Three of The Most Popular Batteries in South Africa Used for Solar

September 18, 2017/in PHD Blog /by siteadmin

It is no secret that the type of battery used in solar applications have to perform an arduous job and need to meet the demands of heavy cycling, unstable power from the grid as well as irregular full recharging.

There are different types of batteries that are used for the various applications and need to meet a broad spectrum of unique requirements.

When looking at the different types of batteries for your solar power unit, there will always be a number of factors that need to be taken into consideration.

These usually include cost, cycle life as well as installation and maintenance.

Lead Acid Batteries:

Lead acid batteries are often incorporated in renewable energy and is reliably used in off-the-grid solar energy applications; a battery that has been used for solar energy, spanning decades.

Lead acid batteries are typically deep cycle and cost almost half the price of lithium-ion batteries.

Lithium-ion Batteries

Lithium-ion batteries are perhaps the most commonly used in storing technology, no matter the kind of application. These include three types – they are pouch batteries (tablets and smartphones), cylindrical batteries – used for power tools and prismatic,used in electric vehicles.

Flow Batteries

These include the Redox Flow Battery which are fast emerging as an alternative storage option.

The vanadium redox flow battery – also referred to as the VRFB is perhaps the fastest-emerging and technologically-advanced type of battery  used in solar applications.

With so many options and different types of batteries to choose from for your solar, ensure you select the right one for your needs.

Solar Thermal Solutions for Energy Savings

September 11, 2017/in PHD Blog /by siteadmin

The cost of electricity is exponential – and keeping the environment at home or at work pleasant to work in, plus ensuring that water is heated at all times could impact hugely on your utility bills.

In many instances energy saving solutions could prove to be a costly exercise and is very often not affordable by the man-in-the-street.

Perhaps one of the smartest solutions and most effective energy options is the use of solar energy for and the installation of solar thermal solutions for all those energy needs and requirements.

Heating up buildings and water could prove to be a massive source of energy consumption and hugely expensive – by installing solar panels andsolar thermal solutions for heating will assist in saving energy and reducing enormous electricity bills.

About your solar thermal solutions:

Using solar thermal heating solutions is a wonderful resolution to heating water and keeping the environment warm at an affordable cost.

This system captures the heat from the rays of the sun and uses it for heating water.

The solar panels that are placed on the roof absorb the heat and will heat up the solution panels; in return, the solutions will be pumped into the cylinder to heat the water.

By incorporating solar thermal solutions you will be able to fill most of your hot water requirements.

Furthermore, your energy bills will be reduced dramatically through the installation and use of solar and solar thermal solutions.

If You Wonder How Batteries Work

September 4, 2017/in PHD Blog /by siteadmin

For those that have always wondered how solar and batteries work in conjunction with each other, there is a simple explanation.

How batteries work:

Solar panels charge batteries.

Solar batteries work by the conversion of the AC energy that is produced in the solar panels and is stored in the form of DC power in batteries to be used at a later stage.

In some instances, though, solar batteries have their own inverter and therefore are able to incorporate integrated energy conversions.

Larger solar systems will always require a battery that has a bigger capacity for storage of DC power.

When solar batteries are installed as part of a solar system, excess solar electricity for the home will be stored – this is instead of being sent right back to the grid of the power utility.

For those that have solar panels that produce a surplus of solar energy, the excess energy will be used to recharged the battery.

That means as and when the solar panels are no longer producing electricity, the surplus stored power will now be drawn from this surplus for cloudy days or night-time use.

Electricity is only sent back to the grid when the battery is fully charged and you will only draw power from the grid when the battery is flat.

Solar systems that have an excess solar storage will be able to store surplus solar power on-site for later use when the sun goes down and can also offer a short period of backup power when the power goes down.

The above is a brief synopsis on how batteries work.

State-of-the-art Engineer Systems Take Care Of Your DB Board Requirements

August 28, 2017/in PHD Blog /by siteadmin

Only ever use professionals for the installation of intricate, tailored engineer systems when designing your DB board.

For individuals and businesses that need a unique system installed, it is advisable to choose the experts and to find a company prepared to incorporate and design basic design and distribution board layouts for your unique, individual requirements.

Tailored engineer systems will ensure your distribution board, which is also commonly referred to as a breaker panel, electric panel or panel board – are all components of an electricity supply system that distinguishes an electrical power feed into secondary circuits.

The general idea behind a distribution board is the protection of fuses or incorporating a circuit breaker for each circuit, all in a common enclosure.

Under normal circumstances a main switch is installed, and in recent boards, one or more residual current devices or residual current breakers will be incorporated with overcurrent protection, which will also be installed when using state-of-the-art engineer systems for all your DB board requirements.

Use Basic, Simple Guidelines to Ensure You Buy the Right Battery Charging Units

August 14, 2017/in PHD Blog /by siteadmin

Don’t make your battery charging units an afterthought when investing in rechargeable batteries – batteries and chargers go hand-in-glove like peas and carrots.

It is no secret that good battery charging units make an excellent base for batteries that are long-lasting and perform at their peak.

Because users are usually unaware of how important a good power source is and that it could make a profound difference, it is important to investigate battery charging units at the start of a project and not at the , after all the hardware has been completed – this is especially important under adverse conditions.

When investing in battery charging units you need to:

  •         Invest in the right charger for the right battery, which will make a world of difference – and because       many chargers are able to service only one chemistry at a time, ensure that the voltage matches up with the charger.

  •         Charging a larger battery will take a lot longer than a smaller package, with the same applying in reverse.

  •         High wattage chargers will minimise the charging times and there are limitations as to how quickly batteries are charged – bear in mind that extra-quick charging will cause undue stress to the battery.

  •         Lead acid chargers should switch over to float charge when they are full.

  •         Nickel-based chargers need to switch over to trickle charge when batteries are fully charged.

  •         Li-ion will not be able to switch to trickle when full as they are unable to absorb any overcharging.

  •         Bear in mind that lead acid batteries should stay lukewarm, and nickel-based batteries will get warm to the touch only at the end of the charge.

    Always be aware of the temperature of batteries when they are charging..

Battery Tripping Units Will Safeguard Distribution Equipment Against Failure

August 7, 2017/in PHD Blog /by siteadmin

Battery Tripping Units are principally used in industrial areas and applications. This is usually where DC applications in substations and switch rooms are needed for safeguarding power distribution equipment against failure.

Select Battery Tripping Units that are flexible and are customised to suit the unique demands and requirements to fit into a variety of industrial presentations.

The advantages of world-class Battery Tripping Units are numerous as they come complete with fully customised status, indicators, alarms and testing points.

Battery Tripping Units are dependable, robust and fortified and if preferred, remote monitoring could be an option.

Select professionals to install Battery Tripping Units – bear in mind that the key component of any switch tripping unit is state-of-the-art technology that is part and parcel of all applications.

This is how your Battery Trip Unit works:

If a fault is detected within the supply, a Battery Trip Unit is energised, and will trip the system to cut off the supply to the industrial equipment prior to any failure taking place.

It is essential for Battery Tripping Units to be installed properly right from the outset, plus they need to be maintained thoroughly and on a regular basis.

Successful operation of Battery Tripping Units is a direct result of regular and careful maintenance.

Numerous industries enjoy the benefits of Battery Tripping Units which will protect their equipment against faults, plus they will be guarded against equipment failure which could result in catastrophic costs to businesses and employees.

Recharge Your Batteries Using An Intelligent Battery Charger

July 31, 2017/in PHD Blog /by siteadmin

Many individuals refer to battery chargers as being an intelligent battery charger or a smart battery charger. It makes little difference what terminology is used to describe a battery recharger – a device which is used to replenish the energy into a secondary cell by coercing electrical currents through it.

The charging process always depends on the type and size of the battery being charged – dynamics such as how much voltage is required and for how long the battery needs to be recharged for, and once the process is completed, what needs to be done have to be considered – all aspects that are taken into the equation when charging all types of batteries.

Certain batteries have a high tolerance against overcharging and can be recharged by connecting a continuous voltage source or a constant current source, depending on the type of battery; these chargers are simple and need to be disconnected at the end of each charge cycle.

Other batteries require cut-off timers so that the current is curtailed at certain fixed times – this is usually when the battery is fully charged.

There are certain batteries that can be damaged when overcharged – the end result would be reduced battery capacity and a reduction of the life of the battery – in some instances batteries could explode or over-heat!

In some instances, intelligent battery chargers could have voltage and temperature-sensing circuits as well as microprocessor controllers for safe adjustment of the charge current and voltage – these regulate the state of the charge and the cut-off time of charging the battery.

A Switch Mode Rectifier Will Suit A Wide Range of Applications

July 24, 2017/in PHD Blog /by siteadmin

Providing Switch Mode Rectifiers and customising these to suit a wide range of applications is all-important.

Select the one best suited to your needs – with the latest innovative, technologically-advanced air and water-cooled switch mode DC-power models, you simply cannot go wrong.

Keep a look out for the most ground-breaking designs. It is important to use Switch Mode Rectifier suppliers that are professional and able to provide users right across the board with the best installation and operational advantages.

There are many advantages when making use of Switch Mode Power Rectifiers – these include:

  •         The design is compact – use wall, modular and rack structures – because the package is smaller, the               configuration will be neat and unobtrusive.

  •         Switch Mode Rectifiers will save businesses money – they are cheaper to run than conventional SCR             Units.

  •         High switching frequency enables less ripple.

  •         Many businesses will select and enjoy a precisely–controlled high current DC output with <2% AC Vrms             content.

  •         Higher efficiency provides for a faster control loop.

  •         You can now choose from a variety of models.

How your Switch Mode Rectifiers Works:

  •         The Switch Mode DC power supply is a solid state AC to DC power conversion configuration.

  •         This arrangement operates by correcting the AC input to an unfettered DC voltage.

  •         This transitional DC voltage is then cut using pulse-width modulation through an H-Bridge formation into         a high-frequency transformer.

  •         The output of the transformer is corrected and filtered to provide an exact controlled high current output.

PHD Powerhouse – The Myriad Uses of Lithium Ion Batteries

July 12, 2017/in PHD Blog /by siteadmin

Lithium Batteries, or Lithium Ion Batteries, are used in a wide range of applications. In a high-tech world where technology has far-reaching uses from across the board, these batteries have made great inroads.

Lithium ion batteries are found in many devices such as laptops, cell phones, PDA’s and iPods. Because these batteries are some of the most robust rechargeable batteries, they are commonly used in countless devices.

These batteries stand apart from other more commonly-used batteries as they have a high charge density and high cost per unit, and all depending on the design as well as the chemical combinations and compounds in the batteries, the lithium cells can produce voltages ranging from 1.5 Volts to 3.7 Volts.

Take note that disposable lithium batteries differ from secondary lithium-ion and lithium polymer batteries which are all rechargeable – the ions in these batteries are transferred between the anode and the cathode which uses an interchangeable lithium compound instead of lithium metal as the connection material.

Lithium metal is known to be unstable, especially during the recharging stages; therefore research has shifted to a non-metallic lithium battery whereby lithium ions are commonly used and although lithium-ion batteries are a tad lower in energy density than lithium metal, lithium-ion batteries are a safer option provided certain caution is taken whilst charging or re-charging these batteries.

PHD Powerhouse – Lead Acid Batteries

July 7, 2017/in PHD Blog /by siteadmin

Lead acid batteries were invented by French physicist Gaston Planté, and have been around since 1859. These are the oldest kind of rechargeable battery and even though they offer a very low ratio of energy-to weight ratio as well as a low energy-to-volume ratio, they are able to supply high currents which results in cells having a relatively large power-to weight ratio.

Lead acid batteries have changed very little over the years although there have been certain upgrades and improvements in the way they are manufactured over time.

Advancements continue to improve in energy density as well as the life of batteries and dependability.

All lead acid batteries have flat lead plates that are submerged in a pool of electrolytes and the regular addition of water is needed for most of these batteries. In today’s modern world lead-acid batteries are basically low-maintenance which are manufactured with excess electrolyte calculations to make up for any water loss during the life of the battery.

Perhaps the most important aspect of lead acid batteries lies in the recharging of these batteries – a converter/charger with single output voltage will certainly not charge the battery correctly.

Correct and proper charging as well as the correct maintenance of lead acid batteries requires intelligent charging system that will take care of battery issues and reduce the maintenance of your lead acid battery

Watts New​


Types of UPS Systems

in Watts New /by siteadmin

Don’t Get Confused with the Different Types of UPS Systems

There are numerous types of UPS systems and the functions they perform vary from the one to the next, therefore it is unsurprising that there is much confusion regarding which type does exactly what.

Most people think that there are only two types of UPS systems, which include the Standby UPS System and the other being the On-Line UPS system.


Interestingly enough, there are numerous other UPS systems over and above those mentioned, which embrace a wide range of designs, with each performing a different function.

Some of the many varied UPS Systems include:

Standby UPS Systems explained:

Standby UPS Systems only kick in if the main source of power fails – hence the term “Standby” is commonly used.

Perhaps the most frequently utilised UPS system is the Standby UPS which is primarily used for PC’s. With this system, when the primary source of power fails, it will automatically switch to the battery/ inverter as a backup source; when this takes place the transfer switch will automatically change the load over to the battery backup power source.

The many attributes of the different types of UPS systems include efficiency but will always be dependent on the kind of UPS system implemented as well as the quality of the system manufactured.

Look out for the above characteristics when selecting a UPS system; other attributes include reliability, excellence and design functionality.

Surge Protector

in Watts New /by siteadmin

Surge Protection – Which One’s For You?

As far as power surge protectors go – there is the good and there is the bad. Did you know that if you chose the wrong one you could end up damaging all those electrical gadgets you have paid a small fortune for – therefore it might be a good idea to choose the one that has the best fit right from the outset.


Here are four pointers when buying your surge protector:

  • The right number of ports is perhaps number one when buying a surge protector. Although six and eight ports might be an obvious choice – look around a little and find one with 12 ports that are well-spaced so that using them all is easy. The right number of points makes sense – this way you won’t have to use a whole daisy chain of surge protectors.

  • What type of equipment will be plugged into the surge protector? This is a good time to consider what you will be plugging into the surge protector. The one that is appropriate for your individual needs will be the right one and not the one that seems to sport the most features and costs the earth.

  • Another important factor is to check for the UL seal and ensure that your surge protector is a transient voltage surge suppressor and meets with their UL standards which is a prerequisite for it to be an authentic transient voltage surge suppressor. This will ensure that the surge protector you invest in will actually protect the equipment you plug into it.

  • Check the warranty of your surge protector. Some surge protectors will warranty the devices that are connected to it for a portion of the damages if a power surge sneaks through. It is important to see what is and what is not covered. You need to know how to go about finding out how to claim if the surge protector does not live up to its promises.

Solar Panels

in Watts New /by siteadmin

Solar Panels power low cost housing in SA

It is no secret that South Africa faces an enormous challenge when it comes to housing its poor and supplying electricity to the many homes and businesses that are currently using power and those that are being built.

Although there are numerous initiatives under way, there is still a backlog of 2.3 million homes.


An integral part to the construction of newly-built homes – particularly RDP and low-cost housing, is the provision of basic services of which solar technology plays an essential role, as this is a cost-effective solution in providing energy to South Africa. Solar power assists the supply of electricity which is a vital part of supplying hot water and electricity to homes from right across the board.

About Solar Panels in South Africa:

Solar panels in South Africa and solar power remain the most popular type of renewable energy at present, because of the abundant amount of sunshine South Africa enjoys. Solar panels are both reliable and cost-effective, too, which makes this a popular alternative to power off the grid. Solar Panels produce electricity from photons which can be found in light radiation.

This translates into power even on days that are cloudy although the most electricity is produced on bright and sunny days. The initial cost of solar panels might seem high at first but over the long haul the benefits are numerous and soon will make up for the initial installation fees. Solar systems reduce CO2 levels which makes it an eco-friendly alternative.

Because solar technology is a type of renewable energy it means that it is sustainable and green; in other words,  it boasts being one of the most widely held forms of renewable energy in this country.

Did you know that most areas in South Africa enjoy in excess of 2 500 hours of sunshine annually?

The average solar levels range between 4.5 and 6.5 kWh/m2 daily – this is according to the DoE (the South African Department of Energy). This is compared to 150 W/m2 in certain parts of the USA, as well as in the region of 100 W/m2 for Europe and the United Kingdom.

The influences that usually affect the choice of solar equipment include how much power is required, what will be running off the solar system and how much the budget is for installing solar panels in South Africa.

Solar Regulators

in Watts New /by siteadmin

Solar Regulators are also called Charge Controllers

A solar regulator (also referred to as a charge controller) is a small box that consists of solid state circuitry which is strategically placed between solar panels and the solar batteries.

The function of the solar regulator is to be utilised in conjunction with stand-alone systems that are off the grid or a grid-connected solar system that combines a backup battery bank.


For a grid-connected solar power system that does not make use of batteries, a solar regulator is not required.
Today’s technologically-advanced solar regulators are extremely efficient and will be able to out-strip any three-stage mains power battery chargers.
The function of a solar regulator include:

  • The primary function of the solar regulator is to regulate the incoming charge from the panel that flows into the deep cycle battery bank.

  • This is to prevent the batteries from becoming overcharged.

  • Regulators can also offer direct connectivity to appliances while recharging batteries.

  • This will bypass the battery bank although the batteries will be charged simultaneously.

How to choose your solar regulator:

  • First and foremost – it is important to check the amp ratings of your solar panels.

  • Once you have tallied up the figures, this should give you an idea of the minimum size charge controller required.

  • If you think your solar system will be added onto sometime in the future, it might be best to plan ahead for future growth.

  • This will save you money in the long term when adding more solar panels onto your system down the line.

Explaining low voltage disconnect:
Once the voltage drops below a certain point and they continue to draw power, this will cause untold battery damage.
Solar regulators should be equipped with LVD – Low Voltage Disconnect features to avoid damage.
LVD will monitor battery levels and will automatically disconnect the load that is connected to the battery if the voltage levels drop.
You need never maintain your solar regulator – although it might be a good idea to check the wire connections from time to time to ensure they are taut and free of corrosion.
It is also advisable to mount your solar regulator away from direct sunlight and heat where there is good air flow.
For safety purposes always ensure there is a suitable fuse between the solar panel and thesolar regulator.
It is important to acquire a professional’s opinion before ordering any equipment.

Solar Batteries

in Watts New /by siteadmin

Solar Batteries Are Vital For the Function of Solar Panels

For individuals and businesses that are not too sure how Solar Power and Solar Panelswork, this guide will explain how it works.

Solar Panels, together with inverters produce power in proportion to the Solar Energy from the sun. This energy is then converted into electricity.



When appliances utilise power the Solar System subsidises this demand, and if the Solar System has excess then the surplus is exported to the utility grid.

Adding Solar Batteries to the equation means that you now have a place in which to store the surplus solar energy.

This excess energy is usually stored until it is need which is usually at night or on cloudy days when there is little solar input.

The inverter manages the flow of the power to ensure that you maximise the use of this free solar energy and don’t waste any surplus.

So in other words, a solar battery is in effect a storage unit where all the excess energy which is generated during sunshiny days is stored.

As far as Solar Batteries are concerned, there is never a one-size-fits-all scenario – but the best way moving forward is to ensure that your solar batteries are of a high quality.

Different solar batteries are used for varying purposes to ensure that the right product for the right application is used.

Lead Acid Batteries:

  • Because Lead Acid batteries contain large amounts of electrical energy, they are capable of discharging very quickly if any form of conductor is placed across their terminals.

  • Lead Acid batteries contain sulphuric acid which is corrosive.

  • Lead Acid batteries give off hydrogen when they are charged which when mixed with air, can become explosive and can even be ignited by a tiny spark, therefore handling these with caution is advisable.

  • Lead Acid cells have a minimal voltage of about 2 V – this is all depending on the state of charge.

  • A battery usually consists of several cells that are connected together in a series to produce sufficient Voltage – this is usually 12, 24 or 48 Volts.

Deep cycle cells:

A Deep Cycle Cells refers to a battery being charged with energy during sunny days.

Solar Batteries, as we have deduced, are therefore vital for the optimal function of Solar Systems.

Invest in Home Solar Systems

in Watts New /by siteadmin

Many people in South Africa are making use of home solar panels to generate power.

For example, in Alexandra Township in Johannesburg, as is the case with many low-cost housing developments these houses are being fitted with solar panels for hot water geysers.

These might seem to be expensive to install at first, but they can and will save you a lot of expense in the long-term.




The internal working parts of power inverters and UPS, inverts the incoming DC voltage into sinewave waves – but due to the complexity of these parts, the result would be that investing in power inverters could prove to be a costly exercise.

Sine waves have been re-created to save costs; modified sinewave inverters as well as UPS systems simply switch from the DC supply between positive and negative poles to offer you a simulated sinewave wave.

Modified sinewave inverters and UPS systems are inexpensive to manufacture but could be very costly if these are installed into the wrong equipment.

Anything with a high inrush or high speed control or equipment with sensitive data should be connected to the correct power inverters to avoid damage.

It is imperative to take special note that certain UPS systems – most particularly the 600 VA which falls under the desk-type UPS systems, are included in the modified sinewave categories. Because computers only run off power inverters for short periods of time when power outages occur, they are far less likely to be damaged from modified wave forms.

For those that don’t know the difference – there are certain distinct advantages of pure sine wave power inverters over modified sine wave power inverters.

We make use of energy every single day of our lives and in every single aspect in a modern world. In South Africa electricity supply is barely keeping up with the pace and demand, and coal-fired power stations are experiencing issues plus they cause pollution in an already-polluted world.

But there is hope on the horizon, such as using and installing home solar systems, making use of the abundant sunshine we are so lucky to have.

The sun is a significant font of energy without which no life would be possible on Earth. The energy from the sun can be used to generate electricity in a more sustainable and pollutant-free process – more so than coal-fired power stations that are at present generating most of our energy.

But heating water through the use of solar power is certainly not new to man. The ancient Greeks, for example, were building houses in ways that the sun could heat them during cold winter months.

Solar or photovoltaic cells are specifically designed to capture the rays of the sun and directly convert them into electricity. Furthermore, solar cells have been used for many decades to provide power to satellites, too.

A solar cell consists of two thin plates made of a semi-conductive material such as silicon with a layer of chemicals on their surface and when sunlight falls on the cells, electrons are released from the silicon and they move over the layer of chemicals, generating an electric current.

South Africa has among the highest levels of sunshine in the world, but very little has been done to use its power to generate electricity. This is obviously cause for concern as scientists believe solar energy could become the only alternative when Earth’s fossil fuels are exhausted.

It has been predicted that more than 2.5 % of the world’s electricity needs will be provided by solar energy by 2015.

Installing home solar systems this summer is perhaps one of the most logical ways forward.

Power Inverters

in Watts New /by siteadmin

Always Ensure You Install Power Inverters Correctly

All AC equipment that can be found in retail stores has been specially designed to run off a pure sinewave wave form – this includes equipment such as motors, computers as well as certain lights, not to mention the numerous other sensitive electrical paraphernalia.

The standard AC mains that we get from Eskom is of an untainted sinewave nature – this means that these waves experience very little distortion to any outside interference which includes lightning and massive AC loads.





The internal working parts of power inverters and UPS, inverts the incoming DC voltage into sinewave waves – but due to the complexity of these parts, the result would be that investing in power inverters could prove to be a costly exercise.

Sine waves have been re-created to save costs; modified sinewave inverters as well as UPS systems simply switch from the DC supply between positive and negative poles to offer you a simulated sinewave wave.

Modified sinewave inverters and UPS systems are inexpensive to manufacture but could be very costly if these are installed into the wrong equipment.

Anything with a high inrush or high speed control or equipment with sensitive data should be connected to the correct power inverters to avoid damage.

It is imperative to take special note that certain UPS systems – most particularly the 600 VA which falls under the desk-type UPS systems, are included in the modified sinewave categories. Because computers only run off power inverters for short periods of time when power outages occur, they are far less likely to be damaged from modified wave forms.

For those that don’t know the difference – there are certain distinct advantages of pure sine wave power inverters over modified sine wave power inverters.

These include:

  • The output voltage wave form is pure sine wave with very low distortion and pure power such as the electricity supplied by Eskom.

  • Certain appliances and equipment will enjoy better speed – these include motors, microwave ovens as well as other devices – furthermore, these appliances will also enjoy running smoother, cooler and quieter.

  • Crashes in computers will be reduced as well as glitches in sensitive office equipment and a reduction in the noise in monitors will also be noticeable.

  • Some of the devices that will not usually operate with modified sine wave power inverters include:

Laser printers, some laptops, pellet stoves with microprocessors, digital radio clocks, certain power tools, to mention a few of the many.

UPS Systems

in Watts New /by siteadmin

Connecting Your Expensive appliances To Your UPS Systems

If you are considering selecting surge protection for your expensive appliances, you need to ensure that you don’t make any vital errors when connecting your expensive appliances to your UPS Systems.

The wrong selection of UPS Systems could impact negatively on the daily running of your personal life and also of your business, and in this economic climate it is important to ensure that every single cent is accounted for.



When investing in surge protection for your appliances, many will not receive the kind of back-up they need from your inverter which makes them vulnerable to power surges, dips and hikes as well as brown-outs and black-outs.

Your expensive high-end equipment that needs to be protected through the use of your UPS Systems usually include electronic access-control equipment, garage doors, electronic gates, booms, alarm systems, fridges and freezers in the home as well as commercial and industrial refrigeration, air conditioning units and many others.

Installing UPS Systems is imperative (Uninterruptible Power Supply Units), as this will give you peace of mind in the knowledge that your business and equipment will function regardless of the type of power disruptions may or may not occur.

It is best to avoid hooking your heaters and air-conditioning systems to your UPS systems.

For those that are not familiar with the size of UPS systems, here is a short list of what you should be looking at:

  • Your PC with scanner and/or printer – recommended UPS size – 1KVA

  • Two or three PC’s with scanners and/or printers

Home Solar Systems

in Watts New /by siteadmin

There are many Questions Asked Regarding Home Solar Systems

For those looking for an alternative way of powering their homes in South Africa, the answer is easy – home solar systems!

Thing is, how exactly does a home solar system work?

  • A PV – otherwise known as a Photovoltaic Solar System, consists of solar panels, racks for placing the panels onto your roof, an inverter and wiring.

  • From sun-up to sun-down the solar panels generate electricity which is transmitted to an inverter.

  • The inverter in turn then converts this DC power into AC (Alternating Current) which is the standard used in most households.

  • AC power is then delivered directly to the main electrical service panel of your home.



Another oft-asked question is – how long will your solar system last – are you in for the long or the short-haul?

 Systems can last anything from twenty five to forty five years, although some have been known to last even longer than this.

Does shade and grey days affect the efficiency of your home solar system?

Because solar operates at optimal output when the sun shines brightly, shading could prove to be an issue.

Unlike the early days of solar power when systems had to be sized for peak loads, a grid-connected PV system will seamlessly switch to draw from the utility grid when power is required.

Your solar system has been designed with an annual production target; in other words it has been specifically created to average out sunnier days with cloudy days; a win-win set-up all round.

Will the value of your home be augmented by installing a home solar system?

 In today’s world where power is a challenge, any improvement will add value to your home. For those individuals planning to go off the grid entirely, this could be a cost-saver and will ensure your lights are left on even when the power goes off in your neighbourhood.

Statistics have indicated that homes that are driven by solar appreciate about 17% and sell in the region of about 20% faster on average.

Typically a return on investment is in the region of about 15 to 20%.

Once you have made a decision to install home solar systems, you need to ensure that the system is in proportion to the amount of power you use.

The Need for Solar Batteries

in Watts New /by siteadmin

If you believe in all things green or have decided to go off the grid due to convenience, care and cost – whichever way you view the situation you are going to need a little knowledge on how solar batteries will work for you and your solar system.

Many home owners that are planning on installing a solar panel system don’t usually concern themselves with the many choices of solar batteries that are available. But there are many home owners as well as other solar energy users who are planning on installing a solar energy system that will be 100% off the grid or that at the very least, have emergency backup power. If this is the case you will most certainly need to learn a little about solar and be able to navigate your way around solar battery systems.


When properly managed a solar electricity storage system can prove to be a reliable and affordable method of powering your home or business.

Grid-Tie and Off-Grid Battery Systems:

Did you know that there are two different kinds of solar battery storage systems – these include grid-tie with battery back-up and off-grid?

Off-grid systems are independent of the grid. When it is dark and on cloudy days, off-grid solar homes rely on their solar batteries for power.

Peak generation of solar electricity happens around about midday with peak consumption usually happening at night when lights and appliances are turned on.

To power a home reliably; a battery bank must be able to efficiently charge in a couple of hours of intense sunlight and discharge during the night-time hours.

Solar batteries designed for this environment are referred to as deep-cycle batteries.

The most common solar deep-cycle batteries are referred to as being flooded, gelled lead-acid batteries and AGM.

These are three types of solar batteries that are able to discharge repeatedly, yet have low discharge rates.

Grid-tied systems with battery backup only use batteries when there is a power outage, but during normal operation, DC power form the solar panels is passed through a grid-tie inverter that converts it to AC power.

Always check with your supplier.