SunTech Power

Frequently Asked Questions

What is the difference between on-grid/grid-tie and an off grid system?

An on-grid or grid-tie system is interconnected with the utility grid. This type of system does not incorporate a battery for energy storage. Instead, any excess energy generated by the solar panels is fed back into the grid, effectively using the grid as a storage mechanism.

Conversely, an off-grid system operates independently from the utility grid. It includes a battery storage system to store excess energy for later use when solar energy production is insufficient

What is an inverter?

A solar inverter or photovoltaic inverter is a type of power inverter which converts the variable direct current output of a photovoltaic solar panel into a utility frequency AC (alternating current) 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–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.

What is a hybrid inverter?

A hybrid solar power system is a renewable energy system that combines solar panels with energy storage capabilities, often in the form of batteries. These systems are designed to provide reliable power to homes and businesses, particularly in areas where grid power may be unreliable or unavailable.

Are LiFePO4 batteries safe for home use?

Absolutely! Due to their chemical composition, they are less prone to overheating or catching fire. LiFePO4 batteries use iron phosphate as the cathode material and a graphite anode, unlike other lithium-ion batteries, LiFePO4 batteries, contain abundant materials like iron, which makes them more environmentally friendly.

What brand of solar panels do you use?

We use TrinaSolar Vertex solar panels. It has a maximum power output of 550W, a maximum efficiency of 21.5%, and a positive power tolerance of 0~+5W.

✓ High power up to 550W

✓ High reliability

✓ High energy yield

 

 

Is my roof suitable for solar panels?

South-facing roofs with little to no shade and enough space to fit a solar panel system are ideal for installing solar. However, there are workarounds in many cases if your home doesn't have the ideal solar roof. You also have to consider a handful of factors that may affect how whether solar makes sense for your roof. They include age, material, space, shading, tilt, and orientation.

How do solar photovoltaic (PV) panels work?

Solar panels play a crucial role in harnessing the sun's energy by absorbing sunlight and converting it into direct current (DC) electricity. This DC electricity is then channeled through an inverter to transform it into alternating current (AC) electricity, which is the standard form of electricity used in most homes and businesses. Once converted, the AC electricity can be utilized to power your household appliances and devices. Additionally, any excess electricity can be fed back into the electric grid, allowing you to contribute to the overall energy supply.

Does solar still work during rainy seasons?

While solar panels are less effective during rainy seasons compared to sunny weather, they can still generate some electricity, and other factors like rain cleaning and battery storage can help maintain overall efficiency.

Do the solar panels on your roof need to be cleaned?

In general, solar panels require minimal maintenance. However, since your roof's solar panels will be exposed, the cells may get accumulated with dirt, debris, or even bird droppings. Therefore, you might need to clean your panels on a regular basis to keep them operating at their best.

Do solar panels work in a blackout?

If your solar panel system is connected to the grid, it will shut off during a blackout. This is done to ensure the safety of emergency responders and electricity utility repair workers, as it prevents your solar panels from sending power back to the grid.

However, there are certain inverters available for purchase that can provide backup power during a blackout when paired with a battery.

Why do you need my historical electricity usage?

Your historical electricity usage provides essential data that helps the solar company tailor their recommendations and financial projections specifically to your energy needs and goals. This ensures that the solar system they propose is both effective and economically viable for your situation.

What is net metering?

When you do a project with renewable energy, like Solar Hydro or Wind turbine, you can apply in the local electric company about net metering, there is an agreement so you can sell power you produce but not consume to electric company, you can see what amount on your existing electric bill, it’s the amount Generation charge.