Solar Inverter
A solar inverter or photovoltaic (PV) inverter is a type of power inverter which converts the variable direct current (DC) output of a photovoltaic solar panel into a utility frequency alternating current (AC) that can be fed into a commercial electrical grid or used by a local, off-grid electrical network. It is a critical balance of system (BOS)–component in a photovoltaic system, allowing the use of ordinary AC-powered equipment. Solar power inverters have special functions adapted for use with photovoltaic arrays, including maximum power point tracking and anti-islanding protection. A solar inverter is one of the most crucial parts of a solar power system. A solar inverter converts the energy output from solar panels into a usable electricity form, to be utilised in your home or workplace.
"Solar power is going to be absolutely essential to meeting growing energy demands while staving off climate change.”Ramez Naam
How does a solar inverter work?
A solar inverter works by taking in the variable direct current, or 'DC' output, from your solar panels and transforming it into alternating 120V/240V current, or 'AC' output. The appliances in your home run on AC, not DC, which is why the solar inverter must change the DC output that is collected by your solar panels.
To be a little more technical, the sun shines down on your solar panels (or photovoltaic (PV) cells), which are made of semiconductor layers of crystalline silicon or gallium arsenide. These layers are a combo of both positive and negative layers, which are connected by a junction. When the sun shines, the semiconductor layers absorb the light and send the energy to the PV cell. This energy runs around and bumps electrons lose, and they move between the positive and negative layers, producing an electric current known as direct current (DC). Once this energy is produced, it is either stored in a battery for later use or sent directly to an inverter (this depends on the type of system you have).
When the energy gets sent to the inverter, it is in DC format but your home requires AC. The inverter grabs the energy and runs it through a transformer, which then spits out an AC output. The inverter, in essence, 'tricks' the transformer into thinking that the DC is actually AC, by forcing it to act in a way like AC – the inverter runs the DC through two or more transistors that turn on and off super fast and feed two varying sides of the transformer.
Single Phase String Inverter:
This series on-grid inverter power ranges from 1.5-10.5kW, which is suitable for the residential rooftop applications. It comes with one or two MPPT, applicable to single alignment and multiple alignments rooftop. What’s more, the new product- SUN-10.5K-G is one of the maximum power models of single-phase on-grid inverter on the market. Solution and service by Deye - professional single phase string inverter manufacturer.
This series on-grid inverter power ranges from 1.0 – 6.2kW, which is suitable for the residential rooftop applications. What’s more, the new product- TIE-6.2K-G is one of the maximum power models of single-phase on-grid inverter on the market. Solution and service by vsolesolar – professional.
Three Phase String Inverter:
three-phase on-grid inverter power range is from 4kW to 110kW with 230/400Vac. So, it can connect to utility grid(230/400V) directly without transformer. All the inverters are equipped with LCD display and buttons, easy operation and maintenance specially for remote and poor areas
For the SUN-110K-G03, it has 6 MPP trackers and 24 pairs of strings. The Max. DC input power is up to 150kW. So, it can save equipment investment via connecting more PV modules. Solution and service by leading 3 phase string inverter manufacturer.
This series on-grid inverter power ranges from 5.0 – 110KW, which is suitable for commercial rooftop applications. The new product 110KW is one of the maximum power models of a three-phase on-grid inverter. Solution and service by Vsolesolar – professional.