Archive for December, 2010
Solar Energy – A Look At The Cost Benefits And Drawbacks
Solar energy has achieved more exposure in recent decades than it has at any other time. The current global economic and environmental climates have sent people in search of alternatives to the fossil fuels that dominate the energy market. One of the factors hindering solar energy’s growth is the uncertainty surrounding its cost and the benefits gained from it. Basically, the question people want answered is how cost effective it is to switch to solar energy?
The initial cost of a solar energy system installation tends to scare some people off. As with any investment, however, the long-term impact needs to be studied. Various tax credits and other incentives will affect the cost of installing a solar energy system, but one could expect to receive a bill for around $2,500 to $82,000. That seems like a pretty big window, but this is based on systems that can adequately power anything from a home to an office building. Compare those figures to the average $60,000 over 20 years that fossil fuels would cost and you get an idea of solar energy’s cost effectiveness to your needs. Because the sun’s rays are renewable, the setup costs are all that are incurred, aside from maintenance down the road.
At the moment, many may not find it feasible to fully eliminate the use of fossil fuels, but even using solar energy to augment a power system helps. There are some places on Earth that don’t receive many sunny days or direct sunlight, but dwellings in these regions will still find smaller electric bills if their building has solar panels. A hybrid system may not rely solely on solar energy, but it is still significantly cheaper than using electricity generated by fossil fuels alone.
Solar panels themselves have come down in price in recent years. Their cost was one of the obstacles that residential solar energy generation faced, but it is less of a concern these days. Prices currently range from around $9.50 per watt to $11.00 per watt depending on the material from which they are constructed. Flat plate collectors that can daily heat 40 to 80 gallons of water usually run from $2,000 to $4,000.
Solar energy systems really don’t cost much more than any moderate home improvement project. Solar’s long-term cost effectiveness will depend on how much energy a household or business requires and how much it cost to buy it initially. If the primary cost of implementation is reasonable, there is a good chance that solar will be more cost effective than dirty fuels.
Now Try – Solar Panels Cost
How Is Solar Power Hot Water Manufactured At Home?
Using the sun to heat water isn’t a new idea. Solar power has been used for years to heat water for homes and organizations around the earth. In a number of countries, like Israel, photo voltaic hot water systems are nowadays obligatory for residential use.
With energy rates growing, experts report that photo voltaic water heaters now pay for themselves within 4-8 years!
Obviously, one of the best reason to set up a solar water heater is the positive impact regarding environment – no fossil fuels or nuclear used to generate the power to supply your home with hot water – only clean power provided from the sun.
A sun driven water heating system, is made up of a pv heat collector, housed in an insulated framework, one surface of which, is made of toughened glass which faces the solar’s arc. The complete unit, or cell, needs to be positioned in an unobstructed, elevated site in order to trap the maximum quantity of daily sunlight. Based upon heating requirements, a group of photo voltaic panels might be placed in parallel. Adequate solar power might still be taken from the sun throughout the winter to keep the solar panel working.
The most general heat collector, used for pv hot water systems, is usually a very thin sheet of copper plating that covers the insulated base of the collector’s framework. A series of copper tubes are added to the copper plating and are connected to a small header cistern at either end of the unit. When mounted, a photo voltaic panel ought to be oriented at an angle of about forty five degrees so as to enable maximum exposure to the sun.
A cell may be installed on a free standing frame, or the pitch of your roof, given that the chosen zone could carry the weight of your panel as well as a 50 gallon hot water receiver.
Water is fed from a port near the underside of your receiver into the lower reservoir of your photo voltaic cell, and is forced all through the collector tubes, where it is heated by solar power. The heated water is collected inside the header tank at the top part of the cell and after that piped into a port near the top of the receiver.
Hot water can be piped to its destination from the delivery port near the top of the receiver, The pv panel is incredibly effective throughout sunny days and can in reality produce boiling water. Because of this, a pressure release valve must be hooked up on the very top of the receiver, an outlet to a gutter or drainis required to dispense with the hot water and steam.
Photo voltaic heating offers several benefits to house owners and naturally to the ecosystem.
Anyone considering updating their present water heating system or renovating or else building a property ought to seriously think about fitting one of these environmentally friendly systems.
Solar Choice Australia can help design and fit a solar power system able to supply all your energy needs. Based in Adelaide, South Australia we have 50 years experince iwith all types of solar energy systems. Call us now (08) 8294 7064
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How To Find The Main Benefits Of Installing Solar Energyat Home?
How to define the key Benefits of installing solar energy in my Home?
Although you will discover lots of clear-cut attributes for solar energy, below are six unambiguous benefits of putting in a solar electric system in your own home now.
1. Protects you against mounting electrical energy prices.
Demand for electrical energy is rising, and fossil fuel supplies are rapidly reducing. Electrical energy fees can continue to escalate in view of the fact that this imbalance creates price surges. Utility rates are soaring more rapidly than inflation. Setting up a solar energy system will enable you to be self-reliant and slash the amount of electricity that you buy over the grid. This sequentially, will protect you against ever-increasing prices.
2. Solar Power is a smart investment decision.
Over the course of its life span, a solar energy system can be described as great investment decision. It is a low-risk, high-return commitment that is definitely enormously competitive with other kinds of investments (stocks, bonds, or property). Solar Choice Australia know how to check out your specific situation and gauge your approximate return on expenditure of money and what you will save over the life of the system. Seeing as electricity rates continue to rise, your investment in solar energy solely gets better and better!
3. Improve the worth of your own home
A low carbon house is an increasingly attractive proposition to potential home buyers. Like any home improvement, a solar energy system should improve your home as regards-sale value by the worth of the installation. Accordingly regardless of whether you move out of your present house, your solar energy system will have reduced your monthly utility statement and increased the worth of your own home when you do decide to sell.
4. Environmental responsibility
Solar power is environmentally friendly. Matched against fossil fuels which release greenhouses gases, carcinogens and carbon dioxide, solar cells do not release a thing into the atmosphere. Solar energy is renewable. We never have to fret with reference to running out of sunlight or using it all up. The sun is a consistent energy source meaning it’s always going to be there every day. A 3kW solar power system will eliminate 93 tons of greenhouse gases over its existence. That is equal to not driving 300,000 km’s or planting 49,672 square metres of trees.
5. Feed-In-Tariff
In accordance with South Australian state laws, your utility company will pay a premium fee for each kWh of solar electricity that you generate but don’t use. Surplus electricity is exported back to the grid and payment is generally received in the form of a credit on your statement.
6. Solar Credits Scheme
The Solar Credits Scheme replaces the Solar Homes and Communities Plan rebate scheme. As distinct from the previous rebate deal the solar credit scheme is not means tested, and is available to organisations as well as households and community groups. Under the Solar Credits Scheme, customers who put in solar energy systems get 5 times the number of RECs (Renewable Energy Certificates) for the first 1.5 kW of system capacity. Each system, according to its productivity carries with it a specific quantity of RECs. Solar Choice Australia offer a discount on the purchase price of a solar energy system in return for the RECs. This discount is calculated using the current market value of RECs.
Find out more about Solar Energy at Solar Choice Australia . We have fifty years experience designing, installing and maintaining in Adelaide and South Australia.
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How Photovoltaic Hot Water Systems Run
Flat Plate PV Collectors
Flat plate collectors work on copper pipes passing through a glass covered collector, habitually fixed with a water storage container on the roof. The hot water will next thermo-siphon in and out of the cistern, hence heating the water.
Evacuated Tube Solar Collectors
Evacuated tubes make use of a glass tube having a vacuum within it with copper pipes running through the centre. The copper pipes are all connected to a typical manifold and that is then joined to a slow flow circulation pump which pumps water to a storage reservoir beneath, as a result heating the hot water in the course of the sunlight hours. The hot water can be utilized at nighttime or the following day due to the insulation on the tank.
The evacuation tube stye of solar energy hot water systems are superior as they can extract the heat out of the air on a damp day and do not call for direct sunlight. Because of the vacuum within the glass tube, the whole effectiveness in all areas is superior and there’s superior performance if the sun isn’t at an optimum angle – like if it’s early each day or in the late afternoon.
The Water Tank and Thermal Mixing
As heat rises, the hot water delivered into the reservoir from your solar collector is taken from the top to be used in your home. Because the heat of the water could exceed sixty degrees Celsius/one hundred and forty degrees Fahrenheit (a prerequisite to kill bacteria), so as to make certain of a safe temperature at the taps, a tempering valve can decrease the heat to about forty five degrees Celsius/113 degrees Fahrenheit.
Electric and Gas Boosters
Even as the sunlight can offer adequate energy to provide you with loads of hot water for a lot of the time, there can be extensive periods of gloomy, frosty days where your system will need a helping hand. This is supplied with an electric boosted or gas booster system.
Boosting with a tankless gas water heater would be the best boosting approach seeing that boosting only occurs once hot water is used. With an electric method, the reservoir is heated the moment the internal temperature drops.
Retrofitting intended for solar hot water
But if your current hot water system has a lot of operative life left or else you’ve lately purchased a gas/electric hot water system, you are able to even now go solar with a retrofit kit!
Solar Choice Australia is based in Adelaide, South Australia offers you 50 years of experience and knowledge of Solar Hot Water Systems, Renewable Energy sources and all aspects of Solar Power. Contact us for a free quote (08) 8294 7064
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Solar Panels for Homes: A Cheaper Power Source for Every Household
Solar Panels for Homes: A Cheaper Power Source for Every Household
More and more homeowners are seeing the need of solar panels for homes these days. Besides being the newest and safest source of energy, the solar panels come ready to be used at home. However, these solar panels are already a lot different than the older versions of the solar panel systems. Today, solar panels are high powered, which can cater most of the household needs.
As compared to the older panels, the modern ones are not too ugly and too big that sits on your roof anymore.Panels for homes today can be installed on the roof without even anyone noticing it. Plus, despite being small, they can impressively offer you more energy.
The Advantages of Installing Solar Panels
One of the best benefits of using solar panels at home is their nature of being friendly to the environment. Since the use of solar panels can greatly reduce your traditional electricity consumption, you are giving a lot of favor to Mother Earth already. Moreover, solar panels are also cheap sources of energy. Despite the fact that installing them can cost you a lot, continuously using them will provide you a lot of savings. This is especially helpful today that fuel and electricity are becoming more and more expensive.
Moreover, solar panels at home can also help you in saving money in terms of electric bills. For one, if your household will be using a combination of traditional and solar energy, the monthly utility bills will undeniably be cut lower than normal.
Effectiveness of Solar Panels
It is true that panels before cannot provide you your much needed energy at home. However, with the technology advancing, panels of today can already cater the electricity needs of your entire household. This is especially true if you installed a good number of solar cells at home. As you know, the more cells you have the more electricity the panels can provide for your home.
A typical solar panel installation can power up all the appliances in a modern home. In fact, even your big screen television and refrigerators can already be supported by the solar panels. Same is true for your air conditioning system.
Installing solar panels for home could be really an expensive project for a typical homeowner like you. However, if you come to think of it, the benefits of solar panels to you, your home, and environment is already worth the expenses you spend for its installation. Also, even if you operate on a budget, you can still have an installation of solar panels at a cheaper cost. With the introduction of cheap DIY solar panels, you can take advantage of the benefits of solar energy despite having no initial budget for it.
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