A review of Aruba’s solar market
Two years ago, the Aruban government pledged to transition to 100% renewable energy. Unfortunately, the country has not made any significant strides towards achieving this goal. The South American nation currently has a total energy installed capacity of 287 Megawatts. Renewable energy accounts for only 11.5% of the country’s aggregate installed capacity.
As of early 2021, Aruba’s installed solar capacity stood at 3.4 Megawatts. This figure is pretty low considering that the Island nation has immense solar potential. Nevertheless, things are looking up for Aruba’s solar market. The government recently implemented some policies and regulatory frameworks that will undoubtedly fuel the growth of the country’s nascent solar market.
Some of the policies worth noting include tax reduction, tax exemptions, and green public procurement frameworks. Aruba’s solar market is poised to become one of the most lucrative markets in South America if the government keeps supporting it. Are you a solar installer or a photovoltaic professional searching for opportunities? Aruba’s budding solar market is worth some consideration.
Aruba’s solar equipment supply capacity
There are a substantial number of local and multinational solar equipment suppliers serving the Aruban market. They offer different categories of solar equipment, including solar panels, solar inverters, and charge controllers, to name a few. Do you need a reliable, pocket-friendly supplier?
Solarfeeds grants you access to leading equipment suppliers serving the Aruban market. It is time-consuming and challenging to traverse the country requesting quotes from various suppliers. The Solarfeeds family understands that time is a valuable commodity. Consequently, our inquiry page offers a one-stop solution.
Aruba’s ports and logistics services
There are several ports in Aruba that facilitate the movement of goods to or from overseas markets. Therefore, you can opt to import equipment from any of the world’s leading solar markets if the need arises. Considering that the country’s infrastructure and logistics services are pretty advanced, you can comfortably deliver equipment to the project site.
When installing a solar panel system, you have to be familiar with the electric breakers and how it works with a solar PV system to avoid future electric problems. The electric breaker is one of the main components of a solar power system that provides safety mechanisms. If ever the electrical wiring of your system has too much current flowing through it, these breakers can easily cut the power until your solar installer can fix the system’s problem.
For today’s article, we will discuss electric breakers and their function in solar photovoltaic systems.
What is an Electric Breaker?
An electric or circuit breaker is an electrical switch designed to protect electrical circuits from damage caused by overloading of current or a short circuit. The basic function of an electric breaker is to prevent the current flow once protective relays detect a fault in the system.
Although it is frequently interchanged with a fuse, which is the simplest Over Current Protection device (OCPD) in electrical circuits, a circuit breaker, is a much-evolved type of device that interrupts the current flow. The main difference between the two is electric breaker is resettable and the fuse is not. The fuse sacrifices itself while protecting the system to overheat, while the circuit breaker can withstand hundreds and thousands of operations. Another difference is that electric breakers are used with relatively higher currents.
Components of Circuit Breaker
A circuit breaker system is composed of three parts. These three components are the sensing system, relay, and the combination of contacts and the contact actuator. A sensing system is responsible for detecting an overload situation, while a relay is responsible for transferring the information to the switching arrangement, and the combination of contacts and the contact actuator. This electric arrangement is usually observed in power transmission and distribution networks dealing with very high currents, voltages, and powers.
Circuit Breakers Calculation in Solar Panel Systems
When connecting circuit breakers to the PV system, you have to follow the recommended calculations to avoid future problems and damage to the entire system. The recommendations for using overcurrent protection devices including circuit breakers in solar modules against overloading conditions are given in IEC 60269-6 (volume 6 of IEC 60269-6) and also UL 248-19.
For circuit breakers, IEC recommends a 20% and 25% margin in voltage and overload current. Most of the time, the ratings are specified by the solar manufacturers at given ambient conditions. If the temperatures exceed this given value, derating must be applied according to the manufacturer’s specifications.
When it comes to breaker sizes for solar panels, NEC requires the breakers to be sized at 125% of the inverter’s rated output. So a 7680W inverter that outputs 240V, outputs 32A (7680W ÷ 240V = 32A). That requires a 40A breaker (32A x 125% = 40A).
If you owned a solar panel system at home, you have to understand how circuit breakers work to prevent catching fires at home. These devices are one of the major components of the PV solar system as they protect the system wiring from getting too hot and accidentally catch fire if short circuits occurred. Thus, understanding the breaker itself and its proper calculations in the PV system should be done.