Home Solar Energy
Usage of home
solar energy systems has become increasingly popular in many
parts of the
world. Home solar energy
systems provide both electricity and heating which help reduce
bills and save the environment. The rising cost of energy has
allowed solar energy to become a fast growing renewable source
of energy that is in usage today. The main factor why consumers
put off the idea of a home solar energy system is the cost.
Prices of solar hot water panels and solar electricity panels
that are available today are a little expensive for
average buyers. However renewable energy grants are made
available in some countries as an incentive towards the
installation of a home energy system. Such grants could at
times prove to be helpful for getting plans of a home energy
system installation moving ahead. One can consult the
government or local council for the terms and information on
the available grants that would be applicable.
Installing a
home solar energy system at one’s house is a great idea. A
typical 10 KW system over 25 years lifetime would eliminate
over 400 pounds of the nitrogen oxide that produces smog,
eliminating over 1000 pounds of the sulphur dioxide that
creates acid rains and eliminate over 200 tons of carbon
dioxide that contributes to the condition of global warming.
Above all, the government is offering tax grant incentives
for installation of a home solar energy system to consumers
for reducing carbon footprints.
A home solar
system can be installed for most homes except small homes
where roofing size is less than 120 square feet. The largest
of systems require at least 1000 square feet of roof. This
system needs direct sunlight and can work almost anywhere
with these conditions. In case the roof top doesn’t have
sufficient space or there are problems then the system can
be installed on ground or on another elevated space. In some
cities, one needs to obtain permission for installation of a
home solar energy system to the building. The dealer and
installer will know how to get the necessary permits. One
also needs to get permission from your utility company as
the system works with the current utility.
Some people
think that home solar energy is restricted to being useful
only if it’s converted into electricity. At the same time,
they are missing an enormous number of other methods for
cutting down the cost of energy in homes. Amongst other
things, one needs not require photovoltaic panel for using
the passive solar heating system and other devices. There
are several books available on solar systems and how to go
about building them. If you are interested then you could
study books and purchase the affordable materials. For
instance, one might want to design a home cooling system.
Irregardless of whether you would want to make any changes
in the roof or even build the desiccation system, you would
want to take advantage from various solar
devices.
Working of a Home Solar Energy System
A home solar
energy system is normally installed on a roof top where
solar energy would be transformed into DC power (direct
current). The DC power would then be converted into
alternating current, i.e. AC power for residential purposes.
The generated AC power would then be used around the house
for running appliances like televisions, refrigerators,
computers, electric lamps, and others. During the nights,
solar energy will not work. Therefore, during the night, you
will need to draw some power from your local utility. The
utility will provide you with power as usual when
electricity demands would exceed what is produced by your
home solar energy system. In case the day is cloudy, the
home solar energy system will generate lower amounts of
power. Part of the power that is produced by the home solar
energy system during the day is used for charging batteries
that provide power during critical loads in the event of a
power outage.
Home heating
There is one
common misconception that the home solar energy system could
heat the home, which isn’t true. The system could be used
for conversion of solar energy into electrical energy and
this electrical energy could then be used for running the
home appliances; the lights and some other electrical
devices. If you have electrical heating installed then the
system could be used for heating, which is quite rare. There
are some other technologies that convert the solar energy
into heat, however the home solar energy system isn’t used
for the purpose of heating homes. The home solar energy
system doesn’t have any moving parts and the solar modules
are tough. The components will last for several years
without any trouble. Apart from direct savings through the
utility costs, the homeowners would benefit from the
property resale value. For each dollar that is saved
annually in utility bills the home value would be increased
anywhere from about 10 to 20 dollars.
Some facts of home solar energy
Having a
solar energy power generator system at home could prove to
be advantageous. Apart from the obvious benefits of helping
the environment and reducing global warming, it could also
prove to be a cheap and convenient electricity source. In
having a home solar energy system, one needs to know the
working of each component.
The primary
component of the solar energy system are the solar panels
which are also known as photovoltaic modules (PV). These are
the components that collect solar energy and then convert
them into the electricity. Another part is the charge
controller which is an electrical device responsible for the
prevention of batteries overcharging and also for
controlling electricity. The storage or batteries are
components which store the electricity produced which is a
reason why one can use the solar energy during night or low
sun periods. The inverter is responsible for converting
stored energy in the batteries in order to become
readily-usable electricity for household
appliances.
For
households using an average amount of electricity, a one
kilowatt home solar energy system should be sufficient. It
would provide homes with 1,600 kilowatts in one year for
somewhere with a sunny climate while it has the capacity to
provide 750 kilowatts in a year for somewhere with a cloudy
climate. A one kilowatt home solar energy system will
require ten to twelve solar panels that could fit in an area
of 100 square feet which is perfect for backyards and
rooftops. In summary, by using the home solar energy systems
one can help save the environment from wastes &
pollutants which are produced from the burning of coal to
produce traditional energy.
Affordable home solar energy – 3-phase
plan
All of us
know that home solar energy is a great idea and practically
speaking it should make economic sense for the average
American embracing it. Organizing one’s home energy that is
used around the 3 phase plan could make solar energy an
affordable option. With the rising prices of energy,
environmental concerns and dwindling fossil fuel supplies,
all are attuned to solar energy. However, the road to the
solar euphoria isn’t a well worn path. You may at times feel
as if you are the pioneer of a new frontier.
Solar energy
makes great logical sense. Solar energy is available in
abundancy, is clean and is a local energy source. As it
doesn’t have any moving mechanical parts it means there are
minimal requirements for maintenance which makes it very
attractive. Who wouldn’t want their home running on a
limitless local supply of energy that doesn’t put pollution
into the air? Moreover, the current prices of solar help
bring down the price for energy conservation. How could one
afford purchasing a home solar energy system? It is more
expensive when compared to traditional fossil
fuels.
How would you
make it affordable? There are three steps that could be
followed to make home solar energy affordable.
Conservation:
Installing
various technologies and design solutions in order to take
advantage of free energy from the sun would make sense when
combined with serious energy efficiency efforts. The more
energy you can conserve the better – for instance, turning
off the appliances and lights while not in use while also
keeping the refrigerator and freezer doors open for as
little time as possible. However, there are some
improvements that could possibly take you even further in
the quest to build a smart solar energy house.
Some
common ideas on how to reduce energy requirements at
home:
-
Replacing your light bulbs with
the compact “energy saver” fluorescent light bulbs
will reduce your lighting energy costs
immensely..
-
Purchase energy efficient
electronics and appliances.
-
Improve the attic insulation and
wall insulation. For insulating, use the blown
cellulose.
-
Seal
the cracks around the windows, door frames and also
make sure that the doors have insulation strips and
sweeps.
-
Get
an energy audit. This would help you to find out how
to best address the above items plus much
more.
-
Using
high-performance windows, insulating exterior doors
and insulating window shades are all
recommended.
-
Use
light colored metal roofing in order to repel the
summer sun’s heat.
-
Install a programmable
thermostat in order to help avoiding over heating or
over cooling at home.
-
Turn
electronic devices such as TV's, stereos, etc off at
the wall rather than leaving on standby as standby
features can chew through a large amount of
power.
In case you
are building new home then convince your builder for
building exterior walls of 2x6s on the 24” centres as
opposed to the 2x4s on 16” centres. Walls will be strong but
cost some extra for labour and wood, however the extra
thickness of the walls will accommodate for more insulation
while also increasing the R value of the walls. You might
also want to replace the ageing HVAC unit and also get a
heat pump system with the highest advisable SEER rating for
your area. You might also consider ground connected heat
pumps if living in an area that experiences hot summers
and/or cold winters.
The less energy your home can use, the
smaller your environmental impact and energy needs will be.
This process begins with a positive mental attitude. Develop,
maintain, and then teach the conservation habit in all areas of
your life. Recycling is also a great idea.
While practising conservation habits, also
discuss them with your children. Suggest ways your co-workers
and neighbours can begin to practice conservation. Chances are
that they too might share in some great ideas on conservation
with you. In order to learn exactly how to conserve energy
while at home, one can obtain a professional home energy audit.
Phone your local energy provider and ask them if they will do a
home energy audit or know someone who can.
Efficiency
A home energy
auditor can tell you how to conserve electricity in a
general way. More importantly, the auditor will assess your
home for ways you can conserve energy in a practical way
tailored to your circumstances and home. Some of the items
they will check could include windows, insulation, air
conditioning, heating systems, lighting, appliances and your
hot water system.
There are
some things the energy auditor might suggest to you. The
auditor might suggest you change to compact fluorescent
light bulbs and install weather-strip to windows and doors
of the house. He might also suggest installing a timer on
the hot water heater. Having the heating systems and air
conditioning serviced is also suggested. It is best to turn
off the lights on leaving the room. Greater efficiency would
mean less kilowatt hours being used. Fewer kilowatt hours
being consumed will allow you to not have to install a
larger, more costly home solar energy system.
Solar Energy Production
Making an
informed choice for your home solar energy requires a
knowledge of the number of kilowatt hours that your home
uses. On knowing the number of energy kilowatts being used,
solar professionals can calculate the number of solar panels
that are necessary for the number of energy kilowatts your
home uses.
For instance,
if you are living in Texas then the solar system could cost
you about $8 to $10 per watt. It means about $8000 to
$10,000 per 1 kilowatt system. One would be required to
spend about $48,000 in order to buy a 6000 watt array.
However, recent passing of Federal Incentives for efficiency
and renewable energy would cut down its price to about
$33,000. Depending on the state’s policies, these numbers
could be reduced even further. Texas also allows Renewable
Energy Systems Property Tax exemption. The property tax code
would reduce the property tax by the amount that your solar
device increases the property tax. There would be any
increase in the tax due to the increased property value
attributed due to home solar energy equipment.
Usually, the
tax rebates and incentives will differ from state to state.
Local solar professionals will give you information on
current tax incentives and rebates in your state. They will
calculate final costs after the incentives and rebates for
the solar electric system most suitable for your home. After
the efficiency and conservation measures, you may still
consider getting a small solar array which will supply your
portion of energy needs. Put the money you saved on your
monthly energy bill towards the next array of solar panels.
Continue adding more solar panels until you have created
enough energy to meet the requirements of your home. The
home solar energy that is made on your rooftop will put a
smile on your face. Solar energy is a renewable resource
that integrates easily into the home energy equation. With
the right efficiency and conservation measures and the
current tax incentives, solar energy could be more
affordable than you think.
Future of solar energy home
Fantasizing
and dreaming are the fist steps towards innovation. People
all over the world are dreaming of a green world where
entire countries are powered completely by renewable energy.
The experts feel that within the next five years, solar
power will become cheap enough to compete with the
conventional electricity in the US, UK, Australia, India,
and Africa. If the cost of the home solar energy system is
brought down then a larger number of people will start using
solar energy in their homes. In one decade, the cost will
fall so much that even the solar cells will undercut gas,
oil and coal. The technology is found to be leaping towards
being eco friendly and pollution free. Therefore, one can
dream of a green future with the advent of solar energy
homes.
The companies
that produce solar energy products feel this day isn’t far
off when all cities in Europe and America generate lighting,
heating and the air conditioning needs from solar energy for
buildings or homes with sufficient left over in order to
feed surplus back in grid. A piece of the dark polymer
foils, like that of a thin paper sheet could case such a
wonder. It’s 200 times lighter than normal glass based
materials which require expensive roof support and
substrates. It is so much lighter that it can probably
strike the building sides. This could be mass produced in
cheap rolls like that of packaging and could be made in any
color to suit the design and structure of the solar energy
home.
Scientists
from across the globe say the future lies with solar energy.
By using solar energy at home for cooking, driving your car,
heating, and other purposes like street lights, heating
pools, charging cell phones, and powering computers it will
become a way of life.
China too is
embracing the solar technology for future growth. Japan and
India have already moved towards the direction of saving
excess power. The future of solar energy homes is found to
be increasing in the east. Several programs have been
formulated in order to introduce solar energy to millions of
homes within the next few years.
Bang
for your buck
Many people
have started off with grand visions of going 100% solar. it
can be done but a more realistic case is optimizing the
house to suit the amount your budget allows you to spend.
Here is the take on how much bang for your buck you might
get with every type of technology, where 10 =
best.
|
Home Solar Energy
Type
|
New
Home
|
Existing
|
|
Energy conservation/
efficiency
|
10
|
10
|
|
Passive
Solar
|
9
|
7
|
|
Solar hot
water
|
8
|
8
|
|
Solar
photovoltaic
|
2
|
2
|
The solar
photovoltaic (PV) is great but it is an expensive way to use
free energy from the sun. This does not mean that one
shouldn’t do it. The solar photovoltaic is usually an
important part of the smart strategy which helps create a
house that is resistant and efficient to the disruptions of
grid electricity.
Overall,
every kilowatt hour that is generated or is saved with solar
technologies is one kilowatt hour that you need not purchase
from the grid and a kilowatt hour’s worth of the power plant
pollution that you need not add to the planet.
As some solar
equipment may be eligible for state or federal tax
deductions / credits you should consult your local
government authorities or solar suppliers for more
information. Tax breaks for conservation upgrades like
insulation and windows may also be made
available.
|