Installing Solar Water Heater for Home – Information and Costing

Solar Water Heater

Recently we installed 150 Litre Solar Water Heaters at our terrace. Below are the Information, photos and costing for Installation of Solar Water Heater.

When you decides to install solar water heater, you need to consider following factors,

  • How many people are there in your home who will be using hot water ?
    • Based on this the number of Liter water required needs to be finalized. Lets say, you have 3 people at your home and each one will use average 50 Ltr of hot water each day, then you will need to purchase 50*3 = 150 Ltr solar water heater.
  • What is your budget for purchasing new solar water heater ?
    • As you might already be aware, solar products needs somewhat more initial investment, so you needs to enquire different brands available in market and compare their pricing and features for same model of solar water heater.
  • What is the warranty of the solar water heater and how you will contact them in future for servicing ?
    • Most of the solar water heaters are long durable, and comes warranty of 5-7 years. So you needs to get proper warranty information and how they will provide the service for future in case some issues. Once installed, the most common issue you might face is due to hardened water. But if you are ready to get solar water heater serviced once in one / two year then no issues.

The common pricing for installing solar water heater will include following things,

  • Solar Water Heater Price + Tax
  • Transportation Cost
    • If you have agreed to pay for transportation cost of solar water heater ( tank + pipe etc ) from company to your home, then we need to account this cost.
  • Plumbing Material and Service cost
    • This will be an additional cost which includes purchasing all the pipes ( hot water pipe, cold water pipe ), valves etc and payment of plumber services. If your current cold water tank is at same surface level where are going to install water heater, then there will be additional cost to increase height of cold water tank, so that daily transmission of cold water to solar water heater and hot water from water heater to your bathroom tap can be automated without daily efforts required to fill solar water heater tank.
150 Litre Water Tank with Stainless Still Inside and Puffing material between stainless still and outside plastic to prevent heat flow to outside.
Socket to connect Glass Tubes with Stainless steel Tank
Socket for Cold Water Inlet to Water Tank
Other side Socket for Hot Water Outlet
Glass Tube Specifications
Solar Water Heater Frame where Water Tank gets installed and on slider Glass tubes resides.
Plumbing Material ( Pipes are not in Photo )
Frame After Water Tank is placed on Top Surface.
Frame End towards ground where end of Glass Tube is held.
This is how Final Installation Looks Like 🙂

Refer to “Guidelines for installation of Solar Water Heating Systems in high rise buildings and multi storied flats” Issued by MNRE down-loadable from LINK.

The Solar Power Tree – An Intervention by Indian Scientist aimed at Utilizing Minimum Land to Harness Maximum Solar Energy

solar_tree

CSIR-CMERI,Central Mechanical Engineering Research Institute (CSIR-CMERI), Durgapur, West Bengal has designed and developed a “Solar Power Tree” to harness maximum solar energy utilising minimum land – In general, it requires about 3.5 acres of land to produce 1 MW of solar power. For any state in the country to survive on green energy there will be requirement of thousands of acres of land. The acquisition of land is a major issue for private sector industry. Solar Power Tree addresses the biggest hurdle of land requirements to gainfully utilise solar power.

Solar Power Tree is an intervention against land constraints. It harnesses solar energy for producing electricity with an innovative vertical arrangement of solar cells. It thus reduces the requirement of land while keeping the land character intact. It even enables utilisation of the cultivable land for solar energy harnessing along with farming at the same time.

The Salient Features of the Solar Power Tree are:

  • It takes much less land of only 4 sq ft for a 5 kW Solar Power Tree as compared to 400 sq ft of land required in case of the conventional Solar Photovoltaic layout;
  • It holds the panels at a higher height – thus gets more sun (by 1 hour) in a day in comparison to that in conventional layout on ground; Thus, it is possible to harness 10-15% more power;
  • It is facilitated with water sprinkler at the top for self-cleaning of panels;
  • The paddy lands or agro-gardens or roads can be utilized for production of green power keeping land scape/cultivation unaltered;
  • Applicable for both rural and urban areas.

In future, it is possible to harness 10% more power by rotating panel direction twice in a day by using a module that aligns itself with the movement of sun. Also, aesthetic aspects would be incorporated in the design of solar tree to landscape the land.

The Specifications for 5 KW Solar Power TREE are:

  • Peak Power: 5KW;
  • Full Load Capacity: 60% of the Peak;
  • Battery Back Up: 2 hrs. (Full load);
  • Cost: INR 5 Lakh;
  • Footprint: 4 sq. ft.;
  • Arial Span: 25 ft. Dia,
  • Warranty: Panel: 25 Years.

The technology developed under the leadership of Dr. SN Maity, Chief Scientist, CSIRCMERI, has been licensed to: M/s Vibes Solar Solution India LLP, Kolkata. The process is under way to license the technology to more companies.

For further details, please contact: Dr. SN Maity Chief Scientist, CSIR-CMERI e-mail: drsnmaity@yahoo.com

Watch “Solar Power Tree” news covered by “Voice of America”

Reference :  CSIR Press Release

Views of Hillary Clinton, Bernie Sanders, Donald Trump on Renewable Energy / Solar Power

presidential candidates

Hillary Clinton’s views on Renewable ( Solar, Wind ) Energy

  • Create good-paying jobs by making the United States the clean energy superpower of the 21st century.
  • Set national goals to have 500 million solar panels installed; generate enough renewable energy to power every home in America; cut energy waste in homes, schools, and hospitals by a third; and reduce American oil consumption by a third.
  • Lead the world in the fight against climate change by bringing greenhouse gas emissions to 30 percent below what they were in 2005 within the next decade—and keep going.

Promoting clean energy leadership and collaborative stewardship

  1. Fully fund the Environmental Quality Incentives Program (EQIP)
  2. Strengthen the Renewable Fuel Standard
  3. Support the bio-based economy’s dynamic growth
  4. Launch her Clean Energy Challenge

You may read more details about this at hillaryclinton.com and Renewable Power Vision

Bernie Sanders’s views on Renewable ( Solar, Wind ) Energy

As president Bernie will,

  • Work toward a 100 percent clean energy system and create millions of jobs.
  • Invest in clean, sustainable energy sources powered by the sun, wind and Earth’s heat.
  • Invest in advanced renewable fuels and keep our energy dollars at home.
  • Invest in solar energy and put money back in the pockets of consumers. Bernie believes that solar energy is one of the most promising sources of clean energy for America’s future.
  • Invest in making all American homes more energy efficient.
  • Support American workers moving into clean energy jobs.
  • Invest in an affordable energy storage solution that will allow us to fulfill our clean energy needs.
  • Build geothermal power plants to create full time family-wage jobs for operations, engineering, maintenance, and administration.
  • Utility-Scale Clean Energy Generation.
  • Enable greater consumer choice in energy.
  • Begin a moratorium on nuclear power plant license renewals in the United States.
  • Provide global clean energy funding to vulnerable countries.

You may read more information / details about his views on renewable energy at berniesanders.com

Donald Trump’s views on Renewable ( Solar, Wind ) Energy

We tried to find the information on this, but couldn’t find any. The website donaldjtrump.com also doesn’t have the policy document or his views on renewable energy. We could only find one article at “Donald Trump’s Conservative Plan For Energy

Frequently asked questions ( FAQ ) regarding solar

solar

Q. Solar panels are not worth the cost because they don’t work when it’s cloudy or at night. ?

Ans-> Solar power works even in cold or cloudy places, and new tools are allowing us to use it even when the sun goes down!
Because of the way the technology works, solar panels are just as effective—and usually more effective— in cooler temperatures as in hot ones. And while it’s true that clouds can affect the efficiency of solar panels, they can still produce enough power to be viable sources of electricity. Germany, for example, is a country that is not particularly warm or sunny, but is nevertheless the world leader in solar energy, generating more electricity with solar than nuclear power in July 2015.

Reference : climaterealityproject

Q. How Solar Panels Work ?

Ans:

Top 9 Things to Keep in Mind To Ensure You Get the Best Solar Modules When you Install Rooftop Solar – by Mysun

Solar modules are the most important component of your solar PV system since this is where the incident sun rays are captured and converted into electricity. Solar modules also are the biggest contributor to the total cost of your solar system So needless to say, when you decide to go solar, you must pay special attention to picking the best solar modules for your plant. Dwindling cost of solar modules over a period of time has been one of the key contributors to the cost reduction of solar systems. With improved automated manufacturing processes and cut throat competition in the market, the cost drops have been possible both by

Dwindling cost of solar modules over a period of time has been one of the key contributors to the cost reduction of solar systems. With improved automated manufacturing processes and cut throat competition in the market, the cost drops have been possible both by the economy of scale and capacity overhang. However, it goes without saying that one must go for the most cost-effective module while ensuring high quality and generation.

Today, one has the luxury of choosing between several modules makes in the market, right from India manufactured modules to global modules. Making the right choice, therefore, can be daunting. While you can refer to one of the lists widely available on the web such as the Bloomberg Tier 1 Module list and cherry pick for an idea, it is best to know what to look for when you decide to choose the modules. Here are nine things that we highly recommend for you, to keep an eye on, when selecting a module for the rooftop solar PV plant.

The cost of the Module

If you are considering solar, you must be aware of the difference in cost in a module that is made in India and one that is imported from the global market such as, say China. Where a module that is being imported may cost in the region of about Rs 19 to 20 per watt peak for a Tier 1 module, an Indian make will set you back by about Rs 25 to Rs 26 per watt peak. In the coming year, it is widely predicted that the cost of the global module may drop down to about Rs 17 while the Indian module cost may come to about Rs 21-23 per watt peak. The costs here are indicative and landed costs and may vary from manufacturer to manufacturer. The incoming GST may throw a spanner in works, where there is a possibility that the government may put some kind of an import duty on the imported modules, especially to push the ‘Make in India’ initiative. However, for now, going with a global module, will be more cost-effective for your solar plant.

Bill of Material (BOM)

Bill of Material is the material that has gone into the manufactured module and largely determines its quality and cost, therefore, it is a must that you run the BOM past a solar expert before you make a decision. BOM is extremely critical and can be sometimes difficult for a layman to interpret. Both long-term and short-term performance of the plant can be affected by an inappropriate BOM. If you are presented with BOM, keep an eye on the quality of the solar cells used, EVA – Adhesive, back sheet, glass cables, junction box, etc. If the BOM of modules is of an inferior quality, it would lead to a reduction in the lifetime as well as the performance of the solar plant.

Manufacturing process

How the modules are manufactured also has a strong bearing on the performance as well as the overall cost of the modules. If you are given an opportunity by the module manufacturer to visit the manufacturing facility, you should take a chance and do so. This may be more difficult if the modules are being imported. However, when choosing the partner, do quiz him about the manufacturing process. A simple case may be, that if the partner’s manufacturing process is not automated and requires a lot of manual work then there is a chance of introducing micro-cracks which may grow later under cyclic thermal stress manifesting in various failures. Another possibility could be poor lamination (adhesion or air bubbles) which can hamper the life of the module. Since a layman is not an expert in module manufacturing he has to take the help of an expert.

Power Tolerance

As a rule of thumb, power tolerance of your module must always be positive. While it is an industry standard now that only modules with positive tolerance are sold, always insist on checking this with your supplier. Ask for the flash test data (I-V characteristic) for each module that has been supplied so that you are sure of the power tolerance of the module that you will be placing on your rooftop and track its performance in future.

Protection

Most of the modules sold today have a tempered glass of 3.2mm thickness. It is only with this minimum thickness that modules can pass the IEC tests. However, if you live in a region where there is a lot of hail or snowfall or your rooftop is susceptible to things like coconuts falling from trees, you could also consider 4mm thickness glass modules. While more often than not, protection is mentioned in BOM, if need be, you should go into more specifics and details for the same.

Certification

It is extremely important that you go for modules that are certified. If you are already considering solar, do ask for the certifications that the module being offered to you has passed. Some of the certifications that are important are IEC 61215 for design qualification, IEC 61701 for salt mist corrosion testing, IEC 61730 part 1 & 2 for module safety qualification, IEC 62716 for Ammonia Corrosion testing which is advisable for site conditions like dairy, mines, toilets etc. Needless to say, the above standards pertain to Crystalline Silicon modules which are most common for the rooftop installations. If you live in an area that experiences extreme weather conditions, it is a must that you check the certifications to ensure that your modules are tested in the weather condition.

Module Degradation/ Performance Warranty

Seek the performance warranty from the module manufacturer. Most modules have a degradation rate of 2.5% in the first year followed by a linear degradation of 0.7% year on year for the next 25 years. However, good Tier 1 modules do not degrade on an average more than 0.4% year on year, linear. Even post purchasing, you must keep an eye on the module degradation and hold the seller responsible if the degradation is more than what has been mentioned.

Average Warranty Period

Tier-1 Global modules generally come with a warranty of 10-12 years against any defect in workmanship. Most of the Indian modules also offer a warranty anywhere in the region of 10-12 years. Be sure of doing a thorough check on the market standing and financial health of the company before picking the modules. A Tier-1 company is most likely to be financially secure and will stand behind its warranty in case something falls apart, whereas a lower rated company, may not be always very keen to listen to complaints and claims post the sale.

Insurance

In order to be sure and make a secure investment, even if you are setting up a small solar plant, do insist on third party insurance for your modules. You must ensure that module supplier’s warranty is backed by international insurance companies like Munich Re, Power Guard, etc. to safeguard your interests.

Other than the above, a solar expert will also keep a keen eye on AQL (Acceptable Quality Level), IPC (In-process Control), IQC (In coming quality control), OQA (Outgoing quality assurance), Packaging and Field Performance.

While there are plenty of other things for you to safeguard and check when deciding the module partner, these some of the things that you must keep in mind. Since most of these can be quite technical and difficult to understand if you are not from the background of solar, it would be useful to give the task of choosing a module to a technical expert as it can make or break the performance of your rooftop solar plant.

With MYSUN, you can always be assured that the installed projects will feature only the best solar modules, rated Tier-1, with all these pointers already taken care of. In fact, if you need to discuss any of these points with our solar experts, we would only be glad to help. We hope, the information above would help you make a sound and an informed choice.

[ Disclaimer ] – This articles has been originally shared by MYSUN India – Solar Rooftop Company as a classifieds to Green Ecosystem Solar Energy knowledge/education website, but since this is an articles and not classified, it has been moved to blog.