Renogy 320W N-Type 18BB Rigid Solar Panel

2nd of 8 we've scored in Rigid Solar Panels

2nd of 8 in Rigid Panels

Renogy 320W N-Type 18BB Rigid Solar Panel

Name: Renogy 320W N-Type 18BB Rigid Solar Panel
Brand: Renogy
SKU: RSP320DC-BK

SVT Score, Upper

6.1

Usability6.1/10Social6.0/10The SVT Score is placed on its category's range

Versus

6.1

SVT SCORESRead review

A 320 W N-type panel with an IP68 junction box, 22.2 percent module efficiency and 32.9 lb, sold in packs of two to ten.

$300

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SKU: RSP320DC-BK Category: Rigid Solar Panels Brand: Renogy

Usability

6.1 out of 10

Capacity10.0

At 320 W it reaches the top rung for a rigid panel, so it scores 10 on capacity.

Efficiency8.0

Its 320 W from 1.44 m² works out to 22.2 percent module efficiency, the figure Renogy's own spec table prints, so it scores 8 on efficiency.

Operating Range5.0

Renogy's datasheet rates the temperature coefficient of Pmax at -0.32 percent per °C, so it scores 5 on operating range.

Lifespan7.0

Renogy's datasheet and warranty schedule guarantee 80 percent of rated output at 25 years, though the product page's spec table reads a 10-year output warranty, so it scores 7 on lifespan.

Features3.0

Its junction box and connectors are rated IP68, with two bypass diodes and no station adapters, so it scores 3 on features.

Better on featuresRenogy 250W Bifacial PanelAn IP68 junction box. $264.99Scores 6.0

Verification2.0

Intertek and the CEC list Renogy's RSP320D-BK-84 panel, but no certifier directory lists the RSP320DC-BK sold here, so it scores 2 on verification.

Warranty & Support8.0

Renogy covers materials and workmanship for 10 years, so it scores 8 on warranty and support.

Warranty and returns

Renogy sets warranty terms by model, for the original buyer only, and takes unused renogy.com orders back within 30 days, lithium batteries within 7.

Price

$300.00 a panel at renogy.com, sold in packs of two or more.

Summary

320 W with an IP68 box, sold only in pairs

The RSP320DC-BK is Renogy's 320 W N-type rigid panel with 18 busbars, a 1640 x 880 mm glass-and-aluminum module sold in packs of two or more.

Verdict

It suits a buyer building an array of 640 W or more on a cabin, shed or large RV roof, who can lift a 32.9 lb, 64.6 in panel and buys in pairs.

Strengths

IP68 junction box and connectors
22.2 percent module efficiencycomputed from 1640 x 880 mm
Rated for 5,400 Pa snow load and 2,400 Pa wind load
80 percent of rated output guaranteed at 25 years in Renogy's warranty schedule
10-year material and workmanship warranty
12 AWG output cables900 mm

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Drawbacks

Sold only in packs of two or more$599.99 the pair
32.9 lb and 64.6 in long
Two bypass diodes
The product page's spec table reads a 10-year output warranty against 25 years in the datasheet and warranty schedule
An image caption on Renogy's page calls its cells PERC while the title says N-type

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Social score

6.0 out of 10

RedditBrand-level7.0 out of 10

Reddit owners mostly report Renogy's rigid panels holding up: an r/OffGrid owner has run several for more than a decade with none failed, and an r/vandwellers thread on the brand sums it up as panels fine, other gear less so. An r/VanLife owner's RSP200D lost half its voltage after about 18 months, and Renogy shipped a replacement in two weeks under the 5-year warranty; that poster is quoted on Renogy's own ShadowFlux page. An r/SolarDIY buyer of the 200 W suitcase reported a defective charge controller, two wrong replacement parts and dozens of emails before a 20 percent refund (2025).

GoogleProduct-line3.0 out of 10

On DIY Solar Forum an owner of four 24 V 320 W Renogy rigid panels wired in series, model not named, had two develop burn spots within a week; Renogy replaced them, and the replacements burned within four hours of sun, one smoking, with about an hour of morning shade on part of the array (May 2026).

YouTubeBrand-level6.0 out of 10

Both channels found carry a tie to the panels they review. Freedom in a Can, which passes on a 10 percent Renogy code through Renogy's affiliate link, found no delamination on two 100 W flexible panels after 9 months and 9,000 miles. Johnny's Weekends, which earns Amazon commission on the panels it links, found Renogy's 200 W flexible panel performed well but trailed a CIGS panel under shade (2023, about 128,000 views).

Amazon8.0 out of 10

Liked

Produced above its 320 W rating for a year, per one owner

Complaints

Burn spots through the backing under partial shade, on a replacement too, per one owner
Panels or box damaged in shipping, per two owners
Bent frames, per some owners

Renogy's 2-pack listing of the 320 W N-type 18BB panel on Amazon US (B0FJM4GGCR) reads 4.5 from 29 ratings, 73 percent five-star, 12 percent four-star, 10 percent three-star and 5 percent one-star. A second Renogy listing of the same panel in packs of two to ten (B08D644VFN) reads 4.4 from 148, 77 percent five-star and 6 percent one-star, on an ASIN older than the N-type panel.

User reviewsNot scored

The retailer pool is blank: no US retailer other than Amazon and Renogy lists the 320 W N-type panel with reviews; the 320 W packs at Home Depot and Lowe's are the older RNG-320D mono panel.

Trustpilot

Trustpilot rates renogy.com 4.0 from 6,939 reviews on a claimed profile that Renogy pays Trustpilot to subscribe to.
The split is 59 percent five-star against 22 percent one-star.

Track record

The BBB rates Renogy A+ and has accredited it since January 2014, with 122 complaints filed in the last three years.
CPSC recall 16-725 (2016) replaced about 1,500 RNG-100DB bendable panels for fire risk, and NHTSA recall 24E-005 (2024) gave about 1,800 RV-maker battery packs a firmware fix.

Not countedExcluded

Not counted in any pool: renogy.com's own review widget, Renogy's YouTube channel, its r/RenogyCommunity subreddit and Facebook groups, or its Impact affiliate and Off-Grid Creator programs.

Summary

Brand-level

4.0 on Trustpilot, an A+ from the BBB, two recalls

Specs

CapacityNot applicable
AC OutputNot applicable
System VoltageNot applicable
Panel Power300-399 W
Charge CurrentNot applicable
Safety ListingNone verifiable
Low-Temp ChargingNot applicable
Warranty10 Years
MonitoringNot applicable
Weight32.9 lb

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Not published by Renogy: cell type.

Company

Renogy is the brand of RNG International, Inc., of Ontario, California, which Dr. Yi Li founded in 2010.

Where it sells

It sells direct from renogy.com and its Amazon and eBay brand stores, and through Home Depot, Lowe's, Best Buy, Camping World and Walmart's marketplace.

Description

The Renogy RSP320DC-BK is a 320 W rigid panel of 60 N-type monocrystalline cells with 18 busbars, rated 37.85 V and 8.46 A at maximum power and 43.82 V open-circuit by Renogy's datasheet and spec table. It measures 1640 x 880 x 35 mm (64.6 x 34.7 x 1.4 in) and weighs 32.9 lb, with 3.2 mm tempered glass on an anodized aluminum frame that Renogy rates for 5,400 Pa of snow load and 2,400 Pa of wind load. Renogy markets up to 25 percent cell efficiency; its spec table prints 22.2 percent module efficiency, which its rated 320 W over its own area confirms. The datasheet gives a temperature coefficient of Pmax of -0.32 percent per °C, an IP68 junction box with two bypass diodes, IP68 connectors and 900 mm (35.4 in) 12 AWG output cables. Renogy's warranty schedule lists it at 10 years for materials and workmanship and 80 percent output at 25 years. Renogy sells it only in packs: two panels at $599.99, four at $1,099.99, six at $1,599.99, eight at $2,099.99 and ten at $2,499.99.