Most people don’t know that there are three different types of solar water heater collectors. While they all depend on the sun’s thermal energy to generate heat, each differs in operation or functionality.

Evacuated tube collectors
Evacuated tube collectors are typically considered the most efficient solar collectors available. Think of each evacuated tube as a kind of thermos. Each glass or metal tube containing water or heat transfer fluid is guarded by a larger glass tube. The space between them functions as a vacuum responsible for minimizing the amount of heat lost. 

The most significant benefit to evacuated tube collectors is that they are able to operate well on overcast days and in cold climates. The catch is that evacuated tube collectors can run a costly bill, totaling about twice as much per square foot as flat plate collectors.

Batch collectors
Batch collector solar water heaters are also commonly referred to as Integrated Collector-Storage (ICS) systems.  These systems heat the water inside dark tanks or tubes that are housed within an insulated box. The water is warmed and stored until drawn. 
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Batch collector systems are capable of keeping a preserve of water for long periods of time if household hot water demand is low. It is important to note that batch collectors are incompatible with closed-loop circulation systems, making them ill-fit for households in colder climates.

Flat-plate collectors
Flat-plate collectors are typically constructed using copper tubes fixed to flat absorber plates. The most common flat-plate configurations feature an assembly of parallel tubes soldered together at each end by two pipes. The goal of the architecture is to maximize the amount of solar radiation captured. The vast majority of flat plate collectors are sized to contain 40 gallons of water.

Is a solar-powered water heater right for me?

If you’re in the market for a water heater upgrade, choosing a solar-powered system is a great option worth pursuing if reducing your carbon footprint is a top priority. Do your research to find the best system that suits your expectations and demands, asking the three questions below before beginning your hunt:

1. Where do you live?
2. What is your budget?
3. How much hot water will you need?

Ultimately, determining if a solar water heating system is right for you will take careful consideration of the following factors:

• How much sunlight your property receives
• Your hot water demand
• Your preferred solar heating system type
• Your chosen installer’s preferred manufacturer

For more info contact Ariston Solar Water Heater or call us at +971 4 252 2966

While you’re planning your green remodeling project, direct the majority of your budget toward simple but lasting property upgrades that meet Energy Star guidelines. If you have room left over in your green remodeling renovation budget, then you can invest in major projects you feel passionate about, like solar panels, greywater irrigation, and other eco-friendly updates.

1. Choose Energy-Efficient Insulation
The majority of American homes aren’t insulated properly for their climate—which means you could be losing hundreds of dollars per month on heating and cooling bills. If your house is more than 20 years old, one of the best green remodeling options to consider is upgrading to eco-friendly insulation. Loose-fill insulation made from recycled paper will stop up air leaks and prevent heat from escaping your house in winter.

Live in a cold climate?
Consider devoting some of your green remodeling budget to air sealing, too. In addition to attic air sealing, [insulation] helps prevent the build-up of ice dams during the cold months, according to EnergyStar 
Want to learn how to heat- and cold-proof your home? Start here for more eco-friendly insulation ideas.

2. Upgrade HVACs and Heat Pumps
Without the proper HVAC (heating, ventilation, and air conditioning) system, even small homes can become inefficient quickly. If your current HVAC system is more than 10 years old, consider designating some of your green remodeling budget to an upgrade. Not only can you save anywhere from 30 to 40 percent on your yearly heating bill with an Energy Star-recommended HVAC system, but you can also rest assured knowing that your home is more eco-friendly than ever.

Expecting a tough winter?
Don’t discount investing in a new heat pump. Today’s versions are more energy-efficient than their predecessors, and they work well even in colder climates. “Even at 5 degrees, these technologies will still produce two to three units of heat for every one unit of electricity they use,” explained Andy Belden, the senior director of the Massachusetts Clean Energy Center, to The Boston Globe. “[They’re] still highly efficient, even at some of the lowest temperatures we see in New England.”

Not sure where to start when it comes to upgrading your outdated HVAC system? Learn how one Ygrene customer went from an ancient evaporative cooler to an efficient mini-split system—and saved big on energy costs—here.

3. Install Energy Star-Certified Windows
If you have an older home with single-pane glass windows, it’s time to divert your green remodeling budget to updating your home’s windows. Energy Star-certified insulated glass panels can save you as much as $400 per year if you live in a cold climate. But it’s a smart update even if you depend on A/C to keep cool in the summer—insulated windows help keep cool air in, too.
Replacing all the windows in your home can be expensive, especially if your green remodeling plan includes pricier building materials for window frames. Homeowners should expect to pay anywhere between $450 to $1,000 per window. While it may take some years before you start recouping costs in energy savings, you can expect the savings in your first one to two years to equal the amount of a single window upgrade.

4. Update Your Appliances
No matter how ambitious your green remodeling plans might be, one of the single best strategies for making your home more energy efficient is to upgrade your appliances, says the DOE. According to David Webber, a green architect based in Austin, Texas, it’s often worth updating energy-efficient necessities, such as appliances, first.
Newer washing machine and dishwasher models often have eco-friendly settings that use less water. Energy Star-certified air conditioners are 20 percent more efficient today than they were in 2001, while water boilers more than 15 years old could be up to 15 percent more inefficient than their modern-day replacements. Likewise, an energy-efficient refrigerator could save you as much as 15 percent on your utility costs.

For more info contact Ariston Solar Water heater or call us at +971 4 252 2966

We are blessed with Solar Energy in abundance at no cost. The solar radiation incident on the surface of the earth can be conveniently utilized for the benefit of human society. One of the popular devices that utilize the solar energy is solar hot water system (SHWS). Solar water heating system is a device that uses solar energy to heat water for domestic, commercial, and industrial needs.

Working of a solar water heater
The system is generally installed on the roof or open ground, with the collectors are glazed on the sun facing side to allow solar radiation to come and connected to a continuous water supply. A black absorbing surface (absorber) inside the flat plate collectors absorbs solar radiation and transfers the energy to water flowing through it. Heated water is collected in the tank which is insulated to prevent heat loss. Circulation of water from the tank through the collectors and back to the tank continues automatically due to density difference between hot and cold water (thermosyphon effect).Water flows through the tubes, absorbs solar heat and becomes hot. The heated water is stored in a tank for further use. The water stored in the tank remains hot overnight as the storage tank is insulated and heat losses are small.

Parts of the Solar Water Heater System
A solar water heater system consists of a solar collector, a storage tank kept at a height behind the collector, and pipelines. The collector usually comprises copper tubes welded to copper sheets (both coated with a highly absorbing black coating) with a toughened glass sheet on top and insulating material at the back. The entire assembly is placed in a flat box.

Storage Tanks
Most solar water heaters require a well-insulated storage tank. Solar storage tanks have an additional outlet and inlet connected to and from the collector. In two-tank systems, the solar water heater preheats water before it enters the conventional water heater. In one-tank systems, the back-up heater is combined with the solar storage in one tank.

Solar Collectors
Three types of solar collectors are used for residential applications:

Flat-plate collector: It is the heart of a solar water heating system. It consists of an absorber plate which is coated on its sun facing surface with an absorbent coating, also called selective coating. The absorber consists of a grid of metallic tubes and sheets. Water flows through the tubes. Sheet absorbs the solar radiation falling on it and transfers it to water. The absorber plate is placed in a top open box to protect it from weather. The space between back and sides of the absorber and the box is filled with insulation to reduce heat losses. The front of the box is covered with a high transmittance glass plate. Flat plate collectors are the most common type used in the domestic solar water heating systems in India as they are relatively cheaper when compared to others.
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Glazed flat-plate: collectors are insulated, weatherproofed boxes that contain a dark absorber plate under one or more glass or plastic (polymer) covers. Unglazed flat-plate collectors typically used for solar pool heating — have a dark absorber plate, made of metal or polymer, without a cover or enclosure.

Integral collector-storage systems: Also known as ICS or batch systems, they feature one or more black tanks or tubes in an insulated, glazed box. Cold water first passes through the solar collector, which preheats the water. The water then continues on to the conventional backup water heater, providing a reliable source of hot water. They should be installed only in mild-freeze climates because the outdoor pipes could freeze in severe, cold weather.
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Evacuated-tube solar collectors: Evacuated Tube Collector is made of parallel rows of transparent borosilicate glass tubes evacuated for providing insulation. Each tube contains a glass outer tube and metal absorber tube attached to a fin. The fin’s coating helps absorption of solar radiation and transfers the heat to the water which flows through the inner tube.

For more info contact Ariston Solar Water Heater or call us at +971 4 252 2966

When deciding to purchase solar panels you need to consider the maintenance requirements of the panels. Maintenance is the key to sustaining a strong, properly functioning, efficient, and effective structure. Insufficient care for solar panels can reduce the amount of energy generated by the panels .Since a solar panel system needs to absorb energy from the sun; the most vital component of solar panel care is to keep the panels clean. It is important to know about the solar panel maintenance needed to do to keep panels working well for years to come. Also consider the warranty offered on solar panels. A strong warranty can allow enjoy to peace of mind after solar panel installation, as knowing the investment is protected.

Generally Solar panels require very little maintenance. They are very durable and should last around 25–30 years with no maintenance. As there are no moving parts for solar panels very little maintenance is needed. Wash them clean of dirt and dust two to four times a year. Watch out for leaves or snow falling on the panels so you can clear them away as quickly as possible.

There are a few ways you can clean the panels. The first and easiest way is to rinse of dust with a standard garden hose. If the panels seem to need a little more cleaning than the hose offers, a soft, spongy squeegee on a long can be used, along with some soapy water. Then use the hose to rinse off any excess suds. If the panels are too high to reach without climbing up a ladder, it may be best to leave the cleaning for the professionals. Local solar panel cleaners are in abundance. The basic cleaning routine ensures that the sun can shine brightly on the panel, maximizing the amount of light available to turn into electrical power.

For more info contact Ariston solar water heater or call us at +971 4 252 2966

Everyone who are considering eco-friendly solar energy to power their homes are confused about the energy output from solar is sufficient for their needs and is it worth for the money they spend.

In a photovoltaic solar panel, solar cells made up of silicon are linked together and convert sunlight into electricity. When sunlight hits the panel, it absorbs light energy and emits electrons. These electrons are stored in batteries.

The rate of efficiency of different types of photovoltaic solar panels that convert sunlight into electricity does not range much as it depends on the roof space for the panels and how much one can spend. However, monocrystalline panels are more efficient compare to multi/polycrystalline and thin film panels.Thats the reason for why monocrystalline panels are costlier and are most preferable.

Thin film panels are used for generating energy in diffused light, such as in cloudy weather and seasons with poor sunlight penetration. These include amorphous crystalline, CIGS, and CdTe panels. They are least efficient in terms of amount of power generated per square inch but they perform much better in diffused light compared to mono-crystalline panels.

Factors that affect the efficiency of a solar panel
Energy efficiency factors must be carefully considered while designing any solar PV systems to get the best out of efforts and investment. Some factors that affect the efficiency are:

1.Cable Thickness
2.Temperature: Solar cells perform better in cold rather than in hot climate.
3.Shading: Solar panels should be located on a place having no shadows on them because a shadow on even a small part of the panel can have a large effect on the output.
4.Charge Controller and Solar Cell’s IV Characteristics: The voltage varies with light intensity. When the panel is connected to the battery through a simple charge regulator, its voltage will be pulled down to near that of the battery. A basic charge controller prevents damage of batteries by over-charging, by effectively cutting off the current from the solar panels when the battery voltage reaches a certain level.
5.Inverter Efficiency: When the solar PV system is provided for the needs of the AC loads an inverter is needed.Here the efficiency depends on the efficiency of solar inverter.
6.Battery Efficiency: Whenever backup is required batteries are needed for charge storage. Lead acid batteries are most commonly used. The efficiency depends on the battery design and quality of construction.
7.Front surface soiling: Solar cells cannot absorb light when the surface of the solar panels are covered with dirt or pigeon droppings, which doesn’t get washed by the rain. Proper washing and frequent inspection can reduce the problem.

The capacity of a solar panel has a direct impact on its cost. Since Watts are the output of each module in the solar panel, a panel with a 100 Watt rating can generate 100 watt-hours of power each hour.

The Wattage of the solar panel affects its physical size. This means that a 200 watt panel will be about twice as large as a 100 watt one.

The most important factor to consider for a solar panel is the amount of energy in watt-hours it can produce and whether it will be enough to power your devices, charge your batteries, and light your LEDs under ideal conditions.

​For more info contact Ariston solar water heater dubai or call us at +971 4 252 2966

Solar power generation has become as one of the fastest growing renewable sources of electricity. Over other forms of electricity generation, solar power generation has several advantages. Whether an owner of a house, a business or a municipal building — you are at a benefit of installing solar panels.

Discover the list of advantages of installing solar panels- some of them you may already be aware of and some that you may have not considered yet:

Cut down the big electricity bills — A huge amount of money on our electricity bills can be saved by installing solar panel. The lesser power we need to buy from the electricity company, the more solar power generation from our panel takes place, thus helping us cut down on the electricity costs.

Increase home value– Buying a house with solar panels converts into low electricity costs. Solar panels will increase the worth of any property in the market the same as with low property taxes.

Solar is a secure investment — Solar energy is clearly an upward trend. The utility companies are infamous for their unreliable and fluctuating electricity prices. With solar panels and simple math, one can calculate how much electricity will be generated and mostly, the price of solar power generation.

Immense government support — The government supports the solar initiatives immensely. Both residential and commercial solar installations qualify for tax credits, keeping the cost of the solar power generation more affordable. In India Solar is booming and growing at a fast rate.

Doesn’t take up extra space — It is possible to install solar panels on just any type of the roof. This prevents the installation from taking up valuable land space on our property proving to be one of the most efficient forms of energy.

Suitable for all climates — Some countries may boast about more sunny days than other regions for effective solar power generation, but solar panels are effective even in colder degrees.

Renewable energy source — Unlike fossil fuels and natural gas, the sun is an energy source that is renewable. The environment benefits from going solar are worth it as sun is an infinite source of energy and going solar reduces our dependence on the fossil fuels.
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Low Maintenance: Solar panels require very less maintenance.
Multiple Uses of Solar Power: In addition to generating the power to meet everyday needs, solar can also be used in remote areas to heat water and cook, run generators and cars. We already know that rural districts face electricity shortages and solar can come as a great rescue for them.

For more info contact Ariston Solar Water Heater or call us at +971 4 252 2966