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What is a micro-inverter?

In solar power systems, the inverter is like the brain of the system. It takes the DC (direct current) electricity produced by solar panels and converts it into AC (alternating current), a format that can be used to power your appliances and sent into the utility grid. Traditional inverters, called string inverters, are designed to … Continued

SolarEdge HD-Wave Review: Pros & Cons, Pricing, Specs (2020 Edition)

The SolarEdge HD-Wave is our most popular inverter. While it’s not the least expensive option on the market (a title held by the SMA Sunny Boy), the HD-Wave’s power optimizers put in a ton of legwork to ensure your system always produces at maximum efficiency. Most people run into some hurdles and challenges during the … Continued

SMA Sunny Boy Review: Pricing, Specs, Pros and Cons (2020 Edition)

SMA has long been regarded as one of the most reliable string inverter manufacturers in the solar industry. In this article, we’ll review the SMA Sunny Boy, our pick for best inverter for “standard” grid-tied solar systems. The Sunny Boy shines in systems that won’t be affected by shading, panel orientation, or other concerns that … Continued

Enphase IQ7+ Review: Pricing, Specs, Pros and Cons (2020 Edition)

The latest addition to Enphase’s line of micro-inverters is here: the Enphase IQ7+. The IQ7+ has been upgraded to a higher 290W output (up from 280W), which allows you to pair it with slightly larger panels than the previous model allowed. The Enphase IQ line remains our go-to micro-inverter pick for grid-tie systems thanks to … Continued

String Inverters vs. Micro-Inverters vs. Optimizers: Comparing Types of Inverters

What is an inverter? A solar inverter converts DC (direct current) into AC (alternating current). Solar panels generate direct current from the sun, but most home appliances run on alternating current. The inverter’s role in your system is to convert DC to AC so that the energy generated by your panels can be used to … Continued

String Sizing Guide: How Many Solar Panels Can I String Into My Inverter?

Designing a solar electric system is a complex process. We’ve written guides on how to size a grid-tied system, as well as sizing a battery bank for off-grid systems, which give you a pretty good idea of how much solar energy you need to produce to offset your energy consumption. But they don’t dive too … Continued

Review: SolarEdge HD-Wave Inverter with Integrated Electric Vehicle Charger

Today we’re going to take a quick look at a new offering in our product line: the SolarEdge HD-Wave 7.6K inverter with an integrated electric vehicle (EV) charger. SolarEdge is our default inverter choice for most grid-tied solar systems, and the 7.6 kW size is our best-selling model. You can read more about why we … Continued

Best Solar Inverters for Grid-Tie Systems (2020 Edition)

We recently published our recommendations for our favorite off-grid inverters you can buy for solar applications. It quickly became one of the most popular articles on our site. So now we’re back with its counterpart: a review of the best solar inverters you can buy for grid-tie systems in 2020. These are the inverters you would … Continued

What’s the Best Off-Grid Solar Inverter? (2020 Edition)

If you’ve spent any time researching solar energy, by now you’ve heard of an inverter. The inverter is like your solar system’s brain. It manages your power flow, controlling two kinds of power. DC—or direct current—power is the kind stored in batteries. It’s also the kind produced by solar panels. But you can’t use DC … Continued