Puerto Rico: The state of the solar market
Like most territories in the Caribbean Islands, Puerto Rico struggles to provide constant electricity via conventional sources. However, it has made some tremendous strides in solar energy exploitation in the last couple of years. Currently, the Island targets to attain 40% renewable energy by 2025 and 100% by 2050. This target is mainly responsible for Puerto Rico’s solar market growth over the last couple of years.
In 2017, the Island had a utility-scale installed solar capacity of 127 Megawatts and 88 Megawatts of small-scale installed capacity. In February 2021, Puerto Rico’s electric power authority requested proposals to generate 1 Gigawatt of renewable energy capacity. This reveals that the Puerto Rican solar market is poised for further growth.
What does this growth mean for you as a solar installer or any other photovoltaic professional? Well, the development of any market always comes with vast opportunities. So, it’s accurate to say that several lucrative opportunities are waiting for you in Puerto Rico’s budding solar market.
Does Puerto Rico have the capacity to produce and supply solar equipment?
Even though Puerto Rico is still a young solar market, it enjoys a substantial presence of solar equipment manufacturers and suppliers. If you are searching for a reliable equipment supplier in Puerto Rico, Solarfeeds has got you covered. We help prospective clientele access leading solar equipment manufacturers and suppliers in different markets, including Puerto Rico.
The best thing about choosing to work with Solarfeeds is that you don’t have to move around requesting quotes. A simple visit to our inquiry page solves all your problems. Moreover, we guarantee quality and affordable equipment.
Ports and Logistics services in Puerto Rico
Puerto Rico boasts of several major ports. It also has one of the most advanced logistics infrastructures in the Caribbean Islands. Basically, the country is every solar installer’s and photovoltaic professional’s dream-come-true.
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.