Monday, 21 September 2015

Check list for Installation

Find the Wattage of your appliances. List all the 12V electrical appliances you’ll use in a typical day, and find out how solar water heaters in Chennai  many Watts they each consume. Usually this is  solar water heater price in Chennai  on the appliance or in its handbook. If you can only find a figure for Amps, simply  solar water heaters in Chennai  multiply this by 12, to convert it to Watts.


Calculate your daily total Watt-hour requirement. Estimate how many hours you would use each appliance for over  solar water heater price in Chennai  a typical week, then divide by 7 for a daily rate. Multiply each appliance’s wattage solar water heaters in Chennai  by the hours you’ll use it for in a day. Then add all the totals together to get the final daily total Watt-hours you require.


Next calculate your panel size. Simply divide the daily total Watt-hours you require by the hours of usable light  solar water heaters in Chennai  you expect in an average day. This will give you your  solar water heater price in Chennai  minimum panel wattage. In the UK, allow 1 hour of light in winter, rising to 4 hours by mid-summer.

Then your battery size… Multiply your daily  solar water heater price in Chennai  Watt-hour requirement by 7 to create a weekly requirement, and  solar water heaters in Chennai  divide this by 12 to convert back to Amp Hours, which batteries are rated in. Multiply by two to give the correct battery size.
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And finally, your charge controller. Size your solar water heater price in Chennai  charge controller according to the Amps produced by your panel. Calculate  solar water heaters in Chennai  the Amps produced by dividing the panel wattage by 16.5.



A worked example. In one week you want to run a 65W television for 4 hours, and an 8W light for 5 hours. Your daily Watt-hour solar water heaters in Chennai  requirement for the  solar water heater price in Chennai  TV is 65 x (4/7) = 37Wh; and for the light you require 8 x (5/7) = 6Wh. Your total daily requirement is thus  solar water heater price in Chennai  43W. You only intend to use the  solar water heater price in Chennai  system in summer, so you need a panel that is 43/4 = 11W or more. Your battery size needs to be (43 x 7 x 2)/12 = 50Ah. And you  solar water heaters in Chennai  need a charge controller suitable for a solar input of at least 11/16.5 = 0.7A

How to choose solar panel for home...

Overestimate and you might end up spending more than you need to.  (It might be fun but most people don't buy   solar water heater price in Chennai an expensive Ferrari for a quick solar water heaters in Chennai   trip to the shops).

There are three main stages to a solar powered system. 
Power generation (the solar panel)
Power storage (the battery)
Power use (your items you want to run off solar power)


To work out the wattage correctly, the panel needs to  solar water heaters in Chennai   be sized according to how much power you are going to  solar water heater price in Chennai  use. (Later on you're going to need a bit of info on each electrical item you need to be solar powered).

The battery, no matter how large or small, is a solar water heaters in Chennai   storage container for solar power gathered in daylight for use immediately or for later on.  Highly important.  For example without a battery, a solar   solar water heater price in Chennai powered torch would be rather pointless in the dark!


Just remember that to maintain the  solar water heaters in Chennai   power storage at a constant level the solar panel needs to put in to the battery the  solar water heater price in Chennai  same amount of power as is going out of the battery now (or will go out of the battery later on).



However, at this point you don't solar water heaters in Chennai   yet need to consider the size of battery you are charging (unless you are sizing for an uninterruptible power supply (UPS) system).  You just need to know that  solar water heater price in Chennai  you will need one.

Solar panel buying guide checklist

Improve the energy efficiency in your  solar water heater price in Chennai   home to save up to 30% on your bills. You  solar water heaters in Chennai can do this by turning off appliances, using the dishwasher and washing machine solar water heater price in Chennai   only when full and purchasing energy-efficient appliances.

Assess what energy you currently use and  solar water heater price in Chennai   the system capacity you need (and can afford).


Check if your roof faces the right  solar water heaters in Chennai direction. Only north-facing panels will produce their full capacity.

Ensure there are no trees, power linessolar water heater price in Chennai   or other structures shading your roof.

Find out what local solar water heaters in Chennai    council approval is needed. Increasingly, local councils have staff on hand to assist with making the best solar water heaters in Chennai  decisions on solar.


Try to figure out your system's payback solar water heater price in Chennai   time.
Get multiple quotes from installers to ensure you're getting a good deal.

If you can't afford the upfront costs, consider solar water heater price in Chennai   solar leasing and power purchasing agreements.

Make sure the installer is accredited solar water heater price in Chennai   by the CEC and that the panel solar water heaters in Chennai  meets the required standards.



Check out the CEC guide to installing solar water heater price in Chennai   solar in your home.

Types of solar cells used

There are 3 main types of solar cells and the best type for you will vary depending on the installation application.

Monocrystalline silicon offers solar water heaters in Chennai high efficiency and good heat tolerance characteristics in a small footprint. An example of a quality monocrystalline solar panel is the Daqo solar water heater price in Chennai  250 watt mono module.

Polycrystalline (or multi-crystalline) silicon solar water heater price in Chennai  cell based solar panels are now the most popular choice in residential installs. Recent improvements in polycrystalline panel solar water heater price in Chennai  technology have resulted in the  solar water heaters in Chennai development of modules equal to or better than many monocrystalline brands in terms of size, efficiency and heat tolerance. One solar water heater price in Chennai  of the world’s leading producers of polycrystalline panels is REC.


Amorphous (or thin-film) silicon uses  solar water heater price in Chennai  the least amount of silicon. While  solar water heater price in Chennai  some thin film panels are among the least efficient solar cells, Solar Frontier CIS solar panels offer the solar water heater price in Chennai  highest conversion efficiency solar water heaters in Chennai  of any mass-produced thin-film module.

Panel cost vs. value – other factors

As not all module manufacturers  solar water heater price in Chennai are equal, there are a variety of other factors that should influence your purchase solar water heaters in Chennai decision rather than focusing  solely on cost.


Tolerance
This is the range a panel will either exceed or not meet its rated power. For example, a solar module you purchase  solar water heater price in Chennai may have a ‘nameplate’ wattage of 200 watts; but due to quality control issues, may in reality only be 195 watts. A positive tolerance rating means the module solar water heaters in Chennai  will not only generate 200 watts, but perhaps more under standard testing conditions.


Temperature co-efficient
The temperature co-efficient rating is solar water heater price in Chennai  important to determine what the impact heat has on a solar panel’s operation after installation. The lower the percentage per degree Celsius, the better. The  solar water heaters in Chennai  price of a module with low temperature co-efficiency can be a little more; but in Australia’s often hot  solar water heater price in Chennai conditions, a little extra cost will be worth it.


Conversion efficiency
The efficiency of how a solar panel solar water heater price in Chennai  converts light into electrical energy will determine how much power your system generates. If two solar panels cost the same, but one has a higher  solar water heaters in Chennai  conversion efficiency; then that module provides the better value for money – assuming the claimed solar water heater price in Chennai  efficiencies are correct.

PID resistance
PID stands for potential-induced  solar water heater price in Chennai degradation. Caused by  stray currents triggered by certain climate conditions; the  solar water heaters in Chennai  phenomenon can cause substantial power loss. Good solar panels will display little or no PID.


LID resistance
LID stands for Light induced solar water heater price in Chennai degradation; a process that occurs in the first few months after solar panels are installed.  solar water heaters in Chennai  While this stabilises after a period, it can reduce the amount of power the module produces. A good solar panel will have little or no LID.


Embodied energy
Another important aspect to look at is the embodied energy of the solar panel – that is how energy intensive the production  solar water heaters in Chennai  of the panel was and how quickly it will solar water heater price in Chennai  have paid itself back by producing more energy. Consider this aspect an environmental cost.

Durability / Longevity / Warranty
The durability or longevity of a solar panel warranty is important for a number of reasons – it can be an indicator of the  solar water heaters in Chennai  manufacturer’s confidence solar water heater price in Chennai in its products. Reputable solar panels will have a performance warranty a period of  solar water heaters in Chennai  25 years. All of our key modules; REC Solar, Daqo and Yingli Solar feature this 25 year warranty period.


However, an important point to remember about warranty is that it will only be honoured for as long as the company operates. It’s another  solar water heaters in Chennai  reason to select a well solar water heater price in Chennai  known brand of module rather than purchase an obscure low-cost brand that may disappear solar water heaters in Chennai  overnight. As you most likely won’t be able to buy solar panels directly from the manufacturer, your selection of installer and retailer is also important. It’s best to choose an installation company  solar water heaters in Chennai  that is a service agent for solar panel warranty work for the particular manufacturer you select so if you do strike a problem, the turnaround time solar water heaters in Chennai  to a resolution will be far faster.


Size and Watts
The size of the solar panel in Watts will  solar water heaters in Chennai  directly affect the cost, as solar panels are usually priced (and compared) in dollars per Watt.  Watts are related to the output of  solar water heaters in Chennai  each module; meaning a 100 solar water heater price in Chennai  Watt panel installed under ideal conditions will generate 100 watt-hours of electricity each solar water heaters in Chennai  hour and a 200 Watt panel will generate 200 watt-hours each hour. Therefore expect to pay up to double the price for the 200 Watt panel, compared to the purchase cost of a 100 Watt module.

The output of a panel also affects the solar water heaters in Chennai  physical size of the panel, meaning the 200 watt panel will be larger in size to the 100 Watt module. The type of solar cells used in its solar water heaters in Chennai  production also determines solar water heater price in Chennai  the size of the solar panel. They key issue to consider is that your system sizing is enough solar water heaters in Chennai  to power your appliances, and that the solar panels will physically fit in the area you wish to install them.



Your northerly facing roof space  solar water heaters in Chennai  (and increasingly, west) is very valuable solar power real estate, so you’ll need to consider carefully your future plans. If you believe at some stage you will wish to install more solar panels, you need to ensure you’ll have solar water heaters in Chennai  the space to do so, otherwise you may solar water heater price in Chennai  find you’ll need to replace existing modules well before the end of their serviceable life.

Solar Panel Cost Consideration



The cost of solar panels solar water heaters in Chennai has greatly reduced in recent years. Solar panels cost anywhere from under a hundred  dollars to upwards of five hundred dollars  solar water heater price in Chennai  each these days; depending on various factors.

It’s very important when selecting the best solar panels to use for your solar power system installation to bear in solar water heater price in Chennai  mind a few crucial factors aside solar water heater price in Chennai  from the price tag; after all, your purchase decision is one you’ll be living with for a very long time.

Don’t base a purchase decision on solar panel cost alone – the following are a few tips for choosing the best solar water heaters in Chennai modules for your installation situation.



How much do solar panels cost?

This depends on a number of factors – but generally speaking, in relation to modules suitable for use on a home solar water heaters in Chennai  and as part of a system installation; they cost a few hundred  solar water heater price in Chennai  dollars each with subsidies taken into consideration.


The cost of a solar panel is determined in part by the size (in Watts), the physical size, the brand, quality of materials, the  solar water heaters in Chennai  durability / longevity (or warranty period) solar water heater price in Chennai  and any certifications the solar panel might have.



The price you’ll pay will also depend on the number of panels as part of a package if you’re buying a full system. The more  solar water heaters in Chennai modules in the system, the solar water heater price in Chennai less cost per unit (generally speaking).

Thursday, 10 September 2015

Maintenance Requirements

Ministry has laid down some minimum solar water heater price in Chennai technical requirements for installation of solar water heating systems in the field. These have been made mandatory for solar water heater price in Chennai manufacturers and suppliers and are available on MNRE 


These requirements  solar water heater price in Chennai are have been prepared in such a way that even a lay man can also check them and ensure that those are being adhered to solar water heater price in Chennai by the manufacturers/suppliers. In case any manufacturer/supplier is found not sticking to these requirements, he may be blacklisted if informed to the Ministry.


Maintenance Requirements
Domestic solar water heating solar water heater price in Chennai system do not need significant maintenance requirements. Occasional leakages in the plumbing could be easily repaired by common plumbers. In case quality of water is hard, scale deposition in the collectors may result  solar water heater price in Chennai over the years. 

This may require de-scaling with acids for which it is best to contact the suppliers. Broken glass may  solar water heater price in Chennai also have to be replaced by the suppliers. If outside exposed surfaces are painted, the paint may have to be  solar water heater price in Chennai  redone every 2-3 years to prevent corrosion of the surfaces.


Trouble Shooting Guide For Solar  Water Heating Systems

Some of the troubleshooting are mentioned below:
Problem faced Probable cause and remedies

No water in tap
 - No cold water supply
- Wall at the outlet of system closed
- Air lock in the pipes


Water not heated at all,although cold water flow is normal
- Consumption of hot water may be too high; Check use points and use pattern
- Collector may be shaded
- No flow of water through the Collector  as it might be choked due to scaling;
 Get it checked from the manufacturer Water not hot enough or sufficient quantity of hot water is not available


- Cloudy weather
- Consumption too high
- Frequent on-off of hot water tap
- Collector dirty
- Vapour lock in the collector which can be removed by allowing it to cool & draining the system


- Partial choking of the collector  Little quantity of boiling hot water is received
- Vapour locking in the collector
- Pinched inlet/outlet pipes


On a cloudy / rainy day


On cloudy days also, if it is for a day or solar water heater price in Chennai two, you still get warm water aswater gets heated due to diffused radiation available in the atmosphere.The system, however, is solar water heater price in Chennai either connected to an electric geyser in thehouse or an solar water heater price in Chennai electrical back-up is provided in the  solar water heater price in Chennai storage tank of thesystem which is switched on when water is not sufficiently hot. So, you get hot water all the time even on solar water heater price in Chennai  rainy days.



For a house with one bathroom and 3 to 4 solar water heater price in Chennai members, 100 liter per day capacity system solar water heater price in Chennai should be sufficient. For more numbers of bathrooms, the capacity will increase accordingly due to pipe losses & more solar water heater price in Chennai  number of family members. Generally the capacity is decided based on hot water required in mornings for bathing. If the usage solar water heater price in Chennai is in evening & at other times also, the capacity is decided accordingly

For service contact us in

http://redsun.asia/solar-water-heater-price-list-in-chennai.html

Subsidies for Solar products


The system can be installed at net of subsidy by following ways:

Domestic Systems

 Through State Nodal Agency- Contact solar water heater price in Chennai respective state nodal agency in your state ( list  solar water heater price in Chennaiwith phone no. given on MNRE website) who will visit the site, provide information on cost, size & other details of system required and get it installed at net of government
subsidy through some manufacturers.

 Through Accredited Channel solar water heater price in Chennai  Partners of MNRE (List availableat MNRE website)-Contact any of them and get the solar water heater price in Chennai system directly installed from him at net of subsidy.


Institutional Systems

 Through State Nodal Agency- In same fashion as solar water heater price in Chennai above by inviting tenders and placing order to selected manufacturer 

 Through DGS&D rates- Details available on DGS&D website

 Through Accredited Channel Partners- In same fashion as Above A 100 litre per day capacity system suitable for 3-4 people can save upto1500 units of electricity in a year, depending on hot water solar water heater price in Chennai  used. It can also save around 140 litres of diesel in an establishment using oil fired boiler besides reducing green house gas solar water heater price in Chennai emissions in the atmosphere.


Higher capacity systems will save higher solar water heater price in Chennai amount of electricity/fuel oil besides reducing higher amount of GHG emissions.

Electricity is expensive and is not available solar water heater price in Chennai due to power cuts in many areas when required for heating water. Solar Water Heater, since it stores hot water in solar water heater price in Chennai an insulated tank, provides water all the time when required.


Fuel oil is also expensive and creates solar water heater price in Chennai  pollution. Storing the fuel oil for long term use in commercial establishments is another problem.

The table below gives approximate likely solar water heater price in Chennai electricity and money savings for a typical 100 liters per day system located in different parts of the country.

Cost calculation


Approximate Cost Of Solar Water Heater
Cost of solar water heater depends on size and type of system installed.Smallest size of a system is 100 liter per day, solar water heater price in Chennai which means that it can deliver 100 lietrs of hot water in a day at 60 C. A 100 lpd capacity system is sufficient for a family solar water heater price in Chennai of 3-4 members and it may cost Rs. 15,000 to Rs.22,000 in planes depending on the type of system. In hilly & N-E region, the cost may be 15 to 20% more.


The system cost does not include the cost solar water heater price in Chennai of cold water tank, & its stand which is required if overhead tank is not installed in a house/ building.

Cost of hot water insulated pipe line also, solar water heater price in Chennai may be extra if number of bathrooms is more than one. Additional cost towards all these components may increase by 5 to 10%.

The cost, however, does not increase solar water heater price in Chennai  linearly with increase in capacity,rather it comes down proportionately as we go for higher capacity system.


Subsidy Available From Government
the Government provides subsidy to the solar water heater price in Chennai  extent of 30 to 60% to different category of users and States subject to certain benchmarks as per below:


General category states for all types of beneficiaries: 30% capital solar water heater price in Chennai  subsidy or loan at 5% interest on 80% of the benchmark cost

Special category states for domestic & non commercial categories (not availing accelerated depreciation):
60% capital subsidy orloan at 5% interest on solar water heater price in Chennai  80% of the benchmark cost

Special category states for commercial users category (availing accelerated depreciation):
30% capital subsidy or loan at 5% interest solar water heater price in Chennai  on 80% of the benchmark cost


Benchmark Cost :
ETC based systems : Rs. 10,000/ sq. m.

FPC based systems : Rs. 11,000/ sq. m.