Two-sided solar generation for a 640W array
Capture direct and reflected light with two 320W bifacial rigid panels.
This two-panel Renogy RSP320DT-BK bundle provides 640W of rated front-side capacity and a transparent backsheet that allows the rear cells to collect reflected light. It is suited to open racks, elevated ground mounts and other installations where light can reach both faces.
At a glance
Verified numbers for the exact product family
640WTwo-panel front-side rating
26.05VVmp per panel
30.43VVoc per panel
38.8 lbWeight per panel
Bifacial gain depends on the installation
Renogy markets up to 30% additional energy under favorable reflective conditions. Rear-side gain is not guaranteed; surface reflectivity, clearance, tilt, shading, temperature and balance-of-system losses all matter.
Why this Renogy product
A two-panel foundation for exposed racks and reflective sites
Energy from both facesThe transparent backsheet lets the rear cells collect reflected and diffuse light that a conventional opaque-back panel cannot use.
Fewer modulesTwo 320W modules provide 640W of nameplate power with fewer frames and connections than a six-panel 100W-class array.
Outdoor durabilityRenogy lists an IP68 junction box and 5,400Pa snow-load validation for properly engineered fixed installations.
System fit
Design the rack, string voltage and rear-side clearance together.
Each panel is rated 26.05V Vmp, 12.28A Imp, 30.43V Voc and 13.09A Isc. Two in series roughly double voltage; two in parallel roughly double current. Calculate cold-weather Voc and apply the controller or inverter manufacturer’s current, power and protection limits.
MountingEach panel measures 67.9 × 38.0 × 1.4 in. Confirm structure, wind and snow loading, grounding, fasteners and service clearance.
Rear-side accessAvoid mounting the transparent backsheet flush against an opaque surface if bifacial contribution is part of the design goal.
In the box
What this listing is documented to include
- Two Renogy RSP320DT-BK 320W bifacial rigid solar panels
- Factory output leads and solar connectors on each panel
Racking, roof attachments, branch connectors, extension cables, combiner equipment, charge controller, inverter and batteries are not listed as included.
Product confidence
Long-term Renogy panel coverage
Renogy’s current US page markets 25-year performance coverage for this panel family. Exact material-and-workmanship terms, output thresholds, eligibility and remedies follow the written warranty for RSP320DT-BKx2-G1-US.
Common questions
Buyer FAQ
Is the listing 320W or 640W total?
It includes two 320W panels, for 640W combined front-side STC nameplate power.
Will the rear side always add 30%?
No. Renogy’s up-to figure depends on a reflective surface and favorable spacing, angle and light conditions. Treat rear-side energy as site-dependent.
Can I connect both panels in series?
Only if the combined cold-weather Voc remains below the connected equipment’s maximum and all conductor and protection rules are met.
Does this include a charge controller?
No. This is the two-panel bundle only; the controller or inverter, storage and balance-of-system hardware are separate.