Category Archives: Buyer’s Guide

Articles about solar products and companies to help consumers understand more about solar equipment/companies and best compare their quotes and options.

flexible solar panels

Flexible solar panels: are they right for you?

Reading Time: 4 minutes

Solar panel technology is rapidly advancing every year, and new developments like flexible solar panels are constantly being released and improved upon. Read on to learn what flexible solar panels are, as well as how they compare to typical photovoltaic cells.

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certainteed warranties

We read CertainTeed’s warranty so you don’t have to

Reading Time: 5 minutes

Let’s face it – warranties aren’t the easiest (or most gripping) documents to read. There are often a lot of details and fine print included that can be hard to digest, leaving many to wonder: what does the warranty actually cover? Am I vulnerable? Anything I might be missing?

To make it as easy as possible, we’ve read warranty documents for the top solar equipment manufacturers–and talked to them to confirm what is and isn’t included–and plan to point out the most important aspects of each in a series of articles. For our second article in this series, we’re diving into the warranty of a company well-established in both solar and roofing: CertainTeed. 

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solar inverters

What is a solar inverter? How does a solar inverter work?

Reading Time: 5 minutes

Solar panels aren’t the only component that you should be thinking about when you evaluate your solar system equipment. Solar power inverters play an equally important role in a solar system: they convert the electricity your solar panels create into a form that can be used by the appliances, lighting, and other electronics that are in your home. Once you understand how solar inverters work, and the different types of inverters available for solar, the EnergySage Solar Marketplace can help you compare solar quotes with different inverter types.

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how many solar panels do i need

How many solar panels do I need for my home?

Reading Time: 6 minutes

It’s no use installing just one solar panel–you’ll need more than that to reap the financial benefits of a solar panel system. While the answer isn’t always so simple, we’ve put together some example cases to help you understand, at a high level, how many solar panels you need to install.

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solar panel efficiency

Most efficient solar panels: solar panel cell efficiency explained

Reading Time: 5 minutes

For those looking for the most efficient solar panels for their solar energy system, the first thing you need to know is how to compare efficiency metrics for different manufacturer brands. Solar panel efficiency is one useful metric used to determine how much power a solar panel produces compared to other products.

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certainteed solar review

CertainTeed solar panels: the complete review

Reading Time: 4 minutes

CertainTeed is a large North American manufacturer of building materials, including solar panels. Established in 1904 as the General Roofing Manufacturing Company, it is now a wholly-owned subsidiary of Saint-Gobain SA, a 300-year old materials company based in Paris. They typically manufacture their solar products in either Vietnam or the United States. 

Whether you’re debating the merits of CertainTeed vs. SunPower panels or simply trying to evaluate your solar PV options, a thorough review of solar panel product specifications is the best way to be confident in your solar investment. EnergySage’s CertainTeed solar panel review breaks down all of the details to evaluate how CertainTeed compares to other solar panel brands on the market.

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solar phone chargers

The best solar phone chargers in 2021

Reading Time: 6 minutes

Keeping your phone charged on the go can be a hassle – hunting for an outlet isn’t the way anybody wants to spend their day. Whether you’re hiking, camping, or simply walking around, there’s an easy and environmentally-friendly solution to your charging problem: a solar phone charger.

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understanding solar panel warranties

What to know about a solar panel warranty

Reading Time: 4 minutes

Solar panel warranties protect your solar investment and are an important part of any solar installation. There are a few different kinds of warranties that keep your panels covered, and understanding both the differences between them and what products feature the best warranties is important to make sure you get the best deal for your solar energy system.

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LG solar panels review

LG solar panels: the complete review

Reading Time: 4 minutes

LG is well known for its high-quality electronics, and the company’s solar PV products are no different. In fact, LG solar panels appear alongside SunPower and Panasonic in EnergySage’s ranking of the best solar panels currently available to homeowners in the United States. Currently, LG’s residential product line focuses on the NeON series of panels: NeON 2, NeON R and the NeON R variations. The LG NeON R ACe series is especially worth a look, as a high-powered smart module with an integrated microinverter.

Whether you’re debating the merits of SunPower vs. LG solar panels or simply trying to evaluate your solar PV options, a thorough review of solar panel product specifications is the best way to be confident in your solar investment. EnergySage’s LG solar panels review breaks down all of the details to evaluate how LG compares to other solar panel brands on the market.

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Panasonic solar panels review

Panasonic solar panels: the complete review

Reading Time: 4 minutes

Panasonic is one of the world’s largest manufacturers of consumer electronics and an increasingly popular choice for U.S. homeowners installing solar. Panasonic’s heteroinjuction technology (or HIT) is included across their product lines, providing a unique take on the solar cell. Their HIT, HIT+ and HIT AC series are all high performers on EnergySage, with Panasonic the most quoted solar panel brand on EnergySage in 2019.

Whether you’re trying to decide between SunPower and Panasonic solar panels or simply evaluating your solar PV options, thoroughly reviewing the product options available to you is the best way to be confident in your solar investment. EnergySage’s Panasonic reviews take a look at the technical specifications of Panasonic solar panels to evaluate how they compare to other manufacturers on the market.

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