Solar Panel Installation and Maintenance

Solar Panel Installation and Maintenance

Abhishek Bana

Solar System Components

Solar systems are made up of solar panels (modules), a mounting system, and a solar inverter with computerised controller. Solar panels produce DC electricity from sunlight. Then the inverter converts the generated electricity into AC, so that it can be used in the household. The computerised controller manages the solar system and ensures optimal performance. If you want battery backup system or an off-the-grid solar system, a battery is required.

 

Solar Panel Installation

The most common location for the installation of solar panels (solar PV) is the roof. Most roofs typically have the desired specifications for the installation. Nevertheless, if installation on the roof is not applicable or desired, the solar panels could also be mounted on the ground. You just need to make sure that there are not objects constraining their access to the sun.

Setting up a solar battery storage at the same time of installing a solar system can save you from worrying about the lack of usable energy during cloudy times, it can also lower the solar battery storage system costs during installation.

 

Inverter Installation

The inverter is typically installed near the main panel and it could be both indoors and outdoors. Inverters are more efficient if kept in a cooler place. If the inverter is outdoors it should be kept out from the afternoon sun. If it is installed indoors, the garage or the utility are usually the best places, since they stay cool for most of the year and have ventilation.

 

System Monitoring

You can use your computer or other device to check your solar system’s performance. For example, you can check how much electricity you generate at different times and decide what time is suitable for using your washing machine or other utilities.

 

Solar Panel Maintenance

Since there are no moving parts, solar panels require very little maintenance. Once you have covered the installation cost of solar panels, there are not many costs associated with maintaining them. Having said that, you should inspect them a few times per year for dirt or some other things that might have piled on top. It is important that the panels are clean and there is nothing blocking them from efficiently absorbing the sun.

Before cleaning the panels yourself, you should consult with your installer about the warranty conditions. Some solar panel manufacturers could terminate the warranty if any self cleaning is done. For a general cleaning, you can just use a normal garden hose to wash the face of the panels. You should do this in the morning or evening. Also avoid spraying them with cold water while they are hot because that might damage them.

Moreover, If the panels need some more cleaning that the hose cannot provide, you can use a sponge with soapy water to scrub them. You can also get the services of a cleaning company. This is advisable if the panels are too high or need more thorough cleaning.

You should have your system examined every 4-6 years by an installer. It is also a good idea to ask your installer about specific maintenance requirements for your solar system.

 

If you want to take the next step and get solar panels for your home, then look no further. Fill in the contact form to compare up to 4 quotes from suppliers near you. Since Saurally is Solar Panel Manufacturer, you’ll get the best market price without any middleman.

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How does a PV system work?

How does a PV system work?

By Aruna Shekar

The basic component of every photovoltaic system is the solar cell. In most cases the solar photovoltaic cell is made of silicon, a semiconductor that  is also used for diodes, transistors and computer chips. With the introduction of foreign atoms (doping) a p-n junction is generated in the cell that  “installs” an electrical field in the crystal. When the light reaches the solar photovoltaic cell then charge carriers are dissolved out of the crystal  bindings and moved by the electrical field to the outer contacts. The result at the contacts of the solar cells is the creation of a voltage of approximately 0.5 V. This is called photovoltaic effect. In order to achieve a usable voltage in the region of 20 – 50 V, many cells are switched together in series in a solar module. Besides this, the solar photovoltaic cells in the modules are  mechanically protected and sealed against environmental influences.

To make a solar generator, firstly a string of many modules connected in series is composed.This string can again be parallel-connected to further strings. Protect diodes are incorporated into panels to prevent cells with low resistance shunt leakage from getting very hot during periods of partial shading, while string diodes are mounted to prevent reverse current in case of a short circuit. This scheme has the advantages that it can be sized without limits and, in case of fault of a PV module, the damage does not compromise the operation of the entire system.

In many parts of the PV plant (end of a string, inverters and other point of transformation of the current) switchboards are installed with the function of protecting and isolating the various parts of the PV plant. They can be used also to disconnect some sections or to switch off the entire system.

Systems needs the inverter to convert the DC from the solar modules to AC. The solar inverter converts the direct current delivered by the modules into alternating current and feeds it into the public grid. The number of modules determines the total DC watts capable of being generated by the system, although the inverter determines the amount of AC watts that can be consumed. A feed meter measures the generated solar electricity in order to collect payment for the photovoltaic energy generated. The user meter counts the current consumption of the household separately.

This guarantees that the fed-in electric energy is paid for by the energy supply company for 20 years at a guaranteed price. To a certain extent, the owner of the plant becomes a power system operator.

When the system is not connected to the grid is called off-grid. The generated power is stored in a battery. A charge controller may be used to avoid battery damage by excessive charging or discharging.

For the owner of a solar power system the power of his plant is of interest and so is the module is measured according to the Standard-Test-Conditions

(STC) and defined by three limiting conditions:

  • Full Sun radiation (radiation strength E = ESTC = 1000 W/m2)
  • Temperature of the solar module: JModule = 25 °C
  • Standard light spectrum AM 1.5

The capacity of the solar module under these conditions is the rated power of the module. It is given in Watt-Peak (Wp) as it actually describes the  peak power of the module under optimal conditions. The efficiency of silicon solar modules is in the range of 13–20%. Besides silicon there are also other materials such as cadmium telluride or copper-indium-selenide, which go under the name of thin film technologies. These reach module efficiencies of 7–13%.

 

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10 Reasons to Install Solar Water Pump

10 Reasons to Install Solar Water Pump

By Supraja Mahapatra

Have you ever thought about installing a solar power well pump? Do you have a rural or isolated location where you need to pump water either from the surface or from hundreds of feet underground? If so, a solar power well pump is the perfect solution. Technology developments in both pumps and solar power have made this possible. Both solar panels and solar pumps have made advances which make them capable of handling a wide range of water pumping needs. Many of these systems did not exist just a few years ago.

Below are the top 10 reasons to install a solar well pump. If you have never thought about installing a solar power system before, browse through the list and see if you can think of any uses. It is surprising, when remote low cost water pumping options are made available, ideas and uses pop into mind! Don’t delay, find an install a system today.


Pump water anywhere on earth. No external power required

The problem with pumping water in rural locations is the need to run electricity to the site. For many years wind power and windmills were used in these secluded locations. Windmills are expensive and hard to maintain. There are better options today. The breakthrough in solar water pumping is that there is no need for an external power source. The sun and the solar panels provide all of the electricity needed to pump water from hundreds of feet underground.

Solar well pumps are more efficient and more powerful than ever before

Solar power pumps of today are not like the novelty solar fountain pumps of the past. These are high power, efficient, commercial products. Top of the line solar well pumps are made of stainless steel and feature brushless DC motors. Stainless steel is used for the pump housing and pumping mechanism for proper sanitation and to ensure a long life. The stainless steel will resist corrosion even when suspended in water for years. The stainless pumping mechanisms minimizes wear due to sand and other particles, while lifting water from deep underground. The brushless DC motors are some of the most efficient on the market. Since they are brushless, there is never a need to remove them from the well to change the brushes. These motors are rated for tens of thousands of hours of operation without maintenance.

Systems are low cost and readily available

Solar power systems of the past had high price tags attached, in the tens of thousands of dollars. Advances in technology have made low cost systems possible and readily available. One of the main advances making this possible are solar cells and panels. Solar cell manufacturing has progressed to the point where it is very affordable. A system that previously cost tens of thousands of dollars is now in the low thousands. A 10X decrease!

A basic, but complete well pump system will cost about Rs 100000. This baseline system will pump water from a few hundred feet deep, at a few gallons per minute flow rate. This basic system will replace most windmills, matching both depth and flow rate. They will keep a large pond full of water with no operating cost or pump enough water for a few hundred head of cattle.
Higher performance systems increase in cost to about three to four thousand dollars as more depth and flow rate are required. These systems are suitable to provide water to entire households or hundreds of head of livestock. They can replace your standard household well pump. The slight cost increase in these systems due to the higher performance, but remember these are complete systems, solar panels (a large cost) included. Specialised systems can cost in the low tens of thousands of dollars. These are high performance systems pumping many liters of water per second, sufficient for a complete farm or even remote village. They are overkill for most livestock and household needs. They are more suitable for large farming operations and crop irrigation.

No ongoing operating costs

After the initial system cost, which is often comparable to other options, there are no ongoing operating costs. Normal wells burn money every time they turn on to pump water. This is not the case for solar well pumps, which get their power from the sun. Every single day the sun is shining you are earning free money from the sun. What better deal exists? The sun shines down and water is pumped up from deep underground, saving you from overpriced electricity charges.


Much cheaper than installing main power to remote locations

Trenching main power to a remote location is costly in both time and money. This is one reason windmills of the past were so popular, since they required no electricity to operate. The “windmills of today” are solar power systems capable of pumping water without connecting to main power. You are no longer limited to how long of a power cable can be trenched into the ground or how hard the wind blows.

 

Complete systems Shipping and Installation anywhere in India

Complete systems can be shipped right to your door in only a matter of days. It only takes two boxes, one for the pump/controller and one for the solar panels, to ship directly to your house or farm. After the system reaches you, our engineers will be sent on site to deploy the system and commission.

Systems are modular and can be upgraded over time

The components that make up solar power well pump systems are very modular. They can be swapped out and upgraded as needed. If more overcast performance is needed, extra solar panels can be added. If more water is needed per day, batteries and extra panels can be added, so water can be pumped during the night. If more volume is needed, the pump can easily be replaced with a higher power model offering higher flow.


Solar well pumps are easy to maintain

There are very few mechanical components. Solar panels are highly reliable and do not require any maintenance besides a quick wash every year or two. Brushless motors do not have brushes (hence the name) and therefore require no maintenance. The pumping mechanisms are highly reliable and are easy to replace in the field. A system should be able to pump tens of thousands of gallons without any maintenance.


Cheap Maintenance

There are two items in solar well pump systems which may need occasional maintained, both of which are very low cost. Occasionally, every year to two, the solar panels should be washed off to ensure maximum performance. Less often, about every 5 years, it is good to replace the pumping mechanisms which can degrade over time reducing performance. These mechanism cost about ₹2000 and can be replaced in the field.


Systems can be self-installed in a single weekend

Solar power well pumps systems are very simple and can be installed in a single weekend. All of the solar panel connections are made with waterproof connectors, no soldering required. The solar pump, solar panels, and sensors all connect to the controller using screw terminals, again no soldering required. The pump should connect easily to existing power cables and plumbing. Just lower it down into the well and assuming you finish installation before night, water will start flowing!

 

Saurally Manufactures and install solar water pumps across India. Please contact us with your requirements for a quote. 

 

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