What is Solar Water Heater?
A solar water heater is a hot water system that utilizes solar energy (energy from sunlight) to heat water in cost-effective solutions. It fits on a terrace or any open space on the top of the building where it gets sunlight is then used to heat water and store it in an insulated tank. The solar water heater does not connect to the electricity grid; however, used to get the sunlight throughout the day to heat the water, and store it in the storage tank for your home, or any other desired applications.
The solar water heater incorporates high density compressed PUF insulation and an efficient heating element, which is capable of helping it to store hot water up to 48 hours. Therefore, it is best suitable for homes, apartments, hostels, and several other buildings. The solar water heater for home is made up of anti-corrosive material and advanced technology. Some of the features such as energy efficiency, durability, safe to use, and easy installation are the main reasons for which, the solar water heater has acknowledged in the market.
The solar water heater is developed by all standards of quality and safety, thus ensuring safety for use at home. SolarClue is an online platform to buy solar water heater directly from top brands such as Supreme, V Guard, Havells, EMMVEE Solarizer, Racold, and Kamal Solar.
Parts of the Solar Water Heater
A solar water heater consists of a flat plate solar collector, a storage tank (kept at a height behind the collector), and connecting pipes. The collector is comprised of copper tubes welded to copper sheets (both coated with a highly absorbing black coating) with a toughened glass sheet on top, insulating material at the back, and the entire assembly placed in a flat box. There are certain types of solar water heater, where evacuated glass tubes used instead of copper and a separate cover sheet along with an insulating box not required in this case.
Solar Water Heater Working Principle
The solar water heater is installed on the roof of the building, or open ground with the collector, and connected towards facing the sun for continuous water supply. The water flows through the tubes or solar panels are capable of absorbing solar heat to provide hot water. Then the heated water is stored in a tank for further use and the tank covers with a glass lid to prevent the loss of sunlight or heat due to convection and radiation. And, the hot water gets stored in the storage tank remains hot overnight as the tank is insulated. This is all about the working principle of the solar water heater.
The solar water heater price in India is different from several manufacturers and dealers. You can check out the list of prices from the top solar water heater manufacturers at SolarClue and analyze the features of the best solar water heater then select the best one.
Types of Solar Water Heater
There are mostly two types of solar water heaters available on SolarClue.
Flat Plate Collectors System (FPC): It is a typical solar water heating system and known for its longer life. The flat plate collector system is also called a selective coating that consists of an absorber plate and covered on its sun-facing surface with an absorbent coating. The absorber plate is placed in a top open box to protect it from weather and incorporated with a grid of metallic tubes and sheets that allow water to flow. Sheet absorbs the solar radiation falls on it and transfers it to water. The space between both the (front & back) sides of the absorber and the box is filled with insulation to reduce heat losses. Flat plate collectors are stated based on their area, commonly 1x2 m size.
The FPC water heater also can work in colder regions with freezing temperatures, but it needs an anti-freeze solution that makes the system expensive. A heat exchanger with an FPC system is required in those areas with salty water to avoid scale deposition that can impact the heating capability of the system.
Evacuated Tube Collectors System (ETC): This is another type of water heater made up of glass, hence fragile by its nature. It is ideal for colder regions where the temperature is subzero. The places where the water quality is salty, ETC requires regular cleaning due to the deposition of salt on the inner surface of glass tubes.
Each of the evacuated tubes contains a glass outer tube and a metal absorber tube that is attached to a fin. The fin's coating generally absorbs solar energy but prevents radiative heat loss. This particular type of water heating system is used more frequently for U.S. commercial applications as compared to other uses.
Both the types of water heaters are manufactured with, or without a pump, available on SolarClue. The water heater with a pump is used to move water from collectors to the storage tank. The other water heater without a pump is used utilizing the thermosiphon principle to move water from collectors to the storage tank automatically.
Pricing of Solar Water Heater
Pricing of a solar water heater varies from one brand to another as there are several brands available with SolarClue. When it comes to the price of the solar heater, the quality of the product, its durability, and reliability are three important things that do matter for customers. After analyzing such factors, people are only able to find the solar water heater price list from different brands. There are different types of solar water heaters on SolarClue, and according to that cost decides. Individuals who are interested to buy solar water heater can even compare the price as per different manufacturing brands and select the best one which suits their budget.
What is solar panel and how it works?
Solar Panel is also known as Photovoltaic Solar Panel, made using smaller units of silicon. This is called a solar cell, which converts solar energy into electrical energy. Silicon is a semiconductor inserted between conductive layers in a solar cell.
How solar panels work? The process of solar paneling starts during the day time when proper sunlight is there. The sun rays fall on Solar PV Panels that are installed on your rooftop, and photovoltaic refers to the scientific process by which solar energy gets converted into electrical energy.
There are several silicon cells within each PV panel, and these cells react with photons (unit of light), which come from the sun to produce DC (Direct Current) or electricity. The direct current (DC) then travels into an inverter that converts it into AC (Alternating Current), which further used in your home, office, playgrounds and many other places. After this, AC current transfers to the distribution network in your home, which is capable of powering electrical appliances of your house. When Solar Panels produce more electricity than your home is using, the extra electricity gets shifted or stored in the grid. And, you can avail of the benefits for the extra electricity that your solar panels generate. Moreover, solar panels are available in different sizes and price ranges.
Solar Panel Price in India
The solar panel price in India is different from one brand to another. Based on several manufacturers and dealers, the price of the solar panel decided. You can check out the solar panel price list from top solar panel manufacturers at SolarClue and buy the preferred yet best solar panels as per your budget.
Everyone wants to spend their money on buying the product, which is of superior quality. Comprehending this fact, several brands of solar panels on SolarClue have stepped forward in the market with different price lists, based on the products’ reliability and durability.
You can find the solar panel price list from different brands on SolarClue. There are different categories and pricing of solar panels in India available with SolarClue, and according to those classifications customers can choose their items. They also can compare solar panel prices and select the best one which suits their budget.
Working Principle of Solar Panels
Solar Panels work on the principle of the photovoltaic effect, which is a method of producing direct current electricity based on the principle of the photoelectric effect. Photovoltaic directly converts solar energy (sunlight) into electricity. When certain materials expose to sunlight they absorb photons and then release free electrons, and this phenomenon is called the photoelectric effect.
Solar cells or photovoltaic cells are used to convert sunlight into direct current (DC) electricity. Though a single photovoltaic cell does not produce enough amount of electricity, hence several photovoltaic cells are mounted on a supporting frame and electrically connected to form a photovoltaic module or solar panel. The current or electricity that solar panel system provide is dependent on the effectiveness of sun rays.
Types of Solar Panels
Solar Panels are classified into two types such as Monocrystalline Solar Panels and Polycrystalline Solar Panels.
Monocrystalline Solar Panels:
Monocrystalline Solar Panels are made using extremely pure mono (single) silicon crystal that helps in converting solar energy into electricity. Monocrystalline solar panels are suitable for easy installation in smaller areas, which requires a reasonable price. However, the monocrystalline solar panel installation is ideal for a larger area, but it makes it expensive. Users will be able to get the most electricity output according to the monocrystalline panels used.
Polycrystalline Solar Panels:
Polycrystalline solar panels are made using poly (multiple) silicon crystals and known as the most commonly used type due to price and efficiency. The cells used in Polycrystalline are a small amount of quantity that makes the Polycrystalline Solar Panels a bit less efficient. For this reason, users can install a large number of polycrystalline panels to generate electricity to meet their consumption needs. As compared to Monocrystalline Solar Panel, Polycrystalline Solar Panel is considered the commonly used type as they maintain a good balance between pricing and effectiveness.
Difference between Monocrystalline and Polycrystalline Solar Panel
The difference between Monocrystalline and Polycrystalline solar panels is the advanced technology that has made them practically interchangeable. Owing to the manufacturing process and robust technology, Monocrystalline Panels are quite expensive as compare to Polycrystalline Panels. The monocrystalline solar panel comes with black and dark blue color, whereas polycrystalline panel appears in the blue mottled.
Monocrystalline Solar Panels are more efficient than polycrystalline solar panels thus, you can use slightly more power in the same size and space of monocrystalline panels. But polycrystalline panels need more equipment to produce the same amount of electrical energy as monocrystalline. For this reason, the solar panel cost is less for polycrystalline. Interested buyers can purchase any solar panel through online and also by visiting stores.
When it comes to temperature, Monocrystalline panels handle the heat slightly better than polycrystalline solar panels. This temperature difference can be noticeable especially in extremely hot areas such as deserts, as compared to residential regions. Last but not least, monocrystalline can perform in a better way even on hazy skies than polycrystalline panels.
Solar light is a recently advanced lighting technology to produce light by using natural energy coming from the sun. What is solar light? It is a device developed in such a way to store and provide solar energy by using its particular source (sunlight). Solar lights are used in solar panels or photovoltaic cells to collect solar thermal energy and transforms it into lighting.
Information about solar light
Solar lights generally use solar energy (sunlight) during the day time to charge its inbuilt battery, which is capable of running the light during the night. Electricity saving is the first and foremost benefit of solar light or solar charging light as it helps consumers to save their electricity costs. When it comes to electricity-saving, solar lighting systems are the best affordable solutions to avail as they eliminate the costs of trenching and wiring. Solar light prices in India vary from one model to another, and one type to one more.
Solar is the long way to go especially, while the power supply is unavailable, or too expensive. This is the best answer to the question of how the solar system works. Nowadays, solar lights have gathered huge attention even at the national level due to their tremendous attributes. The topmost features of solar lights are environment-friendly, reasonably priced, and energy-efficient. And the availability of a solar light online facility is a very good option for the buyers that allow them to select their desired model just seating at their place instead of visiting the shop.
Application Areas of Solar Lights
Solar lights are considered the first-ever option in providing natural energy that helps in serving varied requirements, be it a back yard, garden area, hospital campus, or a large parking lot. Apart from these, solar charging lights also cater to the necessities of some more application areas, which are as follows:
• Lighting for highways or roadways
• Lighting for parks and playgrounds
• Solar lighting for industrial and commercial purposes
• Outdoor lights for security commitments and many more areas
Types of Solar Lights
Solar lights are categorized into varied types, which include:
• Solar Street Light / Solar Panel Street Light / Solar Street Lighting System
• Solar Garden Light / Led Garden Light / Solar Lamp for Garden
• Solar Lighting System
• Solar Emergency Light
Solar Street Light: Solar street light is ideally used for street lighting in roadways of urban as well as rural areas. The solar street lighting system is controlled by adequate battery storage backup that facilitates to operate the light for 10 to 11 hours a day. The particular system operates by an automatic ON/OFF time switch.
The estimated price for the solar panel street light is around 24,000 rupees. But the solar street light price varies based on its capacity, models, and brands. The solar street lighting system or solar street light consists of a solar photovoltaic module, battery box, lamp post and lamp with charge controller. Moreover, solar street light is popular these days due to its easy installation, eco-friendliness, electricity-saving, and low maintenance cost.
Solar Garden Lights: Solar garden lights or outdoor garden lights are manufactured in such a way to decorate and enhance the ambiance of garden spaces. However, LED garden lights or solar LED garden lights or solar lamps for gardens don’t give good brightness, but they are excellent for enlightening plants in the garden at night. Solar garden lights’ price is affordable that anyone can purchase.
Solar Lighting System: The solar lighting system is an eco-friendly device that runs lights by using batteries charged over the usage of the solar photovoltaic panel. This particular lighting system consists of solar panels, LED lamp, battery, charge controller, and inverter.
Solar Emergency Light: A solar emergency light is a battery-backed lighting device functioned by solar energy and designed in such a way to switch on automatically to provide power supply when a building experiences a power outage. The solar emergency lighting system is battery-operated light and tied into the building’s power grid permanently, which helps to provide light solutions independently by using solar light.
An emergency light is a battery-backed lighting device that switches on automatically when a building experiences a power outage. Moreover, solar emergency lights are ideal in new commercial houses and high occupancy residential buildings, such as college dormitories, apartments, and hotels.
Advantages of Using Solar Lights
There are several benefits of using solar lighting systems or solar lights. Some of them are listed below:
1. Natural Power Supply
Solar lighting is an alternative option of a traditional lighting system using no power at all from the electric grid. The solar lights are completely power-driven by solar energy, hence considered as one of the world’s leading renewable energy technologies. The solar light batteries used in solar lights are recyclable.
2. Environment-Friendly
Solar lights are environment-friendly because they do play an important role to decrease carbon imprint by producing energy from non-renewable energy sources or sunlight. Therefore, solar lights are the best option to decrease the problems caused by the exhaustion of our planet’s resources.
3. Unlimited Source
Solar energy comes to solar light is everlasting. As long as you live in a place where there is more or less sunlight, which means one can use the source of solar thermal energy infinitely. And, in this case, solar lights are the optimum choice to avail lights.
4. Low-Cost Installation
The installation cost of solar lights is very less as compared to others, running in traditional grid power. Because all wiring or cabling placed at the top of the lighting system are useful for the process of installations. Furthermore, solar lights operate through low voltage that keeps the lighting system safe for installation and maintenance.
5. Maintenance Free
The entire solar charging light is maintenance-free as the lifespan of its battery continues five to seven years. And the durability of other components of solar lights lasts up to 30+ years, which are free from maintenance.
6. Zero Electricity Bills
Users can save their electrical power bills once they start utilizing solar lights. However, buyers are required to invest one time while they purchase the solar lighting system.
7. Available in a wide range of styles and patterns
Solar lighting system or solar light is available in numerous styles, types, sizes, shapes, and designs. It is made in such a way to serve functional purposes and aesthetically and visually attractive. There are so many options available in the market now that one can choose any solar light as per his or her requirements.
In addition to these, there are also some other advantages of a solar lighting system. Solar lighting can be installed in environmentally sensitive areas, where network infrastructure or any electrical connections are not accessible. Solar lights are even useful for the situation when power failure caused due to extreme weather events such as storms or cyclones. It is considered the best substitute of the electrical network. Moreover, solar lighting systems due to their sophisticated battery technology can provide shine or light for five days continuously once they get recharged fully with the help of sun rays.
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