There are two basic types of solar water heater systems: passive and active. However, in this article, we will discuss the benefits of using the passive type.

Passive solar systems, generally speaking, are the ones that do not require any moveable parts and no outside energy source other than the sun itself.

They are usually no more as complex as a regular garden hose let out in the sun. Basically, it is a 40 gallon water tank painted in black and placed in a well insulated box which has glass or plastic on one side to allow the sun’s rays to heat the tanks.

Cold water then flows from the bottom and hot water transfers to the top, a process which is made possible by an integral collector storage system, also known as a batch heater or a bread box.

The system uses only the water pressure from your well or from the city to operate. The water coming from the system is then directed to a standard water heater, where your thermostat determines if the water is already hot enough for use or if additional heat is needed.

You can also install low flow shower heads and aerators on all your faucets. This is not only cost-effective but it also helps you conserve water and the need for hot water as well. The time of day when you shower or use water can also greatly affect how far you can stretch your solar heated water, so it is best that you are aware of these factors to get more out of your system.

Ranging in price from $800 to $1500, passive hot water systems are among the most convenient ways to incorporate solar designs into your home. And because they are so simple, most homeowners are able to create their own design, build and install passive hot water systems on their own for not more than $400.

If as a homeowner, you do not want to go on a project without professional aid, there are a many instructional videos online, blueprints and other materials readily available to the home handyman.

You can also hire a competent contractor to do the work for you to reduce the hassle. If ever you decide to choose this option, always seek for a friend’s advice or recommendations and never fail to ask potential contractors about their experience with installing the type of system you want for your home.

Always remember that all permits should be purchased and local plumbing codes should be followed whether you build the system yourself or purchase a passive system.

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How do you find out if your cavity walls are unfilled?

Chances are, they already are insulated if your house was built in the last ten years or so ago. Here are some ways you can find out:

• Ask for a boroscope inspection to be performed by a registered installer. To see if your walls are filled or hollow, they will drill a small hole on your outside wall.
• You can also check with your local authority’s building control department as they would have information if your cavity walls have already been filled.

How do you determine if cavity wall insulation is ideal for your home?

These are the main characteristics for a home suited for cavity wall insulation:

• Its outside walls are unfilled cavity walls.
• The width of your cavity is no less than 50mm.
• Brickwork is still intact or in good condition.
• The walls are not directly exposed to driving rain.

Benefits of Cavity Wall Insulation

The process of installing foam on the cavity walls is simple. A hole is drilled in the external wall and the foam is pumped into the cavity or the gap. It is a relatively fast process and the energy savings you will make on heating costs give a small payback time.

Heat normally flows from a warm area into a cold one. Especially during winter, the lower the temperature outside, the faster the heat from your home escapes to the surrounding air.

What cavity insulation does is that it slows down the rate at which the heat escapes by keeping as much heat as possible inside your home for as long as possible.

By filling up the gap between the walls with a material with a lot of material with smaller air pockets in it, such as foam, cavity wall insulation makes it much harder for heat to pass through your walls. These pockets are more efficient at decreasing heat transfer through convection than the larger air cavity was. It is virtually impossible for large convection currents to be set up because of this.

Heat transfer by convection is reduced by making the air pockets really small which in turn reduces the size of convection currents.

Heat transfer by conduction is kept to a minimum as that of cavity walls because the plastic foam is a good insulator-just the same as how dry air is.

However filling your home’s cavity walls is not an easy job that you can do yourself. It would be best to find a registered and professional installer. A professional can finish the job in no more than two hours granting you have readily accessible walls. It should be simple and quick without any mess.

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Around the world, the future is bright for using renewable energy resources, especially in a fast changing ecosystem. Utilizing renewable resources can not only supply electricity with unlimited and free resources, but it also helps to create local employment. Not to mention that it is very beneficial for our planet.

Local governments, electric suppliers and people like you who prefer to pursue a sustainable energy future now will be the pioneers in offering experience and know-how for assisting in meeting our world’s increasing energy needs in the 21^st century.

Photovoltaics is a process where sunlight produces electricity. The word photo means to light and voltaic means voltage. In full sunlight, a thin silicon cell which is four inches across can generate approximately one watt of direct current electric power. Nowadays, especially in Texas, USA, homeowners build solar powered homes, water pumps and calculators, which are just a few examples of how Photovoltaics can be used in action.

Solar Photovoltaic Panels are widely used solution for people interested in taking advantage of the sun’s energy. They are also best in producing a source of electricity in remote areas where electricity supplies currently do not exist, beside the fact that it is the ideal solution for producing renewable energy at home or at work. A perfect example of using solar power to generate electricity in remote areas can be found in space for many years now. Satellites use solar panels to catch the rays of the sun and provide power to equipment on board.

You can install photovoltaic panels as single devices or as part of an “array”. The huge benefit of installing solar PV panels in an array is the capability to produce more electricity from one system rather than installing a complete separate solar PV system for each panel used. Because of the augmenting efficacy of solar energy technologies, homeowners or business owners are able to install devices that have been proven to pay off over the years of operation, and most of the time generates a return of investment because of decreased electricity bills or even an income from selling excess electricity back to the grid.

Although it is likely for a household to get its entire power requirement from solar panels, this is an unlikely target most of the time. The expenses involved with installing a solar energy system that is capable of producing energy for a whole house would be drastically high for most homeowners.

Installing a solar electricity system is still a practical option to provide a great deal of amount of electricity helping to decrease electricity bills over the time of operation for a home or business.

Using submersible electric water pumps that are powered by photovoltaic modules are good for small to medium scale pumping needs of not higher than 2 horsepower. Because of their simplicity, lack of movable parts and longevity, these devices are slowly on the rise in popularity. There are also solar or wind hybrid pumping systems that are available.

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There are three most commonly materials used in cavity wall insulation: mineral wool, formaldehyde foam, and expanded polystyrene beads. Each of these have its own slight differences and relative advantages and disadvantages that you should evaluate on a case to case basis.

All of the three types have identical characteristics in general. Most homeowners give primary importance for the R value or the insulating performance when deciding at the different options of materials to use. In the case of cavity wall insulation, however, you must first of all consider water retention and fire resistance as well as the quality of air indoors for your home. This is the reason why these three materials are used more often in concurrence with cavity walls.

Mineral wool or Rockwool

This is the material which is used commonly for insulation in residential properties. It is produced from an igneous rock which is heated and spun to create fiber material. This is blown into the cavity wall which then occupies the space between the interior and exterior walls of the building entirely. The material also is water resistant and prevents moisture driven by rain which usually gets though the outer leaf of the wall to reach the inside leaf of the building.

Polystyrene Bead

Expanded Polystyrene Beads or EPS beads are utilized in the  of cavity walls. These are pushed into the cavity of the walls, which is mixed with an adhesive which sticks the beads together to avoid being spilled outside of the wall. This type of insulation is usually used in narrower cavity walls rather than using mineral wool insulation and is also preferred in some stone built houses or properties.

Cavity Foam Insulation

Urea formaldehyde foam was commonly used for the insulation of cavity walls. They usually have the benefit of needing smaller hole sizes to be drilled in the brickwork or the walls. However, not many people use this nowadays. Most people prefer Polyurethane foam as both a cavity insulation material and a material to stabilize the wall structure where the wall ties have been futile, as an option to replacing the wall tie itself. However, where work is done purely for thermal insulation purposes only, either mineral wool or polystyrene beads are the ones normally used.

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The sun produces about 1,000 Watts per square meter that reaches the earth at noon on a clear day. This is just like having a 100 Watt light bulb completely focused on a surface of a big notebook. Most of the time, capturing solar energy requires buying expensive equipment. But because renewable resources are free, the amount you spend using them is equivalent to, and sometimes cheaper than using other energy resources such as fossil fuels. In terms of environmental costs, renewable energy resources are much more affordable compared to conventional energy sources.

You can also use solar energy to heat your home. Your home’s heating needs can be met with solar energy by simply having proper orientation on an east-west axis and with the use of proper window glazing and shading. In the same respect, most residential hot water needs can be satisfied by using a simple solar water heating system.

Solar Water Heating Systems

The heat from the sun is easily absorbed by water. To heat water, a solar collector, which is usually placed on the roof, is used in a passive solar water heater. Then, convection, a process which is a natural movement of the heated water, transfers it into the water tank in your home. A passive solar water heating system may be able to supply as much as fifty percent or more of your household’s daily hot water needs.

Solar Cookers

Solar cookers have a very simple principle. It works by concentrating the powerful rays of the sun through one or two layers of glass onto food that is placed in an insulated box. Another way is using a dark-colored cooking pot with a glass lid. The only disadvantage would be that it would take a longer period of time before your food will be cooked.

Energy Saving Toys

Most toys nowadays require batteries or electricity for them to work. Encourage your kids to go for the more environment-friendly ones. Look for solar powered toys like race cars and speed boats. You can also have them try manual toys for which they supply the power. You can also use a solar recharger to charge reusable batteries for battery operated toys. This can also give you the chance to educate your kids early on about protecting the environment by taking advantage of renewable energy resources like solar power.

Energy Saving Tools

Mowing the lawn can be more fun and good for the environment, not to mention a good exercise, if you choose to use a manual push mower instead of a gasoline powered one. Manual mowers, trimmer and rakes do not consume fuel energy sources and cost less to purchase, operate and maintain. Solar rechargeable flashlights and also lanterns, water purifiers and portable solar showers are also some of the best tools you can utilize.

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Homeownership ideas

There are a number of schemes available for first-time home buyers in England. You can choose to either go with a shared ownership where you purchase a share of the home and pay rent on the remaining share or have an equity loan towards the house’s purchase price without fees for five years. These are called HomeBuy schemes. These schemes are offered to households which earn a maximum of £60,000 or less annually. For first-time buyers in the UK, FirstBuy Schemes are also available. These are also offered to households with an income below £60,000 annually.

First Time Buyer Incentives

Developers are definitely taking it to the next level by covering everything from the deposit and mortgage. Inexpensive starter homes and first time buyer incentives are just run-of-the-mill. Now, they offer all kinds of rent-now-buy-later schemes and others even food vouchers!

First time buyers nowadays have a lot of good deals to choose from, what with developers assisting in decreasing the financial burden of buying a new home. The most important thing is being smart about what kind of repayments you can afford to make per month.

Suggest An Offer

If the property is heavily overpriced considering the market today, then all homeownership schemes, affordable mortgage deals and incentives will not matter. Knowing that developers are also eager to sell their property will assure you that there are still, in fact, good deals around the corner. Be cautious of where you purchase property as well. If the particular development isn’t really a hotspot, try to assess why.

Auction Purchasing

Purchasing a house at an auction may seem like a very complicated task for a first-time buyer. However this is a good opportunity for you to spot a sweet bargain. Having someone who knows how the system works is a great advantage as the process of buying at an auction is entirely different, so do your research as well.

Property auctions also have a faster process which is good for first-time buyers who want to move in right away. Most of the time you can also buy a property for below the market value so it can definitely be a good bargain.

But always remember that repossessed properties that are usually sold at auctions may need some repair and care. They might not always be the best bargain as they may seem. There could be a chance that the previous owner may have tried selling the property themselves at first but were unsuccessful.

As a first-time buyer, you will need all the incentives and help you can get either on a practical or financial standpoint when purchasing your first home. The key is keeping yourself updated in today’s market and doing your homework on options that are available to you.

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The efficiency of heat pumps to operate decreases as the temperature difference between indoors and outdoors increases. This is the main reason why heat pumps are not very effective in very cold climates and usually include electric heating elements whenever the time arises that it isn’t able to accommodate the load.

The second most common problem with heat pumps is that, it gets cold on its outside coils when heating, to the point where sometimes ice actually forms there. Because of this, heat pumps generally provide defrost cycles, switching into a cooling mode that warms the outside coils and melts the ice. And of course, this in turn decreases the heating efficiency, although these are minor difficulties. Heat pumps are still considered more efficient compared to electric heating.

Ground Coupling

There are some heat pump designs that address the problems mentioned above. These designs are called “ground-coupled”. They work by exchanging heat with the ground instead of the outside air.

During cold days, the ground is generally much warmer then the air, and on hot days the ground is generally cooler than the air. Because of this, ground-coupled heat pumps should be on average operating more efficiently than air coupled ones.

Other terms for ground-coupled heat pumps are ground-source heat pumps, earth-coupled heat pumps, and geothermal heat pumps although they do not really make use of geothermal heat in a strict sense. Instead of their coils exchanging heat with air, they exchange heat with either a body of water like rivers or lakes, which is called water-source heat pump. They also exchange heat with the earth through a bored straight hole or a horizontal trenching within the ground.

Advantages

A heat pump usually uses below half the energy needed by an electric resistance furnace, so it doesn’t just save money but also decreases emissions from fossil fuel power plants.

Its performance can also beat the performance of directly burning natural gas in terms of emissions and fossil fuel consumption.

Ground coupling also adds another level of efficiency when compared to standard air source heat pumps. In fact, manufacturers of ground source heat pumps claim that there is a yearly heating cost reduction of up to 50% and a yearly air conditioning cost reduction of up to 25%. The total amount actually saved depends on several factors like locate climate and particular installation.

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Here are some easy benchmarks to ensure these ideas are incorporated to your home or commercial building:

• To avoid after-the-fact fixes such as solar screens, promote and encourage designs that shade the structure.
• To lessen the impact of the afternoon sun, encourage design “buffers on west walls such as garages or closets. It could be as easy as flipping the distance from the ground so the garage is on the west side.
• Make use of the thermal mass characteristics of tile and finished concrete floors by reducing carpet area.
• Optimize the ratio of the window to the wall.
• Make sure that the window placement promotes flow-through ventilation, both from prevailing breezes, and by low and high windows which draw air towards the house.
• Insulation levels should be optimized.
• Appliances that are highly efficient should be encouraged or installed.
• Lessen electrical needs.
• By water conservation, reduce hot water needs.

A home or building that utilizes renewable energy should most of all be energy efficient. Well-thought energy plans will have little or no effect if a house or building is not well insulated. Installing a minimum of R-30 in the ceiling and R-13 in the walls would be ideal.

Other comparatively cost-effective measures such as radiant barriers, high performance windows and proper duct sealing will also make a home more livable and energy efficient.

Besides the fact that it’s free, the sun provides the best type of light. But despite these facts, daylighting is almost never discussed when talking about energy needs in the home. Well oriented windows that provide for indirect light reduces the amount of electricity required for general and task lighting.
Innovations continue to develop such as roofing material made of PV cells, but more cost effective options with the inclusion of solar-powered gate openers, outdoor lighting and water pumps can still be a trend for a short period of time.

In areas with climates with both heating and cooling seasons, selecting windows with both low U-values and low solar heat gain coefficiency is important.

Appliances that consumer huge amounts of energy are particularly the refrigerator, washer and dryer, microwave etc. Choose horizontal-axis washing machines that save water and the amount of energy to heat it. When shopping for an appliance, always make sure you choose to purchase ones that have the ENERGY STAR label.

To fully appreciate and reap the benefits of building an energy efficient home and commercial space, it is essential that you also have energy efficient equipment, employ energy efficient designs, support and make use of systems that utilize renewable energy sources.

Renewable resources are unlimited and readily available, unlike fossil fuels. It is a clean energy source that can be used pollution free and allows for local energy independence.

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Here are 5 simple ways:

Self- Produce Energy

Producing your own energy can be relatively simple. All you have to do is install energy generating equipment such as solar panels and small wind turbines in your home. You will find that these types of equipment can be very affordable too.

You can use solar panels for water pumping. Another way of utilizing solar panels is by supplementing your existing utility power by generating a part of your power needs. This in turn allows you to reduce your electric bill.

Solar water heaters are also another useful technology that is heavily underrated. Although these systems do not produce electricity, it decreases the use of gas for heating water. These devices can provide 50-80% of the hot water needs in regular homes and businesses.

Choose Home Designs that are Renewable Energy Ready

In designing your new home, or even when you are just remodeling, paying attention to designs that promote renewable energy can play a huge role. Using passive solar designs take advantage of the sun’s natural capability to provide heating in the house during winter simply by observing proper house orientation and window size. You can add roof overhangs that can be fashioned to keep the sunlight outside during summer season and let it shine through during winter season. You can also take advantage of the design principle of daylighting which is essentially, a design which allows the sun to provide light during the day.

Take Advantage of the Sun and Wind!

You may find that tasks that we’re used to accomplishing with the use of electric or gas power can be done by using readily available renewable energy. For example, the simple activities of hanging our clothes to dry outside, solar cooking or even by using the sun’s heat to make coffee can already decrease our dependence on using electricity and other gas or coal energy.

Support Green Power

When choosing electricity providers, make sure you go with a provider that gives highest commitment and support to renewable energy. This is also depends if this option is available in your community.

If you are residing in an area where you do not have other options for electricity providers, you can still purchase a green power alternative from your current provider. Most utilities usually provide more choices to their consumers. You can ask your electric provider if they offer or will be offering a green power alternative.

Create an Energy Efficient Home

Perhaps the most essential benefit of renewable energy is producing electricity with virtually no pollution at all. Pollution is also minimized when we conserve our own energy requirements by utilizing renewable energy or building energy renewable-ready homes. Simple ways of conserving energy are turning off the lights when a room is not in use and also using programmable thermostats. This way, your home will not be automatically cooled or heated when you’re not present.

There are still a number of other ways to utilize renewable energy. As long as the principle is there, we can work together towards a more productive and pollution-free environment. A little always goes a long way.

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The problem with fossil fuels is that it has an adverse effect on the environment. The harmful effects of fossil fuels and the presence of global warming are sadly interrelated. Global warming can gravely affect the human and animal’s lifestyles and even changes in weather patterns which include hurricanes, heat waves and droughts.

There are numerous benefits of using renewable energy which include reduced carbon footprint production. It is for this reason that many people are now utilizing geothermal, solar, and wind energies as alternative sources. It is also considered sustainable, so it has the ability to supply for your energy needs today and in the days and years to come without damaging the environment and the health of humans.

Another advantage of renewable energy for homes is that you have the full support of the government, and they are in fact providing some attractive economical scheme such as tax credits and other incentive programs to residents who opt to go green. Federal taxes are offered in many states for people who would like to use solar power in their homes. This is also applicable to both residential and commercial properties and comprises 30% of the solar power system.

Producing your own energy

To utilize renewable energy, one must install renewable energy-generating equipment such as small wind turbines or solar panels. They are relatively affordable, particularly in rural areas where residents are left with the option to extend the long electric distribution lines to supply the house or another small load. In Texas, USA, ranchers install solar panels to pump water in an economical manner. In this way, residents can lessen their electric bills by producing a fraction of their individual power needs.

Renewal Energy Planning

When constructing a new home or renovating it, you should take a closer look at details like passive solar designs, which actually take advantage of the sun’s ability to warm up the house during winter season through a basic house orientation, suitable window size, roof overhangs (designed to keep out the sunlight during summer), daylighting (using the sunlight to provide for most of the house’s lighting requirements during the day) and other design considerations.

Choose Eco-Friendly Sources

If you reside in a community with several options of electricity providers, you must select a provider that underscores their commitment to renewable energy. In some states in the US, they are required to reveal information about how they generate energy through a content label, which pretty much works like the nutrition food labels in food products. You can use these content labels to analyze each company’s energy power s and how it fare well with their competitors. If you don’t have other choices of electricity supplier, you can inquire from your electric company if they offer a green power alternative.

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