What Is A Hybrid Inverter?
Posted by Robert Goldsmith on 26th Apr 2023
Imagine this - you wake up on a beautiful Saturday morning, stretch your arms, and head out to your backyard. The sun is shining, the birds are chirping, and the only other sound you hear is the gentle hum of your hybrid inverter. You smile, knowing that you're not only saving money on your energy bills but also doing your part for the environment by supporting clean, renewable energy. In this blog, we will dive into what a hybrid inverter is, its modes of operation, how it compares to other types of inverters, as well as its advantages and disadvantages.
What Does A Hybrid Inverter Do?
A hybrid inverter, also known as a multi-mode inverter, is an innovative device that combines the functions of a grid-tied inverter and a battery-based inverter into a single piece of equipment. This combination of features allows you to connect to the grid and enables battery backup in the form of an all-in-one solution. The inverter also acts as the heart of your system and works by converting the DC energy generated by your solar panels or stored in your batteries into AC energy that can be used to power various applications, including household appliances. In addition to powering your loads, hybrid inverters allow you to store solar energy in a battery for later use, while also letting you sell any excess energy back to the grid. This means you can use your solar energy even when the sun isn't shining and have backup power during blackouts. Hybrid inverters offer a solution for those who are looking to gain greater control over their energy use; with a hybrid inverter, you can enjoy the benefits of both a traditional grid-tied inverter and a battery-based inverter, giving you more security, versatility, and independence. It’s the solar equivalent of having your cake and eating it, too!
Modes of Operation: Key Functions of A Hybrid Inverter
Aside from its ability to connect to the grid and store energy, a hybrid inverter also performs other functions. For example, it can regulate the flow of energy among your solar panels, battery storage, and the grid. It can also help maximize your energy savings by automatically switching between the grid and battery storage to ensure that you always use the most cost-effective energy source.
There are typically three modes for a hybrid inverter to operate in, depending on the availability of solar power and the state of the battery storage system. The three main modes of operation are:
- Grid-Tied Mode: This is the default mode of a hybrid inverter, where it works like a traditional grid-tied inverter. In this mode, the inverter converts the DC power generated by the solar panels into AC power, which can be used to power your home or business. Any excess energy may be sent back to the grid.
- Battery Backup Mode: When there is a power outage or the grid goes down, a hybrid inverter can switch to battery backup mode. In this mode, the inverter uses the energy stored in the batteries to power your home or business.
- Off-Grid Mode: In this mode, the hybrid inverter disconnects from the grid completely and uses only the energy generated by the solar panels and stored in the batteries to power loads. This mode is useful for those who live in remote areas or those who want to be completely independent of the grid
What Is The Difference Between A Hybrid & Other Types Of Inverters
Compared to traditional grid-tied and off-grid inverters, hybrid inverters offer several advantages. They lend more flexibility and can be used for a wider range of applications. For example:
- Greater Energy Independence: Hybrid inverters allow you to store excess energy generated by your solar panels and use it when needed, reducing your reliance on the grid.
- Lower Utility Bills: By using stored energy during periods of high utility prices, you can save money on your energy bills.
- Enhanced Energy Security: In the event of a power outage, hybrid inverters can continue to provide power, thanks to their energy storage compatibility with your battery bank.
Advantages & Disadvantages of a Hybrid Inverter
Hybrid inverters offer users versatility when building solar power systems. They allow for the use of solar energy, even when the sun is not shining, and they can provide backup power during blackouts. However, a disadvantage can often be the upfront cost of a hybrid inverter and energy storage system, which can be more expensive than traditional grid-tied, or off-grid systems.
A commonly overlooked advantage of most hybrid inverters is the dual AC output. With this feature, you can power your whole home using an inverter sized only for critical loads. This not only provides reliable backup power but can also significantly reduce the upfront cost of your system.
The first output powers most of your demands and uses a mix of battery power, solar power, and grid power, allowing you to use as much of your solar system as possible while supplementing with grid power for larger loads.
The second output is for the most important loads that need continuous power even if the grid goes down, such as medical equipment, freezers, or security systems. In the absence of the grid, the inverter automatically switches to the second output to help ensure your important loads always have power.
- Pros:
- Energy independence & security
- Dual AC outputs
- Greater functionality than grid-tied inverters
- More cost-effective than off-grid inverters
- Backup power during blackouts
- Ability to sell excess energy back to the grid
- Cons:
- Potentially higher upfront cost
Is A Hybrid Inverter Worth It?
A hybrid inverter is a smart investment for anyone looking to maximize their solar system’s efficiency and functionality. It allows the convenience of being able to store excess energy for later use and the flexibility to use your solar system even during power outages. Hybrid inverters offer numerous benefits for solar enthusiasts who want to save money on their utility bills and reduce their carbon footprint. However, it’s important to do your research and consult with a professional to determine the right system for you. By making an informed decision, you can enjoy the benefits of renewable energy and increase your energy independence.
Need help deciding what’s right for you? Call us! Our Design Team is here to help.