Solar energy is the term used to describe the light and heat produced by the sun. Solar power is the conversion of sunlight into electricity. Direct conversation of sunlight into electricity is performed by Photovoltaic (PV). The word ‘photovoltaic’ is composed of two terms: “Photo” which means light and “Volt” which is the unit used to measure electric potential.
Grid-tied electrical system, also called tied to grid or grid tie system, is a semi-autonomous electrical generation or grid energy storage system which links to the mains to feed excess capacity back to the local mains electrical grid. When insufficient electricity is available, electricity drawn from the mains grid can make up the shortfall. Conversely when excess electricity is available, it is sent to the mains grid.
Direct Current (DC) electricity from sources such as hydro, wind or solar is passed to an inverter which is grid tied. The inverter monitors the alternating current mains supply frequency and generates electricity that is phase matched to the mains. When the grid fails to accept power during a “black out”, most inverters can continue to provide courtesy power.
Modern hybrid systems combine solar and battery storage in one and are now available in many different forms and configurations. Due to the decreasing cost of battery storage, systems that are already connected to the electricity grid can start taking advantage of battery storage as well. This means being able to store solar energy that is generated during the day and using it at night. When the stored energy is depleted, the grid is there as a backup, allowing consumers to have the best of both worlds. Hybrid systems are also able to charge the batteries using cheap off-peak electricity (usually after midnight to 6 am)
One of the main types of the solar power system is Off-grid, also known as a stand-alone power system (SAPS). This option is best when you face frequent power cuts or you do not have a power connection at all. The Energy which is created by the Solar Panels gets stored in the batteries which are connected to an off grid inverter.
FreshTec can help you choose the best system size and battery bank which meets your requirements. The Solar Off grid inverter allows you various options to choose from to allow you to charge whether you want to charge your batteries first or you want to use the solar power directly through the Inverter when the sun is shining. This will help you save money by prioritizing the use of Solar energy instead of the Grid.
Off grid Solar inverters should be integrated with special Solar Batteries which last longer than the normal inverter batteries
It works by generating electricity from solar panels and using it to charge a solar battery via a charger controller. That electricity is then converted using an inverter so that it can power the home or business appliances. By saving the electricity in a solar battery, it is possible to run home with solar energy, even at night or during times when there is less sun exposure.
In an off-grid system there is no public electricity grid. Once solar power is used by the appliances in your property, any excess power will be sent to your battery bank. Once the battery bank is full it will stop receiving power from the solar system. When your solar system is not working (night time or cloudy days), your appliances will draw power from the batteries.
For times of the year when the batteries are low on charge and the weather is very cloudy you will generally need a backup power source, such as a backup generator or gen-set. The size of the gen-set (measured in kVA) should to be adequate to supply your house and charge the batteries at the same time.
Other solar hybrids include solar-wind systems. The combination of wind and solar has the advantage that the two sources complement each other because the peak operating times for each system occur