Papua New Guinea
A brief assessment of the solar market in Papua New Guinea
An estimated 12% of Papua New Guinea’s population has access to on-grid electricity. The country’s power supply network is extensively unreliable, and blackouts are the order of the day. It relies heavily on oil and diesel, even though it has a huge potential for hydro and solar power generation.
Currently, 2.5 Megawatts worth of solar projects are underway across three solar plants in Papua New Guinea. Although on-grid solar lighting is a course for concern, the country has emerged as one of the world’s largest off-grid solar markets. To be precise, 60% of households in Papua New Guinea rely on off-grid solar for daily lighting needs.
The government of Papua New Guinea targets to electrify 70% of the country by 2030. There is no doubt that solar energy will play a critical role in the attainment of this goal. Therefore, solar installers and solar experts should expect vast opportunities in Papua New Guinea’s solar market.
Papua New Guinea’s solar equipment supply capacity
There are several reputable solar equipment suppliers in Papua New Guinea. Most of these companies seek to provide mobile lighting solutions and off-grid power. Fortunately, the Solarfeeds family has got you covered. Our e-commerce marketplace serves all solar installers and professionals by providing access to the world’s leading solar equipment brands. You can get competitive quotes just by placing a request via the website’s inquiry page. Is this not easier than roaming around requesting quotes?
It is also not difficult to import solar equipment to Papua New Guinea. The country boasts of an extensive network of seaports. A carefully selected logistics company can then deliver the equipment to the project site.
Wholesale Shunt Regulator for PV Systems
Essentially, a shunt regulator — also known as a shunt voltage regulator (aka. charge controller)— is a form of regulator where the regulating element shunts the current to ground. By maintaining a constant voltage across its terminals, it takes up the surplus current to maintain the voltage across the load.
In terms of the basic operation of a shunt regulator, the load is operated with a resistor in series with the voltage source and the shunt regulator in parallel with the load. In order to keep the voltage across the load constant, a level of current must be drawn through the series resistor to maintain the required voltage across the load. The load will take some, and the remaining current is drawn by the shunt voltage regulator.
The circuit is designed so that at maximum load current, the shunt regulator draws virtually no current, and at minimum load current, the shunt voltage regulator passes the full current. As a result, it can be seen that shunt regulators are inefficient because the maximum current is drawn from the source regardless of the load current, i.e. when there is no load current.
Because of the purpose of the shunt regulator, this device has been considered as an essential element within the linear power supply technology.
Zener Diode Shunt Charge Controller
One of the most common and simple forms of shunt regulator is the simple Zener diode regulator circuit.
Its mechanism is very straightforward. Once over its small minimum current, the Zener diode maintains an almost constant voltage across its terminals. The series resistor drops the voltage from the source to the Zener diode and loads. As the Zener diode maintains its voltage, any variations in load current do not affect the voltage across the Zener diode. It takes up the current variations required to ensure the correct drop across the series resistor. In this way, it shunts sufficient current to maintain the voltage across its terminals and hence the load.
In the shunt voltage regulator circuit, the Zener diode must be capable of dissipating the power from the maximum amount of current it can handle. This is most likely to be a little more than the maximum current supplied to the load as the Zener diode will need to pass all the current when the load current is zero. Therefore, the total maximum current that will be passed by the diode is the load current plus an allowance for current to maintain the reference voltage when the load is taking its maximum current.
It should also be noted that for the shunt regulator circuit, the series resistance is comprised of the series resistor value, plus any source resistance. In most cases, the value of the series resistor will dominate and the source resistance can be ignored — but this may not always be true.
Why Buy Wholesale Shunt Regulators for PV Systems from Us?
Our website lists all sorts of shunt regulators for PV systems from established and well-respected manufacturers and brands all over the world. As a result, you can expect that the shunt regulators that we offer are of the best variety. They are characterized by numerous remarkable features, such as higher efficiency, sturdy construction, and a longer lifespan. Therefore, all the shunt regulators that we offer will undoubtedly have the ability to fulfill all your solar power needs.
If you want to buy shunt regulators for PV systems at low wholesale prices, then go through our website to explore products with profitable deals. You can also choose to send in your query at [email protected]