Energy ReneSola

ReneSola: Tier 1 since 2005, over 25 GW shipped

The ReneSola brand: a time-tested manufacturer

ReneSola is a US-listed, China-founded solar panel manufacturer established in 2005 and listed on the New York Stock Exchange in 2008, with over 25 GW of cumulative equipment shipped worldwide over the company's entire history. That scale of accumulated experience is confirmed by Tier 1 status under Bloomberg New Energy Finance's classification — a rating given only to manufacturers with proven financial stability and no supply defaults over years of market operation, not just stated production line capacity.

Range in the "Energy" category: RS6 and RS9

In the "Energy" category, ReneSola is represented by monocrystalline bifacial solar panels in two lines: the more compact RS6 (575-600 W) and the more powerful RS9 (700-720 W). Both generate electricity from both sides of the module thanks to bifacial construction, not just the front surface, delivering extra output without increasing mounting area.

Bifacial technology and monocrystalline advantages

Monocrystalline silicon, underlying every ReneSola panel, is grown as a single continuous crystal using the Czochralski method, unlike polycrystalline silicon, which uses many small crystals. That provides higher electron mobility and higher solar-to-electricity conversion efficiency at the same panel area — a spec critically important for projects with limited roof or land space.

Bifacial construction uses light reflected off the surface beneath the panel for additional generation through the module's rear side. Depending on the underlying surface's albedo and mounting height above it, that can add anywhere from a few percent to fifteen percent or more of annual output compared to a monofacial panel of the same rated power.

Manufacturing, warranty and how to choose

ReneSola's manufacturing facilities are spread across several countries — Turkey, South Africa, India, Taiwan and China — giving the company logistics flexibility and reducing dependence on a single production site, a risk relevant for manufacturers concentrated exclusively in one country, especially during trade restrictions or logistics disruptions on specific supply routes.

Warranty terms for ReneSola panels include separate periods for the performance warranty (linear power degradation over 25-30 years) and for materials and workmanship, typically shorter and covering manufacturing defects in the frame, glass or junction box. Understanding the difference between these two warranty types matters when planning a long-term project, since it's the performance warranty that determines the investment's real payback period, not the marketing figure of overall service life.

When choosing between ReneSola and other leading monocrystalline panel manufacturers, it's worth comparing not just the stated wattage but also the power temperature coefficient — a spec showing how much output drops as the panel heats up in summer, directly affecting annual output for regions with hot summers.

When reading a specific model's datasheet, also pay attention to the exact conditions under which the bifacial output gain is stated: some manufacturers cite a figure for the best combination of albedo and tilt angle rather than a realistic estimate for a typical roof or ground-mount installation.

For projects where matching one model line matters for array uniformity, it's worth confirming actual stock availability of a specific model with the supplier in advance — even Tier 1 manufacturers occasionally run into regional shortages on specific power steps, and mixing different models within one array complicates both string design and later warranty claims.

Compare line, power, temperature coefficient, warranty terms and bifacial specs across the ReneSola models in the catalogue below, and pick solar panels that make the most efficient use of your project's available area thanks to a proven Tier 1 status and the manufacturer's years of experience in the global market.