How to Choose a Solar Water Heater

Posted by on Jan 23, 2014 in Posts

How to Choose a Solar Water Heater

It is really a satisfying feeling when you do something realizing that it will make the earth a better and greener place to live. Getting a solar water heater installed in your home is a move, which can be considered to be eco-friendly and one that will be cherished throughout your life. Many a times, we may not have the required know-how about how sustainable science works, and how to reduce your carbon footprint. But whatever it may be, we should never hesitate before going for an eco-friendly option if it is available. This will surely do something to make the lives of our children better, and they will thank you for that. This article explains how to choose a solar water heater as per your requirements and budget.   Know how it works   Getting a solar water heater can be a daunting task as initial investments are high. A simple passive type solar water heater consists of a solar collector tank and tubes which are made up of glass. A solar water heater uses the heat radiations of the sun to heat water to an optimum temperature and sends it directly to our taps for use. The simple passive water heater relies on gravity and physics to transfer water from the roof to your taps while the active one has its own pumping arrangements.   Stick to the Principles   All solar water heaters use the same basic principle to heat water with slight modifications. A solar powered water heater can basically be categorized into “Active” and “Passive” systems. The Active system uses storage tanks, electric pumps, and anti-freeze liquid, reflecting mirrors and is more costly than the Passive ones.   The passive system depends upon the natural tendency of hot water to move up the pipes, and the warm water is collected in a tank situated above, they are suitable for most of the houses and demand less structural considerations and cost. In ICS (Integral Collector and Storage) system, water first passes through a storage tank where it gets slightly heated before going into a conventional water heater and acts like an auxiliary water heater.   Climate   As a solar system depends on the sun as their source of power, the climate plays an important factor for installation. Direct circulation systems are well suited for tropical climates, but when there is no sun or where the climate remains on the colder side throughout the year, going for an active solar system is a much more reliable...

Read More »

Government Support to Promote Indian Solar Home Lighting Systems Market

Posted by on Jan 23, 2014 in Posts

Government Support to Promote Indian Solar Home Lighting Systems Market

Solar home lighting systems are used for supporting small loads in households. The rural financial institute promotes and gives priority to solar home lighting. This is a way to provide electricity for the non-electrified and under-electrified in households of most villages. Solar Home lightening systems (SHLSs) have shown its significance of annual growth around 22 percent found by our research report “Indian Solar Energy Market Outlook 2012” during 2012 to 2013. This growth has been achieved by the support of state government and central government. Our research report says that most of the states with an initiation by the Indian government will start promoting solar water heating systems, by offering low tariffs. Various states like Rajasthan, Gujarat, and Delhi etc. have already started promoting solar water heating systems. During the 11th plan period by the Ministry of New and Renewable Energy selected Rajkot as the developed solar city. According to research, many factors will encourage solar powered equipment industry in India and will increase the additional participation in the industry. Analysis has been done by the “Indian Solar Energy Market Outlook 2012” which shows thorough current study of the Indian solar energy market according to state wise growth potential. The research says that the present and future situations and scenarios may occur in the market of Solar thermal and Photovoltaic segments including all other solar products like Solar Water Heating Systems, Street Lighting System, Solar Cookers, Solar Home Lighting Systems, Solar Power Plants, Solar Lanterns, and Photovoltaic Pumps. The developments shown in various states like Rajasthan, Gujarat, Tamil Nadu, West Bengal etc. is provided by the report. The report also provides the detailed information on key players of relevant industry to their...

Read More »

Solar water heaters in India- Understanding the benefits, Cost, Subsidies for buying heaters

Posted by on Jan 23, 2014 in Posts

Solar water heaters in India- Understanding the benefits, Cost, Subsidies for buying heaters

Solar Water Heaters are the one of the solar products which has managed to cut off the government subsidy. Solar power in India has the advantage with the JNNSM subsidy policy promoting by government. The paying back period is too short, and it also replaces the need of electric water heaters used in houses and commercial environments where sometimes they may face a scarcity of electricity supply to their places. The other various reasons for the popularity of solar water heaters are that it can be built easily and can be installed with ease. Here, China has moved a bit towards success in making most installed solar water heater in the world than any other country. India is also not lagging behind and showing its growth towards installing the solar water heaters on the roofs of the households in India. It is gaining popularity in India because of the subsidy available through MNRE for buying solar water heaters. Water heaters are available in the market with various capacities, qualities and at the best prices so that it is affordable for people in India. The installing of whole turnkey consists of solar water heaters; piping systems and maintenance is done by our solar installer. Solar Water Market in India: We have witnessed in the last 4-5 years that growth in the market has been increased from the past 15 years to 20% CAGR due to certain reasons as specified here. Not only there is an increase in growth but also it has acquired a speed in India’s solar water heater market that is around 2.5 million square meters. The 50 percent of the solar water heater that have been installed is found to be in Karnataka and Maharashtra. India has the potential for receiving very high solar radiations which makes it useful for solar water heater.  The solar water heaters are mostly installed by the households, which makes the decline in installations for commercial establishments more than 80%. Commercial establishments are still lagging behind in installing solar water heaters. It is seen that, in India, the growth has reached up to 20%, and around 1 million households have installed solar water heater, which might have cost them at Rs 30000 ($650). You can also be benefited by SWH as it saves fuel and pollution...

Read More »

On rooftops globally- a solar water heating revolution

Posted by on Jan 23, 2014 in Posts

On rooftops globally- a solar water heating revolution

The change of environment and the energy deficiency encourages the harnessing of solar energy. Due to the daily rising cost of fossil fuels, the government feels need to reduce the cost of solar water heater. With the use of solar thermal collectors, they convert natural sunlight into heat to heat up the water. For example, China is a country where 27 million roofs have rooftop solar water heaters. The 4000 companies in China are manufacturing these devices at an affordable rate and with a great technology which has approached villages who have scarcity of electricity yet. For villagers, they provide it at an affordable rate, about $200 so that they get a solar water heater installed on their roof and enjoy hot showers. China has boasted to applying this technology, and they are achieving a great success in their business.  By 2020, Beijing has planned to make the present 114 million square meters of rooftop solar collectors to heat water up to 300 million square meters. The energy required for these installation facilities in China is same as the generation of electricity by 49 coal-fired power plants. Not so far where even in developing countries India and Brazil may also see that millions of households will be using this inexpensive water heating technology. This just would appear in villages just as it appeared when cell phones replaced the use of traditional telephone lines. The initial cost seems may be quite high, but after the installation you will enjoy free life long hot water whenever necessary. Since the energy costs are costly in Europe, this rooftop technology is spreading wide in that country. Even in Austria about 15 percent households have installed rooftop solar water heater to get hot water. As in China, almost all the villages of Austria have installed this rooftop collector. Germany is also not lagging behind. As China and European Union have achieved their goals, Japan and United States are also finding new technologies with their recent projects which may heat up a total of 1,180 million square meters of space and water heating capacity by...

Read More »

India: Financing solar water heaters

Posted by on Jan 23, 2014 in Posts

India: Financing solar water heaters

How interest rate subsidies are beneficial than capital subsidies The cost of electricity and fuels are increasing day by day as they are non-renewable sources of energy, and it is not prudent to use this energy to heat water for our use. There is an alternate way by which we can get hot water without incurring any cost. By installing solar water heaters at home, a person can save his money, which was going to be spent on other expensive energy resources. Solar water heaters utilize solar energy to heat water presented in the tank and hence; it is free of cost. In most of the homes located in cities, solar water heaters are installed. It is made possible due to low cost financing which is given by the commercial banks. Ministry of Non-Conventional Energy Sources (MNES) provides regular interest rates. If we take an example of Canara bank, which is headquartered in Bangalore, it provides loans up to two percent for a person whereas, it increases up to three and five percent for institutions and commercial entities respectively. On a whole, a commercial bank can finance up to 85 percent of the project cost. During earlier days of 1990s, there were very few numbers of solar water system manufacturers. The subsidies were guided and kept under MNES supervision all over the country. For example, there were less than six manufacturers of solar water system. To increase the production, the interest subsidy enticed many commercial banks to pass loans and finance for a solar water heating system, which lead to the increment and development of many other solar water heater manufacturers. Due to this there were more than sixty manufacturers of solar water systems in Karnataka alone. The solar water systems which are manufactured should be collaborating with the financial institutions so that the systems get qualified for general purposes. If the system is not performing as well, there can be non payment of the loan which leads to the rejection of the supplier. Due to the availability of the financial programs solar water heaters are installed in various places where there is a need of hot water like a house, hospitals, sugar mills, food processing units, milk processing plants etc. Such changes should be done in the society and utilization of renewable sources of energy must be increased. We can use other technologies as well to conserve energy like solar photovoltaic, biogas, wind and tidal...

Read More »