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Jamaica

An Analysis of Jamaica’s budding solar market

Are you a solar installer or a professional in the solar sector? Do you intend to invest your time and finances in Jamaica’s nascent solar market? I can confidently tell you that you will be making a wise choice if you decide to pursue affluence in Jamaica. The Caribbean Island nation’s government has supported its solar market since 2012.

Currently, a huge percentage of Jamaica’s energy supply stems from fossil fuels. However, the government has intensified its efforts to promote the adoption of solar and other forms of renewable energy. Recently, Jamaica’s Prime Minister announced that his government is planning to commission several solar projects.

These projects are meant to help the country attain its target of a 20% renewable energy mix by 2030. Also, the government plans to revise its national energy policy to encourage private sector involvement in solar energy adoption. Essentially, you stand a chance of making it big in this market if you play your cards right.

Jamaica’s solar equipment production and supply capacity

There are several solar equipment manufacturers and suppliers operating within the Jamaican market. However, Solarfeeds is your best option when it comes to solar equipment procurement. As a leading e-commerce marketplace for solar equipment, we grant you access to some of the world’s leading brands. If you are looking for quality and affordable equipment, we are your go-to partner. Just visit our inquiry page and place a request for quotes.

Ports and logistics services in Jamaica      

Jamaica has several sea ports. Consequently, you will not find it challenging to import quality solar equipment if the need arises. Once the equipment arrives at the port, you can safely deliver it to the project site using any of Jamaica’s leading logistics companies.

Electric Breaker used for below projects in Jamaica

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Electric Breaker

Electric Breakers

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).

Final Thoughts

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.

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