A Guide on 3 Phase Solar Inverters: Prices and Choices

As the demand for renewable energy solutions is increasing, so are the developments in the technology around the solar inverters. A 3-phase solar inverter has become one of the essential parts of a solar energy system, mainly for commercial and industrial settings or higher capacity residential installations. So, in this article, we'll discuss the options of 3-phase solar inverters available in the market, their pricing, and the advantages.

What is a 3-Phase Solar Inverter?

A 3-phase solar inverter converts DC (Direct Current) electricity that is generated from solar panels to AC (Alternating Current) electricity which is used for a three-phase electrical system. Inverters like this are used for high-power output applications. They find most applications in big homes, companies, and industry. This particular type of inverter is compared with single-phase inverters that do not give better efficiency, reliability, and scalability as the three-phase inverters provide.

Types of 3-Phase Solar Inverters

3-Phase Off-Grid Solar Inverter
Off-grid solar inverters are for systems that are not connected to the utility grid. They are ideal for remote locations or places where grid power is unreliable. They allow the user to store excess energy in batteries for later use. The 3-phase off-grid solar inverter is often chosen for larger systems where energy independence is a priority.
Hybrid 3-Phase Solar Inverter
The hybrid solar inverter combines traditional solar inverter and battery storage system features. Its feasibility is obtained on grid-tied as well as off-grid applications as it stores surplus energy in a battery from which it is used after sometime. The most efficient 3-phase hybrid solar inverters provide maximum flexibility as it can store energy when it is photovoltaic production at the maxima state of sun while obtained at the absence of sun after sometime.
Grid-Tied 3-Phase Solar Inverter
The three-phase grid-tie inverters are meant for applications where a link exists with the utility grid. These inverters transform DC electricity from solar power to AC, which is then put to use in your house or business. Any surplus power which can be fed back into the grid can also create credits or rewards through net metering.

Power Rating Levels of 3-Phase Solar Inverters

Common Power Ratings of 3-Phase Solar Inverters

3kW 3-Phase Solar Inverter
A 3kW 3-phase solar inverter can be used on small commercial and residential applications with modest energy requirements. It is one of the perfect choices for a family that consumes modest amounts of electricity and would prefer to decrease dependency on grid supply.
4kW 3-Phase Solar Inverter
The 4kW inverter is slightly more powerful and usually used in small businesses or bigger homes. This inverter balances out the power output and efficiency and is therefore suited for those users who need a little more energy than a 3kW inverter can supply.
5kW 3-Phase Solar Inverter
This type of 5kW 3-phase solar inverter will appropriately meet the needs of medium-sized homes or businesses with greater electricity usage. This system is quite popular due to its adaptability to meet many commercial settings' needs.
10kW 3-Phase Solar Inverter
For industrial or high-commercial usage applications, a 10kW 3-phase solar inverter will have loads more power to dispense and support, with resultant steady power supply for larger business application requirements.
10kVA 3-Phase Solar Inverter
It will be rated nearly the same as the power rating of a 10kW inverter while considering the impact of a power factor. Therefore, a 10kVA (Kilovolt-Ampere) 3-phase solar inverter can be considered in high capacity in applications where continuing power with minimal loss is required.

Cost of 3-Phase Solar Inverters

The cost of a 3-phase solar inverter varies with the brand, capacity, and additional features. Below is a general overview of the prices:

3kW 3-Phase Solar Inverter Price: These can range from $600 to $1,200 depending on the brand and model.
4kW 3-Phase Solar Inverter Price: Expect to pay between $1,000 and $1,800 for a 4kW inverter.
5kW 3-Phase Solar Inverter Price: A 5kW inverter is usually around $1,500 to $2,500.
10kW 3-Phase Solar Inverter Price: A 10kW inverter will be around $2,500 to $4,000, depending on the features and brand.
10kVA 3-Phase Solar Inverter Price: The price for a 10kVA inverter is usually similar to a 10kW inverter and varies between $2,500 and $4,500.

Things to Consider Before Buying a 3-Phase Solar Inverter

Power Output: Choose an inverter with appropriate power rating meeting your energy requirement. Over sizing or under sizing may lead to an inefficient system as well as increased cost.
Grid Connection: If one is connected to the grid, one would want to opt for the grid-tie 3 phase inverter if he or she wants to have a life disconnected from the grid; an off grid or hybrid will do.
Warranty and After-Sales Support: A good warranty and reliable customer support are important for the longevity and performance of your solar inverter.
Brand Reputation: Opt for reputable brands with good reviews and a proven track record in the solar industry, such as SMA, Fronius, and Huawei.
Efficiency: Choose an inverter that offers high conversion efficiency to maximize the amount of energy you get from your solar system.

Conclusion

A 3-phase solar inverter selection depends on the power needs of your system, whether it is grid-tied, off-grid, or hybrid. Inverters are available to match a wide range of energy requirements, from the 3kW to the 10kW and beyond. With prices ranging based on power capacity and features, investing in an inverter that matches your budget and energy demands is essential. As solar technology advances, the best 3-phase solar inverters provide efficiency as well as flexibility for long-term use.