Ballasted-PRO system is most popular in the PV market now, and Ballasted-ULT is suitable for thick snow pressure. But how can we achieve big panel size and higher load-bearing ability in installing?

The four corners of the panel will lie on Ballasted-PRO system ERK-BPF/ERK-BPR, and can add one more ERK-R41-2 rail in the middle of each panel in order to support it, and use Ballasted-ULT system ERK-BUR/ERK-BUF to lock the panel.

The combination of dual systems perfectly realizes large panel installation and larger load-bearing capacity, making the use of solar energy resources more stable.