GBP Achieves 230MW in Solar Repowering Projects with 300,000 Panels Replaced
- 2025/07/30
- News
Tokyo, July 17, 2025 – GBP K.K. announced today that it has successfully completed over 230 megawatts (MW) of solar repowering projects across Japan, including the replacement of more than 300,000 discontinued or broken solar panels. This achievement reinforces GBP’s position as a trusted one-stop provider of repowering services, offering everything from site inspection and custom design to installation, operations and maintenance (O&M), and recycling.
The demand for repowering solutions continues to rise in Japan as an increasing number of early FIT (Feed-in Tariff) projects face declining output, aging equipment, and vulnerability to natural disasters such as typhoons and earthquakes. With many of these systems now over a decade old, GBP provides a cost-effective alternative to full replacement—helping asset owners restore system performance while minimizing downtime and capital expenditure.
GBP’s integrated repowering model addresses the full spectrum of challenges faced by aging solar systems. The company offers custom-manufactured replacement panels that match discontinued models in size and mounting specifications, often with upgraded power output of up to 40%. In addition, GBP provides structural upgrades for mounting systems in harsh environments, junction box replacements with enhanced monitoring capabilities, and inverter (PCS) updates to improve power ratios. The company also supports the transition to aluminum cabling for theft prevention and cost savings, and holds licenses for utility-scale construction projects up to 35MW.
A typical 1MW repowering project involving panel and PCS upgrades has shown to boost annual energy output by more than 40% and increase the system’s internal rate of return (IRR) from 5.2% to 10%, according to GBP’s internal analysis. These gains are delivered through GBP’s in-house capabilities, ensuring short lead times, quality control, and compliance with local regulations.
With over 130 obsolete panel types registered with JPEA and compatibility with more than 1,000 global models, GBP has become a leading partner for solar asset owners looking to maintain profitability beyond the contracted incentive period. The company’s portfolio now includes more than 230MW of repowering projects with an average PR (Performance Ratio) of 98%, and cost reductions of up to 43% compared to full system overhauls.
GBP is now ready to replicate proven success in Japan in overseas markets, helping solar asset owners in regions such as Australia, Europe, and the United States maximize the performance and longevity of their solar plants. GBP offers free IRR simulation and fast-track estimates within two weeks. Interested plant owners are encouraged to provide project location, system capacity, and remaining contracted incentive period via the inquiry form on GBP’s website.
About GBP
GBP K.K. is a pioneering Japanese company specializing in the production and supply of renewable energy products. With a focus on high-quality solar products, GBP has successfully expanded its business across Australia, the USA, and Europe. We pride ourselves on offering superior products at competitive prices while maintaining the highest standards of quality and innovation.
For more information, please visit our website at www.gbp-global.com/en.
or contact us via email : contact@gbp-global.com.For media inquiries or to schedule an interview, please contact: pr@gbp-global.com.