Custom Replacement Solar Panels
Drop-in, dimension-matched modules for discontinued or aging models; match existing mounting holes and 30–50 mm frame thickness; MOQ 1 piece. Field-proven with 300,000+ units delivered.

DC Combiner Boxes
Up to 35 A per string with 400 A/500 A breakers. NEMA 4X enclosure with internal insulation and pre-installed components for fast, safe PV-to-inverter combining. NEC 2017/2020, UL1741, UL & CSA listed; 5-year performance warranty.

Power & Special Transformers
Oil-immersed up to 1000 kV / 1000 MVA and dry type up to 35 kV / 25000 MVA; options for traction/furnace/rectifying, box-type substations, and shunt reactors.

Foldable Mobile PV Station
Rapid deployment in ~1–9 minutes; automatic folding; modular transport. ~144 kW max capacity in a compact footprint (approx. L3,298 × W1,476 × H1,810 mm). No fuel, low noise, low maintenance—ideal for remote, emergency, or temporary power.

PV Optimizer
Advanced MPPT, easy install, system maximization and quality warranty for optimized energy yield and flexible integration.

Panel Drainage Clip
Tool-free, universal fit (30/33/35/40 mm frames). Redirects rainwater to reduce hot-spot risk, improve generation stability, and extend module life. Corrosion-resistant for outdoor use.

Solar Cables
Certified to TÜV / IEC & EN 50618 / UL4703: 600 V (18–2 AWG) and 1000/2000 V (18–2 AWG).

At GBP K.K., we are committed to accelerating the transition to clean, reliable, and efficient energy. From custom replacement panels and repowering solutions to mobile power generation, certified BOS components, and high-efficiency transformers, we served the evolving needs of EPCs, O&M teams, and asset owners.

RE+ 2025 brought together leading companies, innovators, and decision-makers across solar and sustainable infrastructure. Our booth in Las Vegas welcomed new visitors exploring solar adoption as well as long-term customers and partners optimizing existing systems. It was an ideal forum to discuss industry challenges, exchange knowledge, and demonstrate how GBP K.K. helps lower total project cost while strengthening compliance and reliability.

Our presence at RE+ 2025 showcased not only our technology but also our vision: enabling a more sustainable energy landscape in the United States and beyond.

Watch more in the video below:

Didn’t get a chance to stop by our booth? Let’s set up a quick walk-through of what we offer. From repower strategies and drop-in replacement panels to transformers aligned with specific efficiency requirements, we’re here to help. We partner closely with asset owners and investors, EPC contractors, O&M providers, and distributors to keep projects moving and performing.


👉Contact us here.