Sunday 31 July 2016

The Basic Idea Of A Solar Tracker

A solar tracker is something which directs solar panels towards the direction of the sun. This is a special device which helps in changing the orientation of the panel and helps them to face the sun as it changes direction throughout the day; It helps them to follow the sun’s path.
In photovoltaic systems, trackers help minimize the angle of incidence (the angle that a ray of light makes with a line perpendicular to the surface) between the incoming light and the panel, which increases the amount of energy the installation produces. Concentrated solar photovoltaic’s and concentrated solar thermal have optics that directly accepts sunlight, so solar trackers must be angled correctly to collect energy. All concentrated solar systems have trackers because the systems do not produce energy unless directed correctly toward the sun.
The Types Of Solar Trackers
There are Single Axis Solar Trackers which rotate on a single axis and help to move the tracker back and forth in a single direction. There are many varieties alone in the single solar tracker zone. Among the different types of single axis solar trackers, there are vertical, horizontal, tilted and polar aligned trackers which rotate according to the name which has been given to them. This means, the name and type actually specifies the function of the solar tracker.
Then there is the dual axis tracker which faces the sun continuously and it always move in two different directions. Among these dual solar trackers some of them are tip tilt solar trackers and the others are azimuth altitude solar trackers. Dual-axis tracking is typically used to orient a mirror and redirect sunlight along a fixed axis towards a stationary receiver. Because these trackers follow the sun vertically and horizontally they help obtain maximum solar energy generation.
There are also several methods of driving solar trackers. Passive trackers move from a compressed gas fluid driven to one side or the other. Motors and gear trains direct active solar trackers by means of a controller that responds to the sun’s direction. Finally, a chronological tracker counteracts the Earth’s rotation by turning in the opposite direction.
How to choose a solar tracker?
Choosing a Solar Tracker completely depends on the size of the system, the constraint of the land, the electric rates and of course the most important things are the latitude and weather. In case of large projects, where utility scale us very high; the installers mostly prefer single axis solar trackers. In case of residential applications, dual solar trackers are mostly used. If a solar tracker is needed in a place which has higher altitudes, the vertical trackers are used there because they can be adjusted according to angles.
Now a day, the use of solar trackers has increased a lot and it has been a great source of electricity production. If they are fixed in a certain angle and it faces the sun the whole day, a solar tracker can produce ample amount of solar energy. That is why; they are gaining popularity.

Saturday 30 July 2016

The Specific Qualities Of Single Axis And Dual Axis Solar Trackers

A solar tracker is something which directs solar panels towards the direction of the sun. This is a special device which helps in changing the orientation of the panel and helps them to face the sun as it changes direction throughout the day; it helps them to follow the sun’s path.
Why Solar Trackers?
In photovoltaic systems, trackers help minimize the angle of incidence (the angle that a ray of light makes with a line perpendicular to the surface) between the incoming light and the panel, which increases the amount of energy the installation produces. Concentrated solar photovoltaic’s and concentrated solar thermal have optics that directly accepts sunlight, so solar trackers must be angled correctly to collect energy. All concentrated solar systems have trackers because the systems do not produce energy unless directed correctly toward the sun.
Finding the right tracker involves making decisions on a number of variables, from the terrain to the climate to the type of solar panels you’ll be using. Single-axis and dual-axis trackers are two styles of trackers that engineers often use on the job site. Each have their own unique advantages and disadvantages, and you’ll need to familiarize yourself with those before making a decision for any job site.
The Types Of Solar Trackers and Advantages- Disadvantages Of Using Them
Single Axis Solar Trackers have a single degree of flexibility that serves as an axis of rotation. This is usually aligned along a North-South path, but it is possible to align them in any cardinal direction.
Advantages of using single axis solar trackers are as follows
  • Generally a lower cost than dual axis solar trackers.
  • Higher lifespan than dual axis trackers.
  • Higher reliability than dual axis solar trackers.
Disadvantages of using single axis solar trackers are as follows
  • Lower energy output during sunny conditions when compared to dual axis solar trackers
  • On the other hand, dual axis trackers allow for two degrees of flexibility, offering a much wider range of motion. The primary and secondary axes work together to allow these trackers to point the solar panels at specific points in the sky.
  • It has fewer technological advancements
Advantages of using dual axis solar trackers are as follows.
  • Higher degree of accuracy in directional pointing.
  • Higher degree of flexibility, allowing for a higher energy output on sunny days.
Disadvantages of dual axis trackers are as follows.
  • Lower lifespan and lower reliability
  • Higher mechanical complexity, making it more likely for something to go wrong
  • Unreliable performance in cloudy or overcast weather
Single Axis Solar Trackers tend to be better for companies with a lower budget or for areas with frequent cloud cover. Dual axis solar trackers tend to be better for areas with high levels of direct sun. Ultimately, the right tracker comes down to the individual application. Depending on the budgetary restrictions of your client, the terrain and climate, and the required lifespan, you’ll need to make the most appropriate decision.

Friday 29 July 2016

Save More Energy With This New System

The solar tracking systems are gaining popularity day by day. It has a lot of potential and that is why it is making a huge impact on lifestyles. These solar tracking systems have a lot of benefits and potentials which are of great usage.
These solar tracking systems have an advanced technology which has importance in mounting photovoltaic panels. Stationary mounts, which hold panels in a fixed position, can have their productivity compromised when the sun passes to a less-than-optimal angle. Compensating for this, solar trackers automatically move to “track” the progress of the sun across the sky, thereby maximizing output.
There are several advantages of using solar tracking systems. It is better to know about them thoroughly before one starts using them.
The Advantages
·         These trackers generate more electricity than the other stationery counterparts as it has a direct and increased exposure to the solar rays or the rays of the sun. As a result to this, these solar tracking systems have a ten to fifteen percent increase in the energy saving capacity depending on what exactly is the geographical location of the tracking system.
·         There are different kinds of solar trackers. The most common among them are Single Axis Trackers and dual-axis trackers, all of which can be the perfect fit for a unique jobsite. Installation size, local weather, degree of latitude and electrical requirements are all important considerations that can influence the type of solar tracker best suited for a specific solar installation.
·         Solar trackers always generate more electricity and energy but at the same time it takes the same amount of space needed for fixing a tilt system or any other energy trackers. It gives you the way to optimum land usage.
·         In case of solar tracking systems, the utility of power which is generated is high during the day time than that of night. That is why; it is more efficient in gathering more energy during the peak times of the day. Using a tracking system actually means, you are maximizing the energy gain at the peak time of the day.
·         They are easy to maintain. Due to advancement of technologies and due to the durability power of electronics these solar trackers have higher longevity and it has a low maintenance cost as well.
But, here are some disadvantages too in the shadow of too many advantages. It is even better to know the weaker points of Solar Tracking systems before you start using them.
·         The first thing among them is that, the solar tracking systems are a bit expensive than the stationery counterparts. But this criterion is negotiable. If one wants a good and reliable source of energy, then one has to spend more.
·         Though the maintenance cost is low, the maintenance function has to be authenticated on a regular interval, so that it can run smoothly.
These are a bit complicated to handle. So one needs to learn how to handle them properly.

Tuesday 26 July 2016

Gaining Popularities Day By Day

Global warming has increased the demand and request for green energy produced by renewable sources such as solar power. Consequently, solar tracking is increasingly being applied as a sustainable power generating solution.

Solar Tracking System is a device for orienting a solar panel or concentrating a solar reflector or lens towards the sun. Concentrators, especially in solar cell applications, require a high degree of accuracy to ensure that the concentrated sunlight is directed precisely to the powered device. Precise tracking of the sun is achieved through systems with single or dual axis tracking.

But before we discuss further about solar tracking systems, we need to know; what exactly solar tracking is about.

Solar Tracking is an obvious way to improve the efficiency of solar power plants. As the sun moves across the sky an electric actuator system makes sure that the solar panels automatically follow and maintain the optimum angle in order to make the most of the sunbeams. Tracking the sun from east in the morning to west in the evening will increase the efficiency of the solar panel up to 45%. With almost no maintenance cost you can expect full return on your investment. That is why; solar tracking is a good way to increase and to produce solar energies than the other ways of doing it.

Different Varieties Of Solar Tracking Systems

There are different ways in which one can do solar tracking. There are variations in solar panels or solar trackers. Before using them, one needs to know about the variations of the trackers.

There is a single axis solar tracking system, where the panels can turn around the center of the axis and can face the sun throughout the day to consume energy.

Then there is dual axis solar tracking system. Dual axis tracking is typically used to orient a mirror and redirect sunlight along a fixed axis towards a stationary receiver. But the system can also gain additional yield on the PV cells.

Why One Should Use Solar Tracking Systems?

There are many advantages of using the solar tracking system. They are as follows.

Solar Trackers generate more electricity than their stationary counterparts due to an increased direct exposure to solar rays.

There are many different kinds of solar tracker, such as single-axis and dual-axis trackers, which can help you find the perfect fit for your unique job site. Installation size, local weather, degree of latitude, and electrical requirements are all important considerations that can influence the type of solar tracker that’s best for you.

Solar trackers generate more electricity in roughly the same amount of space needed for fixed tilt systems, making them ideal optimizing land usage.

There are certain disadvantages of using them too.

Solar trackers are slightly more expensive than their stationary counterparts, due to the more complex technology and moving parts necessary for their operation.

But, this is not much of a disadvantage keeping in mind the advantages it has. So, using a solar tracking system is a good ideas.