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Tilt Sensors: A Widely Used Technology for Solar Tracking

Tilt sensors considerably impact the CSP, i.e. the output of solar power plants and thus, are basically used for solar tracking technology. Although the necessity of solar tracking and the improvement in production because of it is proven, there are many confusions around how these systems actually function and what the predicted profits out of them. So, just read on to know the efficiency of the tilt sensors and its role in solar tracking technology:

 

Significance of solar tracking system:

 

The power output relies on the panel orientation in respect of the sun in case of solar power plants. As the incorrect arrangement extends beyond a point, the output begins falling smoothly. To be exact, the output of the solar panels falls with the angle’s cosine between the panel and the incident radiation.

 

The misconception is that the most of the solar power we get only in the noon times. Even, solar research has shown that the power available amid evenings and early mornings are hardly half of the power available amid noon time. Even, the inclination angle at which optimal power may be predicted also of the function of season and location. Solar tracking’s absence implies most of this power is lost because of incorrect arrangement between the collectors and the sunlight.

 

In India, solar energy is available abundantly for most of the year. However, in other parts of the universe, because of poor availability of solar energy, not getting solar tracking system causes poor power output and thus large payback periods. Even, the use of Solar Tracker in India can essentially increase the power output resulting in quick recouping of the investments done.

 

Solar tracking can increase the solar power plants’ output by 10-25% relying on the area and climatic conditions. If there is place constraint, more yield can be accomplished utilising solar tracking systems.

 

Role of tilt sensors in solar tracking technology:

 

Although various methods can be utilized for Solar Tracking, tilt sensors are possibly the most widely utilised technology.

 

What makes tilt sensors the desired option for this application more than other technologies? Few features of tilt sensors mentioned below show them an ideal fit for this application:

 

  1. Tilt sensors are cost-effective, easy-to-install-and-use and compact. Their price is lower than the price advantages one reaps out of them, justifying their utilization for this application. Besides, optical encoders are not easy-to-install and incorrectly arrangement during the installation can make a fixed error in the output unless corrected.
  2. Tilt sensors give a digital output which can be fed straight to controllers for controlling the collectors’ orientation. The output stays correct over the period. Since the optical encoders are relative angle sensors, function over the time can make a small error in the output which may slowly maximize.

3. Tilt sensors are weathered, and thus, bear rains, heat and other high weather conditions. While compared to tilt sensors, optical encoders having moving elements and therefore, are subjected to tear and wear. Dirt and dust also impact their functionality.

Solar Trackers in USA: A Way of Unlocking the Complete Potential of Utility-Scale Photovoltaic

Solar trackers are essential to helping the entire solar industry. In the sunny parts of the USA, solar PV projects are coming in at an excellent 4.5-5.5% per KWH. These projects include economies-of-scale benefits in comparison with a rooftop or smaller type PV projects. However, there is another essential technology benefit: since the utility-size systems are ground-mounted, solar trackers in USA can be used to enable the panels for following the sun during the daylight hours.

 

The benefits of solar trackers are exceptional, sometimes prolonging annual power production 20% in comparison with the fixed-mounted systems. For projects, solar trackers in USA will more than makeup for their general increase in upfront expenses over a system’s lifetime, sometimes leading to the lowest LCOE (Levelised Cost of Electricity) in projects. Not just is annual production maximised, but solar tracking systems also generate more power amid peak demand hours in comparison with the fixed-mounted systems.

 

Significant benefits of solar tracking:

 

Large photovoltaic projects which are ground-mounted, present a common question: should the utility go with a solar tracking system or a fixed mounted photovoltaic system amid the daytime? Basic considerations incorporate the entire annual electricity generation and the electricity amount generated amid hours while electricity demand is at its topmost level.

 

Photovoltaic watts is a helpful tool for testing the agreements involved. The software anticipates the power generated from a photovoltaic system under several configurations. However, a solar tracking system can also generate more energy when a utility most wants it and when the power demands are at their peak.

 

Solar Tracker basically includes extra upfront expenses of 2-10% on large utility-scale projects. Recovering that added investment, nevertheless, will be area-dependent. Usually speaking, single-axis trackers generate nearly 20% more power in comparison with fixed-mount systems only about everywhere in the USA. Well, the amount of annual energy generated in a cloudy area like Seattle is just around 60% of a sunny place like Albuquerque, which will highly affect the economic survey.

 

The utility-scale PV market is starting:

 

With the reduction in solar prices, installations have risen. The solar market of the USA is more than 6 times bigger than it was in only 2010. The great times are predicted to continue, with an expectation of 12GW of photovoltaic installed in 2016 as organisations rush to take benefit of expiring tax credits. The rising development has in big portion been driven by utility-scale systems, of which yearly installations prolonged from near 0 in 2009 to 4GW in 2014, and are predicted to be nearly 7GW in 2016.

 

Nevertheless, 2017 may bring a high drop in photovoltaic market size. With the help of the better Solar Tracking technology, thankfully solar will continue its downward path in expenses for offsetting the elimination in the federal ITC.

 

With the constant enhancement in cost and functionality of every prime component including inverters, trackers, and modules, it seems utility-scale solar will stay and is already placed to be a very challenging source of power going forward.

Solar Panel Tracker: An Essential Part of Solar Photovoltaic System

Solar panel trackers are the devices which rotate solar panels towards the sun across the day. The usage of solar panel tracker is in commercial solar farms; nevertheless, they stay creative for residential use as they can be really costly to install. The solar array can be protected by the integrated monitoring systems from unfavourable climatic conditions like heavy snowfall or high winds.

 

Time tracking appears so easy but it’s a great way of getting the most benefit of your solar panels. A solar panel tracker is a device which follows the sun for capturing its energy. Many devices have been made for tracking the sun but these are costly.

 

Although solar tracking system has been commercially used for many years, there has always been the requirement of an alternative, as it can be costly. Solar Trackers increase the amount of time solar panels generate power by facing the sun.

Thus, rather than using the device which moves while the sun does, there is also the concept of programming the panel for moving with time, for reducing the costs.

 

Additional hours of power can be found via an attachment of solar panels. You just need to select times across the day and the panels will be targeted to precisely where the sun is positioned. Solar panel tracker will be waiting there for when the sun comes back out if it is behind the clouds.

 

Efficiency of solar panel trackers:

 

Solar Tracking Systems can provide with marginal advantages in the winter and substantial advantages in the summer and total are said to supply up to 40% more electricity than a static array yearly.

 

Functions of solar trackers:

 

Active trackers move the panels along 1 or 2 axis using motors and software for turning the array towards the sun. Passive trackers depend on the sun for heating a liquid contained in the canisters on the array’s slides. As the uncovered canisters heat up, the liquid extends into a gas, pushing the rest of the heavier liquid to the covered canister, moving weight to that side of the array leading it to rotate.

 

Price of solar trackers:

 

Sometimes, the extra price can’t be balanced by the extended income. In several cases, it could be lesser expensive to easily add more solar panels. Nevertheless, it can be benefit considering tracking for bigger ground-arrays for prolonging output from a provided space, or while the largest power demand happens in the summer; for instance, for heating a swimming pool or powering air conditioning.

 

Are solar panel trackers relevant for you?

 

Solar panel trackers are perfectly used on uncovered ground arrays. Nevertheless, additionally, they can be utilised on flat surface of the roofs. As solar panel trackers are more typically utilised in commercial settings as well as homes with large areas of land in more remote areas, you will definitely need to consult the expert installers as to whether a solar tracking system is relevant for your home or not.

The Best Motor for the Solar Tracking System

While it comes to pointing out electric motors for solar tracking applications, environmental protection is a major consideration because of their exposure to the factors. In solar tracking, you can throw in torrid heat, gale winds, hailstorms, blizzards and, for good estimation, include virtual lasting authenticity. Thus, designs of motors for solar power applications should stand up to high in temperature, highly corrosive salt sprays, wind loads, humidity and rough airborne particulate matter.

 

Use of motors with integral intelligence capacities becomes more essential, as solar power projects become bigger in scope. The motor types drive performance which now can be built into the motor can enable communication among motors over a network, thus, eliminating the cost of the entire system and the TCO (Total Cost of Ownership). The types of motor utilised in solar power applications run the gamut.

 

  1. Stepper motors:

These are not costly but become difficult and lose some economic advantages when elements are included for operating in the closed-loop position control schemes which define solar tracking. These motors’ air gap is a size’s fraction of other types of motors and can cause rotor binding against the stator while there are high-temperature variations between several motor parts, as while the motor’s one side sees direct sunlight and the underside is then shaded. Basic speed range of the stepper motor is also limited on the high side to nearly 400rpm, which is not beneficial while stowing trackers fast when worst storms come nearer.

 

  1. AC induction motors:

These motors have been used in past Solar Tracking Systems as they can draw energy directly from the grid; however, it is hard to control AC motors at slow speeds required in most tracking applications. When induction motors turn on and off in a step function for tracking the sun, it doesn’t allow the most effective continuous collection and tracking of solar power.

 

  1. BLDC (Brushless DC) motors:

Although these motors are the widest application of today in tracking systems, they have a low TCO and are totally maintenance-free. This particular motor has no-prone brushes, is highly effective and hits nearly 3000rpm, a different benefit while a short stowing time is essential.

 

  1. PMDC (Permanent Magnet Brush DC) motors:

These motors are comparatively effective, easy-to-control and if correctly built, can last for long, in spite of the commutator or brush wear which is essential in their design. They also show a large speed range which is beneficial in stowing conditions.

 

Current growth:

 

In these day’s PV tracking arrays’ distributed control design, BLDC motors with embedded intelligence can be networked with disordered PLCs having Solar Tracking operation blocks.

 

Arising trends:

 

With superior level integral BLDC motor embedded intelligence, a BLDC motor can cater as main control for hosting and running programs during network interference like returning the tracker to a secure position in a power outage.

 

So, all the above-mentioned motors are the common types of electric motors which can be used in order to track sun power, i.e. solar tracking applications.

Boost The Efficiency Of Your PV System With A Solar Tracker

Solar energy is an excellent renewable energy source, giving sufficient environmental and economic advantages. Nevertheless, it has a significant limitation: a solar panel produces more power when directly facing the sun, but the sun is moving in the sky. That’s why, solar panels turn to be more effective at noon while they get direct sunlight; however, suffer decreased production in the early morning or at the afternoon’s end.

 

Alongside the daytime, other factors also impact the sun’s position in the sky:

 

Seasons:

Regularly sun-hours in a provided location change as per the season, and the usual path considered by the sun in the sky likely to rise in summer and fall in winter.

 

Geographic location:

The sun turns to be lower in the sky for the nations far to the south or north. Besides, in the tropics, the regular path of the sun in the sky is really high and the sun may be located straight upward at noon.

 

With aforesaid factors, it’s just impossible to capture available solar energy in a provided geographic location with a fixed PV system. Modifying tilt amid the year is possible; however, not practical, and the expenses of continuously modifying the system exceed the advantages.

 

Luckily, automatic Solar Tracking technology is now commercially available. Solar tracker gets inspired from nature, and usually, operates like a mechanical sunflower: it can tilt and rotate solar panels so that they can always face the sun directly, at every location, from sunrise to sunset, and all over the year. Geographic location is unimportant, as automatic solar tracker is basically equipped with GPS technology which enables them to measure the ultimate tracking path for each single day of the year.

 

Top advantages of solar tracking technology:

Solar tracking technology can boost the efficiency of the PV cells by up to 30% compare to a ground system and 45% in comparison with a roof-based system. Thus, under the proper conditions, a solar tracking system with 1000W of installed capacity will have the similar output like a fixed roof system with a capacity of 1450W. It has many advantages:

 

- The first investment is eliminated for a new project, as the target of energy generation can be met with lesser solar panels. The current energy output is increased with an existing PV system. The impact, in either case, is that the solar installation provides a bigger return on investment.

 

- The PV system needs less space. It can be a great advantage when the place available for the solar system is not unlimited. Especially, a solar tracking system gives more energy per square meter of solar panels. This technology is predesigned for the standard solar cells’ accommodation, which enables it for integrating simply with several commercial solar panels. Every grid tie-in or battery bank just installed can continue working while a PV system is fixed on a solar tracker.

 

If you want to know more about Solar Tracker or the benefits of solar energy, you can talk to an expert.

Solar PV Panels: Two Basic Types & Their Differences

With the technological advancement, you will find many types of solar PV panels available in today’s market. However, in this article, we will discuss only two basic kinds of solar PV panels which are used extensively.

Two basic types of solar panels:

1) Polycrystalline solar panel and 2) Monocrystalline solar panel

These above-mentioned solar panels are used worldwide; particularly the polycrystalline solar PV panels are broadly used in the installation of the rooftop solar panels.

The differences between the two:

  1. Long-term functionality and warranty:

Different manufacturers offer different kinds of warranty for solar modules, as per the quality and expense of the panels. Generally they offer 25 years of warranty for Monocrystalline panels; however, a perfectly built Monocrystalline panel would have more than 25 years of durability. Besides, for the polycrystalline type, they offer up to 15 years of warranty.

Buying polycrystalline panels with long-term warranty is a smart decision because lots of local solar modules lose their efficiency in only 5 years. So, that time you can replace your panel if it comes under warranty.

Even, some panel makers offer the warranty on solar PV panels’ performance which is more helpful for us. Thereby, buy branded solar PV panels only from authentic dealers and enjoy the long-term performance.

  1. Need of sun tracking system:

Albeit Monocrystalline solar panels are more energy-efficient than the polycrystalline ones, you need the sun tracking system to get the full capacity of them.

The sun tracking system moves the panels at a right angle as per the sunray’s movement to prolong the power production. Well, this is not budget-friendly and thus, every householder doesn’t invest money on it.

  1. Effect of temperature:

Monocrystalline panels work well in high temperature. Besides, polycrystalline ones quit their efficiency at high temperature. However, it’s not a big issue.

  1. Size and energy efficiency:

Albeit compared to polycrystalline ones, the Monocrystalline Solar PV Panels are smaller in size, they are more energy efficient. Nevertheless, many people choose the polycrystalline type to eliminate the expense because they can’t afford the more expensive Monocrystalline panels.

Conclusion:

If you want to install more than 1000 watts, then you should choose Monocrystalline PV panels. Well, the polycrystalline ones are a cost-effective solution for rooftop installation from 100 watts to 1000 watts. But it never means that they are not at all fit for bigger installations.

Comparison of energy effectiveness between Monocrystalline and polycrystalline panels is just about 2 percent. However, nowadays, polycrystalline ones are advancing and thus the difference is no more very big. So, if you are thinking to install solar PV panels in your home, then you can go easily with polycrystalline installations.

You need to keep in mind that there are many local brands are now available in the market. You have to be aware and avoid buying them as they are already rejected by the company. Bring home branded panel and install it to enjoy the hassle-free solar energy and also spare money in your electricity bill.

Sun Tracking Solar Panels: The Most Advanced Solar Trackers

Sun tracking systems, fixed with PV panels, enable the panels to precisely track the solar path across the sky and can enhance the solar power installations’ output by up to 40% in comparison with the stationary panels. Since 1980, the sun tracking devices are in the market; however, their advanced use in both domestic and commercial solar power projects has proved their enhanced capacity of capturing sunray. This advancement, although highly driven by commercial-scale solar installations, has transformed into reduced expenses and more genuine sun tracking solar panels for both householders and small businesses.

 

Stationary PV panels are mounted, either by the householder or the installer, at the ultimate angle for sun-based exposure. At southern regions, the sun declines from 78.5-degree in the summer to 31.5-degree in the winter; however, many rooftop systems depend on an around 52.3-degree declination, enabling for a 22.6-degree roof tilt angle. Sadly, in the northern regions, sunrays’ angle in summer differs from winter by over 60 degree, which implies focusing summer sunray makes winter solar power production slightly uncertain.

 

Sun-tracking solar panels solve this issue. A single-axis horizontal tracker follows the sunray from morning to evening, enhancing solar functionality amid the days of summer and spring when the sun is higher in the sky. However, this doesn’t work well in the northern regions, and so every setting along the horizontal declines the functionality the other 60% of the year.

 

Vertical axis trackers work well at higher climes, allowing solar arrays to track the sunray both at winter and summer declinations. Dual-axis trackers solve both the issues at a time, yet can be very costly including $3,500-$6,500 to the solar installation cost, with the smaller amount adaptable about 125 sq. ft. panels and the bigger helping 225 sq. ft.

 

Some dual-axis trackers depend on both vertical and horizontal pivots followed by a solar controller, same as that utilized for solar telescopes. These are so costly that they are basically used for commercial solar power systems which depend on a parabolic dish with a Stirling engine which generates power onsite, instead of being grid-tied. This exact tracking is also utilized in concentrated solar applications which need perfections for being efficient, in that the focal point on which sunray is controlled in near the reflector’s centre.

 

Solar Trackers can also be classified into active and passive solar trackers. The active one is operated by an electric motor that is activated by a solar controller and the passive one uses compressed gas which creates an imbalance in a chamber while heated by sunray and leads the tracker to tilt.

 

Previously, advancing technology was more important than prolonging outputs. However, now solar installations are profitable in growing the number of KWH supplied to the utility grid. But the advantages result in enhanced technologies in just cost-effectiveness.

 

The requirement of enhanced solar output has driven the solar tracking market from nearly 2%-25% in. In fact, the projections suggest installing more Solar tracking solar panels.

 

This growing dependence on sun tracking solar panels will also cause in advanced tracking technology, as the developers are still trying to get better ways of improvement.

Solar Tracking System

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.

 

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.

 

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.

 

The various types of solar tracking

 

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.

 

What is the point of using solar tracking?

 

There are many vantage points of using the solar tracking system.

 

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.

 

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.

The Uses of 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.  There are single axis solar trackers and then there are dual axis solar trackers which has different uses and different advantages. But they all have to be directed towards the sun to preserve energy.

 

The Basic Advantages One Gets By Using Solar Tracking

 

  • 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.
  • 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.
  • 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.
  • There are different kinds of solar trackers. The most common among them are single-axis 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.
  • 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, there are also some disadvantages too in the crowd of too many advantages. It is always better to know the not so strong points of solar tracking systems before one starts using them.

 

  • The primary thing among them is that, the Solar Tracking Systems are a bit expensive than the stationery counterparts. But this thing is also negotiable. If one wants a good and reliable source of energy, then one has to spend more.
  • These are a bit complicated to handle. So one needs to learn how to handle them properly.
  • Though the maintenance cost is not very high, the maintenance function has to be authenticated on a regular interval, so that it can run smoothly.

Solar Tracking is a very new thing in this arena. So it is always a good idea to know all the plus points and the negative aspects as well before they start using these trackers as providing goods.

Get All The Benefits From A Solar Tracker

Solar PV panels are commonly and elaborately known as Solar Photo Voltaic Panels which are mainly used to gather and save solar energies. These PV panels are used in preserving solar energies in such a way that if it can preserve energies for at least an hour then it can provide solar electricity for a whole year.

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 Tracking systems have trackers because the systems do not produce energy unless directed correctly toward the sun.

There are too many advantages of using Solar PV Panels. The basic advantages are as follows.

  • Solar energy is energy supplied by nature – it is thus free and abundant!
  • Solar energy is especially appropriate for smart energy networks with distributed power generation – DPG is indeed the next generation power network structure!
  • Solar energy can be made available almost anywhere there is sunlight.
  • Operating and maintenance costs for PV panels are considered to be low, almost negligible, compared to costs of other renewable energy systems.
  • PV panels provide clean – green energy. During electricity generation with PV panels there is no harmful greenhouse gas emissions thus solar PV is environmentally friendly.
  • Photovoltaic panels, through photoelectric phenomenon, produce electricity in a direct electricity generation way.
  • PV panels are totally silent, producing no noise at all; consequently, they are a perfect solution for urban areas and for residential applications because solar energy coincides with energy needs for cooling PV panels can provide an effective solution to energy demand peaks – especially in hot summer months where energy demand is high.
  • Solar Panels cost is currently on a fast reducing track and is expected to continue reducing for the next years – consequently solar PV panels has indeed a highly promising future both for economical viability and environmental sustainability.
  • Residential solar panels are easy to install on rooftops or on the ground without any interference to residential lifestyle.
  • Though solar energy panels’ prices have seen a drastic reduction in the past years, and are still falling, nonetheless, solar photovoltaic panels are one of major renewable energy systems that are promoted through government subsidy funding (FITs, tax credits etc.); thus financial incentive for PV panels make solar energy panels an attractive investment alternative.
  • PV panels have no mechanically moving parts, except in cases of –sun-tracking mechanical bases; consequently they have far less breakages or require less maintenance than other renewable energy systems.

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. So, before buying a solar tracker one should be attentive enough to choose the right one.

Solar Tracking Mount – 5 Types to Choose From

PV Panel or Solar Tracking Panel mountings come in varied sizes and shapes, which depend on the purpose. Some of these can be mounted over a pole for ease of tracking the sun all through the day. Read on to know about 5 of the main types of solar tracking mounts, and which one is ideal for your solar panel system.

 

Solar Mount Rail System

 

These can be used for tilted mounts or for flat roof mounts. Tilt mounts can be placed in the horizontal mode or in a horizontal posture, or in a vertical posture known as the landscape mode. This type of rail system is easy and versatile, and offers plenty of choices. Most of the common rail mounts are first attached onto roofs.

 

Side-of-Pole Mounts

 

These are designed for holding anywhere between 1 and 4 modules. Either U-bolts or hose clamps are used to mount these to the pole. Poles of varied sizes can be accommodated to the racks, which can be adjusted for optimal angle of exposure to the sun in 10 ° increments from 15 – 65 °. The size of pole is decided by the number of modules which have to be mounted.

 

Ground Mounts

 

These are possibly the most convenient way to have solar panels mounted. This type of mount looks like an A-frame. It is safest to get this type of structure attached to a slab of cement to keep it secure in position. These types of mounts have been designed to handle anywhere between 1 and 8 solar modules. Such kinds of mounts can be utilized for fixing solar panels to a vertical surface, a roof or to the ground. Some of these mounts are fixed while others have legs which can be adjusted or tilted. There are optional tilt legs of adjustable variety, which area available for panels of varied styles.

 

Vehicle mounted racks

 

These are also referred to as Boat Mounts or RV mounts, and can help you to attach your solar panels to places where and when you require them.

 

Pole Top Mount

 

These can easily be set up atop a strong pole, and are usually recommended for home solar arrays. Pole top mounts can easily be set up, and can keep solar panels off the surface of the ground and out of danger. These can easily be adjusted and can allow convenient removal of snow. But once snowing stops and the sun peeps through again, you will have to sweep snow from the panels. Naturally, you should consider you should have them placed and how high from the ground and how far from your home you would like to get them placed.

 

Roof mounts

 

These are great in appearance, but it is difficult to reach them for the adjustment of the angle. You have to consider whether your roof is sloped enough to allow maximum efficiency of the solar panels. You should also consider whether you need to tilt the legs in order to make your panels face the sun in a more perpendicular posture.

Two Major Types of Solar Tracker Systems

Solar trackers are special devices which consist of PV panels, which allow accurate tracking of the path of sun across the sky. These help raise the output of solar energy installations by up to 40% than stationary panels. Since 1980, these have been there. The increasing use of solar trackers in residential as well as commercial-grade solar energy products is due to improved and more efficient solar trapping technology. The rise is mainly pushed by solar energy installations of commercial-scale, but has helped lower expenses and made tracking systems more dependable for small businesses as well as home owners. Find out about the two types of solar trackers.

 

Single Axis Trackers

 

These devices are classified as single axis or dual axis. Single axis trackers generally move to the west from the east, and these follow the sun’s direction. These have only one angle which is used as the axis of rotation. Such kinds of trackers are able to raise electricity production by over 30%. These offer an efficient, simple and low-cost way to improve the functioning of solar installations.

 

Single axis horizontal trackers can follow the sun’s movement from morning to evening across the sky. These can optimize the performance of the sun during summer and spring seasons, when the sun is in a higher position in the sky. But their usefulness drops the farther one moves northwards, given that the variance of the solar angle is higher between the summer and winter seasons. The performance is diminished during the other times of the year by setting of the sun along the horizontal. At higher latitudes, vertical axis trackers operate better. These allow solar arrays or panels to track the position of the sun during winter as well as summer.

 

Dual Axis Trackers

 

Dual trackers consist of two rotation axis degrees, referred to as the primary axis and the secondary axis. These can move downwards or upwards to cater to the angles of the sun during winter and summer seasons. These also help in additional rise in the output of energy. The designs and angles of both kinds of trackers can be adjusted by engineers.

 

Azimuth trackers or Dual axis trackers can solve simultaneously both issues. However, these can be quite costly and add 3,500 – 6,500 USD to the solar installation cost. Those at the lower end of the price range can accommodate Solar PV Panels of around 125 sq. ft and those at the higher can support 225 sq. ft.

 

Dual axis trackers depend on vertical and horizontal pivots which are controller-guided, just like in solar telescopes. These are very costly and their usage is generally limited to solar energy systems of commercial grade which make use of a parabolic dish along with a Stirling engine which can produce energy in the site itself. This kind of accurate tracking is also utilized in focused solar application, such as mirrors which direct sunlight receivers and transform sun rays into heat. This needs the smallest amount of accuracy in order to be effectual.

The Advantages And Disadvantages Of Using Photo Voltaic Panels

Solar photo voltaic panels which are commonly known as the solar pv panels are the best way to gather solar energies. These panels actually help to preserve solar energy in an hour to a certain amount which can provide the necessity of solar electricity for a year.

 

Before using Solar PV Panels, an individual should be aware of the advantages and disadvantages it has.

 

There are various advantages of using Solar PV Panels.

 

  • Solar energy is energy supplied by nature – it is thus free and abundant!
  • PV panels provide clean – green energy. During electricity generation with PV panels there is no harmful greenhouse gas emissions thus solar PV is environmentally friendly.
  • Solar energy is especially appropriate for smart energy networks with distributed power generation – DPG is indeed the next generation power network structure!
  • Solar energy can be made available almost anywhere there is sunlight
  • Photovoltaic panels, through photoelectric phenomenon, produce electricity in a direct electricity generation way
  • Operating and maintenance costs for PV panels are considered to be low, almost negligible, compared to costs of other renewable energy systems
  • Solar Panels cost is currently on a fast reducing track and is expected to continue reducing for the next years – consequently solar PV panels has indeed a highly promising future both for economical viability and environmental sustainability.
  • PV panels are totally silent, producing no noise at all; consequently, they are a perfect solution for urban areas and for residential applications because solar energy coincides with energy needs for cooling PV panels can provide an effective solution to energy demand peaks – especially in hot summer months where energy demand is high.
  • PV panels have no mechanically moving parts, except in cases of –sun-tracking mechanical bases; consequently they have far less breakages or require less maintenance than other renewable energy systems.
  • Residential solar panels are easy to install on rooftops or on the ground without any interference to residential lifestyle.
  • Though solar energy panels’ prices have seen a drastic reduction in the past years, and are still falling, nonetheless, solar photovoltaic panels are one of major renewable energy systems that are promoted through government subsidy funding (FITs, tax credits etc.); thus financial incentive for PV panels make solar energy panels an attractive investment alternative.

These Solar PV Panels have a few disadvantages too.

 

  • Consequently, intermittency and unpredictability of solar energy makes solar energy panels less reliable a solution.
  • For a continuous supply of electric power, especially for on-grid connections, Photovoltaic panels require not only Inverters but also storage batteries; thus increasing the investment cost for PV panels considerably
  • As in all renewable energy sources, solar energy has intermittency issues; not shining at night but also during daytime there may be cloudy or rainy weather.

In case of land-mounted PV panel installations, they require relatively large areas for deployment; usually the land space is committed for this purpose for a time period of 15 to 20 years or may be longer.

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.

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.

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.