With the growing popularity of solar power, a lot of people have questions about the different equipment required to build and run a residential solar power system. One piece of equipment that gains a lot of interest is the solar inverter. Though essential to a system’s operation, many people don’t know much about this piece of equipment, so keep reading to get answers to some of the most frequently asked questions about solar inverters.
What’s a Solar Inverter?
First off, what is a solar inverter anyway? Many people don’t realize that solar panels generate direct current (DC) energy, while most of the electronics in their homes utilize alternating current (AC) power. An inverter changes the current of the electricity from DC to AC so that you can actually use the power your solar panels generate. Otherwise, your panels wouldn’t serve much purpose, would they?
How Does a Solar Inverter Work?
When the DC power flows into your solar inverter, the inverter puts it through a series of electronic components that aid in changing it to AC electricity. This process involves using transformers, capacitors, and other electronic elements that sound like they could be out of a sci-fi film. Through a series of rapid changes in the current, the inverter can alter the flow of the electricity to ensure the output matches the voltage and frequency requirements of your home’s electrical system.
Are There Different Types of Solar Inverters?
In a word, yes! There are 3 primary types of solar inverters that people can choose from when designing a solar power system:
- String Inverters: These are the most common and most cost-effective option. They connect a series of solar panels in a “string” to a single inverter.
- Microinverters: These are attached to each individual solar panel, converting the DC to AC at the panel level. While more expensive, they offer higher efficiency and better performance, particularly in shady conditions.
- Power Optimizers: While not inverters in their own right, power optimizers can be paired with a central inverter to provide the benefits of both a string inverter and microinverters.
How Do I Choose the Right Inverter?
There are several factors that will impact your decision when choosing a solar inverter, including the size of your solar power system, your budget, and your specific needs. String inverters are best suited to systems in open, unshaded areas, while microinverters and power optimizers are better for complex systems with shading issues. You should consult with a solar expert to determine the best Fronius solar inverters for your needs.
