Solar energy refers to energy from the sun. The sun has produced energy for billions of years. It is the most important source of energy for life forms. It is a renewable source of energy unlike non- renewable sources such as fossil fuels. Solar energy technologies use the sun’s energy to light homes, produce hot water, heat homes and electricity.
Grid-tied solar system (alternating current) This type of system requires no storage equipment(i.e. batteries).
stand-alone grid-tied solar system (alternating current) This type of solar energy system is the same as the grid-tied system above except that battery storage is added to enable power to be generated even when the electricity grid fails. The additional cost to the customer can be quantified against the value of knowing that their power supply will not be interrupted.
Stand-alone off-grid solar system without energy storage (direct current)
In this configuration (i.e. without any energy storage device), the PV system output is dependent upon the intensity of the sun. The more intense, the greater the output. In this simple system, the electricity generated is used immediately. Therefore, the application must be capable of work on both direct current (DC)
Major Components of a solar panel system:
Photovoltaic Modules (aka solar panels, solar electric panels)
The PV modules are the individual building blocks for providing power from the sun. They are typically made from silicon cells, glass, and aluminum. PV modules can vary in type, size, shape, and color
Racking/Mounting System for PV modules
The mounting system for the PV modules includes the hardware to permanently affix the array to either a roof, a pole, or the ground. These systems are typically made of aluminum and are customized to the mounting surface and the model of module used
A combiner box is an electrical box where series strings of PV modules are then spliced in parallel. This is also the place where the PV series string fuses or circuit breakers are located.
A charge controller is a device that regulates the amount of current the PV modules feed into a battery bank. Their main function is to prevent over-charging of the batteries
Grid Tie with Battery Backup Inverter
A grid tie with battery backup inverter takes current from batteries (DC) and turns it to alternating current (AC) to run any common loads like an off-grid inverter.
Batteries store the energy in renewable energy systems.
Solargy Power, our affiliate is active in this space.(www.solargypower.com)