We Kept the 156mm / 5BB Line Running — Replacements for Older Solar Plants

If your solar plant was built years ago, you may have faced a frustrating problem:

One panel fails, but finding a suitable replacement is difficult.

Older solar systems used 156mm / 5BB modules in a range of power ratings, including 250W, 260W, 275W and 280W.

So when a panel fails, you don't simply need another solar panel.

You need one that matches the existing system.

Why Are Legacy Modules Hard to Find?

The solar industry has moved forward.

As larger wafer sizes and newer technologies such as 10BB and 16BB became mainstream, many manufacturers upgraded their production lines.

156mm / 5BB lines were gradually retired.

For owners and O&M companies of older solar plants, this creates a simple problem:

There are plenty of new panels on the market, but fewer suitable replacements for older systems.

We Chose to Keep the Line Running

While many manufacturers moved on to newer technologies, YS SOLAR kept its 156mm / 5BB production capability.

That means we can continue to supply 156mm / 5BB modules for older solar plants and help customers find or produce modules that match their existing specifications.

275W polycrystalline modules are currently available from stock.

Replace the Panel — Keep the System

For an older solar plant, the goal is usually simple:

Replace the failed module without making unnecessary changes to the existing system.

Before choosing a replacement, the key specifications to check include:

Power | Dimensions | Voc / Vmp | Cell size | Mounting holes

If the specifications are properly matched, unnecessary changes to the existing mounting structure, strings or system design may be avoided.

Send us the original module nameplate, datasheet or specifications, and we'll help check the match.

Older Solar Plants Still Need Support

The industry may have moved to newer technologies, but existing solar plants still need maintenance and replacement modules.

YS SOLAR continues to supply 156mm / 5BB legacy modules for older solar systems.

275W polycrystalline modules (Dimension:1650*992*35mm) are available from stock, while other power ratings can be matched or customized based on your original specifications.

Looking for 156mm / 5BB replacement modules? Contact YS SOLAR.