Solar Inverters

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EnergySage Buyer's Guide: Solar Inverters

Browse solar inverters from top manufacturers on the EnergySage Buyer’s Guide. To learn about other solar energy system components, visit EnergySage's solar panel and solar battery buyer's guides.
Solar inverters are an essential component in any residential, commercial, or utility-scale solar energy system. Use this guide to compare solar inverter options and understand which products are best for your installation.
 
1 - 12 of 4,526

Enphase Energy IQ7 IQ7X-96-x-US-240

  • Series: IQ7
  • Model: IQ7X-96-x-US-240

Excellent

Manufacturer Reviews (14)

  • Efficiency: 97.5%
  • Voltage Max: 64.0W
  • Warranty: 25 Years

Enphase Energy IQ7 IQ7-60-x-US-240

  • Series: IQ7
  • Model: IQ7-60-x-US-240

Excellent

Manufacturer Reviews (14)

  • Efficiency: 97.0%
  • Voltage Max: 37.0W
  • Warranty: 25 Years

SolarEdge Technologies HD Wave SE7600H-US [240V]

  • Series: HD Wave
  • Model: SE7600H-US [240V]

Very Good

Manufacturer Reviews (10)

  • Efficiency: 99.0%
  • Voltage Max: 480.0W
  • Warranty: 12 Years

Enphase Energy IQ7PLUS IQ7PLUS-72-x-US-240

  • Series: IQ7PLUS
  • Model: IQ7PLUS-72-x-US-240

Excellent

Manufacturer Reviews (14)

  • Efficiency: 97.0%
  • Voltage Max: 45.0W
  • Warranty: 25 Years

SolarEdge Technologies HD Wave SE10000H-US [240V]

  • Series: HD Wave
  • Model: SE10000H-US [240V]

Very Good

Manufacturer Reviews (10)

  • Efficiency: 99.0%
  • Voltage Max: 480.0W
  • Warranty: 12 Years

SolarEdge Technologies HD Wave SE6000H-US [240V]

  • Series: HD Wave
  • Model: SE6000H-US [240V]

Very Good

Manufacturer Reviews (10)

  • Efficiency: 99.0%
  • Voltage Max: 480.0W
  • Warranty: 12 Years

SunPower Corporation X20 SPR-X20-327-E-AC [240V]

  • Series: X20
  • Model: SPR-X20-327-E-AC [240V]

Excellent

Manufacturer Reviews (45)

  • Efficiency: 97.5%
  • Voltage Max: 64.0W
  • Warranty: 25 Years

SolarEdge Technologies HD Wave SE11400H-US [240V]

  • Series: HD Wave
  • Model: SE11400H-US [240V]

Very Good

Manufacturer Reviews (10)

  • Efficiency: 99.0%
  • Voltage Max: 480.0W
  • Warranty: 12 Years

SolarEdge Technologies HD Wave SE7600H-US [240V] | Extended Warranty at Additional Price

  • Series: HD Wave
  • Model: SE7600H-US [240V] | Extended Warranty at Additional Price

Excellent

Manufacturer Reviews (10)

  • Efficiency: 99.0%
  • Voltage Max: 480.0W
  • Warranty: 25 Years

SolarEdge Technologies HD Wave SE3000H-US [240V]

  • Series: HD Wave
  • Model: SE3000H-US [240V]

Very Good

Manufacturer Reviews (10)

  • Efficiency: 99.0%
  • Voltage Max: 480.0W
  • Warranty: 12 Years

SolarEdge Technologies Single phase SE11400A-US [277V]

  • Series: Single phase
  • Model: SE11400A-US [277V]

Very Good

Manufacturer Reviews (10)

  • Efficiency: 97.5%
  • Voltage Max: 480.0W
  • Warranty: 12 Years

APsystems QS1 QS1-240

  • Series: QS1
  • Model: QS1-240

Very Good

Manufacturer Reviews (6)

  • Efficiency: 96.5%
  • Voltage Max: 48.0W
  • Warranty: 10 Years
1 - 12 of 4,526

Solar inverter buyer’s guide

There are many solar inverters available - how do you know which one is best for you? Some important aspects to consider when selecting a solar inverter include wattage, efficiency, and warranty. All of these aspects plus more are considered in each solar inverters’ quality rating.

What is a solar inverter? Why is it important?

Solar panels produce electricity through the “photovoltaic effect”, which is a physical and chemical process that occurs when sunlight strikes solar cells. The electricity generated during this process is direct current (DC) electricity. However, most appliances run on alternating current (AC) electricity. A solar inverter’s main job is to convert the DC electricity generated by solar panels into usable AC electricity.

Types of solar inverters

There are three main types of inverter technologies available for your solar installation: string inverters, power optimizers, and microinverters. Both string inverters and power optimizer systems use a centralized string inverter to convert electricity from DC to AC, while microinverters convert DC electricity to AC electricity at the panel site.
String inverters join groups of solar panels in a system by “strings” that each connects to a single inverter where electricity gets converted from DC to AC electricity. While string inverters are typically the least expensive inverter option, one underperforming panel on a string can bring down the production every panel on that string. For this reason, string inverters are best suited for solar installations without any shading, and installations where all the panels are facing the same direction.
Power optimizers are located at each individual panel and are paired with a string inverter to complete the conversion from DC to AC electricity. Power optimizers don’t actually convert electricity to alternating current. Instead, they “condition” the DC electricity to optimize its voltage before sending it to a string inverter to be converted. This results in a higher overall system efficiency compared to using string inverters alone. Power optimizers also help reduce system inefficiencies by reducing the impact of shading or other factors reducing production at specific panels.
Microinverters are also located at each panel site, but are not paired with a string inverter. Unlike power optimizer systems, microinverters convert electricity from DC to AC right at the panel. This approach also leads to optimized electricity production when compared to using a string inverter alone. By converting DC electricity to AC electricity right at each panel site, microinverters cancel out the system-wide effects of a single panel underproducing.
Microinverters and power optimizers are often collectively referred to as Module-Level Power Electronics, or MLPEs for short. As a group, MLPEs offer several specific benefits when compared to traditional string inverters, including shade tolerance and individual panel monitoring options. However, MLPEs traditionally come with a higher price tag than string inverter options.
Solar Inverters Explained

Comparing solar inverter options

There are many ways to compare solar inverters. Here are a few key metrics to keep in mind:

Efficiency

A solar inverter’s efficiency how well it converts DC electricity from solar panels into usable AC electricity. With any electrical conversion process, energy is lost in the form of heat – the lower the energy losses, the higher the efficiency. Higher efficiency inverters are typically more expensive but will help maximize the electricity output of your panel system.

Warranty

Many solar inverter companies provide a warranty offering of at least 10 years, but some will offer up to 25. Solar inverters typically have shorter lifespans than solar panels, so you may have to replace your inverter at least once. If you’re looking for added peace of mind, many inverter manufacturers offer extended warranties for an additional price.

The EnergySage solar inverter rating system

The EnergySage classification system incorporates technical specifications for solar inverters to compare their performance, durability, warranty and overall quality. By assessing each product across a range of metrics, the EnergySage rating system groups equipment into five different classifications: Poor, Fair, Good, Very Good and Excellent.
Solar inverters rated as Poor or Fair are at the low end of what is currently available in the market, or may be outdated models no longer produced by manufacturers and rarely stocked by solar installation companies. Equipment receiving Good, Very Good or Excellent ratings must meet a baseline set of criteria rigorously developed so that you can be confident that your solar energy system will meet your needs.
Solar Panel Cost Chart

Other solar inverter resources

Inverter types: An overview of the major types of solar inverters.
Microinverters vs. power optimizers: Learn how the two MLPE options stack up against one another.
Solar inverter sizing: All about how solar inverters are sized to match your solar panel system.
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