies to emerge as national champions on the international stage.In Singapore last month, Key talked to Temasek Holdings about the potential for...
Read more...‘Gas to provide 30% of power generation needs by 2040’
Global energy major ExxonMobil, which is expected to spend more than $600mn on biofuels programme over the next decade, has said natural gas will grow to provide 30% of the world’s electricity-generation needs by 2040.
Read more...OriginOil and Algasol enter algae development deal
OriginOil and Algasol, two companies working to develop algae into renewable fuel, have announced a collaboration on growth and harvest technology. The companies hope the partnership will help them reduce cost and improve performance, therefore increasing commercial prospects for algae as fuel source. Harvesting algae is one of the main cost drivers associated with this type of raw material ...
Read more...