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 does mean by Off-Grid Solar Power System?
Off-Grid Solar System is a type of solar power system run by generating electricity from solar panels and using it to charge a solar battery through a charging controller. That electricity is then adapted using an inverter, which helps to power the home appliances or business’ equipment. The off-grid solar system is not connected in any way to your grid’s power system, hence, providing 100% self-sustaining energy for your usage.
Off-grid solar power systems (entirely self-sustaining) allow you to store and save your solar power or natural energy in batteries for future use, especially when the power grid goes down. The foremost advantage of using the off-grid solar system for home is to run household applications with solar energy during night or anytime when there is less sun exposure and only by saving the electricity in a solar battery.
The solar power system is also known as a stand-alone power system and acknowledged in the market due to several reasons like cheapest price than extending power lines in certain remote areas, 100% independence from electricity retailers, and 100% insured against rising energy prices.
On the other hand, the off-grid solar system for home uses as an appropriate alternative in the remote areas where the grid is unavailable for power supply. SolarClue is an online platform where people can buy a solar power system (Off-grid) on different brands like Supreme, V-Guard, Varistor Solar, and Luminous. The solar system price is varied from one brand to another available with SolarClue.
Components of an Off-Grid Solar Power System
Total of five components used in off-grid solar power system, which are as follows:
Solar Panel – It is one of the important elements of the off-grid solar power system. The solar panel operates based on by depending on the amount of available sunlight in the region, the usable space of roof, and energy consumption needs.
Solar Battery – It is another component of the off-grid solar system and useful to allow the home to continue to run after the sun goes down. Solar battery or solar storage device is responsible for charging the home appliances throughout the day as solar panels generate excess electricity. This is capable of storing solar power for later use of running the household appliances.
Solar Inverter - Solar power system prerequisites a solar inverter to convert the direct current (DC) collected by the solar panel into the alternating current (AC) that enables to run the household appliances and electronics. A stand-alone inverter is an ideal option for off-grid system use. Solar inverters are referred to as a solar converter or a PV inverter.
Solar Charge Controller - The solar charge controller is necessary to save battery backup for operating the different household electronic products. The controller is used in regulating the voltage that solar battery receives, to prevent overcharging, and any damage.
Off-Grid Generator System - It is considered an alternative source of energy as a backup of the system. This is the main requirement during the pick winters when solar production is at its lowest. Off-grid generator systems are also useful to power a home’s electricity needs.
Advantages of Off-Grid Solar System
• Easy installation and helps in keeping the environment clean and green
• Works independently and does not rely on the grid as power outages can occur without any warning
• Facilitates in generating enough power that can be stored and used at night or when the power grid is down
• Useful for remote areas where there is no power access from the grid
• Grid failures and shutdowns do not affect your power supply
• Helps in reducing electricity costs
Application Areas of Off-grid Solar Power Systems
Rural and remote areas - Off-grid solar system offers electricity supply in rural and remote areas with the facilities of long-term and sustainable power generation.
In areas with frequent electricity cuts – Off-grid system provides power back up facilities to those areas, which are facing frequent power cuts due to power transmission malfunctions.
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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