Solar Panel Reuse and Recycling
HAMADA technology and Marubeni network company Rexia maximize the value of solar panels
Looking ahead to the mass disposal of solar panels expected in the late 2030s, HAMADA established Rexia, a joint venture with Marubeni.
Through the Rexia brand, we are building a reuse-first resource circulation model.
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Point 01
Promoting reuse and recycling
Reusable panels are given a longer life through reuse.
Panels that are difficult to reuse are recycled and turned back into resources using patented technology.
Point 02
Contributing to a circular society
Through integrated support from reuse to recycling,
we help realize a carbon-neutral society.
We make a major contribution to a zero-waste circular society.
Rexia's advanced diagnostic standards turn concerns about used panels into trust
Reuse panels provided through Rexia's platform are limited to those that have passed strict inspections for both appearance and output.
By managing the history of each solar panel and ensuring traceability, we can also provide an industry-first three-year defect warranty.
We turn concerns about used products into trust, delivering reliable quality to domestic and overseas secondary markets with short lead times backed by abundant inventory.
About quality inspection items
We conduct our own inspections on all used solar panels we collect.
-
Appearance inspection
Inspection to check for cracked glass, broken cables, and similar defects
-
Insulation resistance inspection
Inspection to check for insulation failure such as leakage current
-
I-V measurement inspection
Inspection that measures current and voltage using the I-V curve
- We sell only reuse solar panels that have cleared all of these inspection items. You can choose a three-year warranty.
About our original warranty
The reuse solar panels we sell can be used with confidence thanks to thorough inspections and an industry-first three-year warranty.
- Covered
products - Possible on solar panels sold by our company
- Warranty period
- Three years
- Warranty
coverage - Products with natural failure
- Repair reception
support - An operator will assist and guide you
Examples not covered
by warranty
- Product failures caused by human actions or natural disasters are not covered by the warranty. Examples include damage, fire, earthquake, lightning, flood damage, painting, and modification.
- Economic losses and secondary damage caused by failure are not covered by the warranty.
Advanced recycling with a recycling rate of over 90% enabled by the patented Hot Knife Separation Method®
At the core of our technology is the world's only patented Hot Knife Separation Method®.
A knife heated to 300 degrees Celsius cleanly separates cells and EVA sheets without breaking the glass.
This minimizes contamination by impurities and achieves a recycling rate of over 90%.
This advanced material separation technology enables high-value resource recovery.
* Hot Knife Separation Method is a registered trademark of NBC Co., Ltd.
Hot Knife Separation Equipment
Glass recovery
Metal (cell/ribbon) recovery
Hot Knife Processing Cross-section
Realizing advanced solar panel resource circulation nationwide through the Rexia Recycling Network
Through Rexia's nationwide network, panels are collected from discharge sites across Japan using optimal routes.
We can arrange recycling destinations according to the discharge location.
We provide proper treatment with consistent quality regardless of region.
In-house support from solar power installation to removal and treatment
From introducing and installing solar power systems to removing panels at the end of their service life and final proper treatment,
we have built a rare integrated system in Japan that can handle the entire panel lifecycle in-house.
By unifying the contact point, we eliminate process loss, optimize costs, and enable smooth project progress.
We provide peace of mind not only at installation, but also with an eye toward the exit decades later.
Proposal for introducing recycling equipment for solar panel recycling
In preparation for the era of mass solar panel disposal expected in the 2030s,
Hamada was an early entrant into solar panel recycling at its own facility.
By promoting equipment that goes beyond simple treatment to achieve genuinely efficient, high-value resource recovery,
we contribute to making renewable energy truly sustainable.
Point 01
High material purity and recovery rate
Glass, aluminum frames, cell sheets, and other materials are separated with high precision, enabling recovery of high-quality cover glass with minimal contamination.
We maximize their value as sellable resources.
Point 02
Ease of use and efficiency from an on-site perspective
Because this equipment is actually operated at HAMADA, we pay close attention to maintenance methods and operational flow.
We minimize unexpected issues after introduction.
Point 03
Providing accumulated expertise
HAMADA provides expertise only we can offer, including optimal installation layouts, efficient dismantling procedures, and resource recovery routes for collected materials.
We provide this expertise as a package.
Power generation business, O&M services, and introduction proposals centered on reused products
By applying our expertise in the venous side of waste treatment and taking on the arterial role of generating energy,
we realize renewable energy use with an exit strategy that conventional power generation businesses do not have.
Point 01
Circular power generation
through reuse
Based on knowledge developed through our reuse business, we select better panels and develop safe, cost-conscious power generation businesses that make the most of used panel characteristics. By using reuse panels, we reduce initial investment and enable sustainable introduction that lowers both environmental impact and cost. For self-consumption panel installation at factories and warehouses, HAMADA handles everything from introduction and inspection to final recycling, providing total support for decarbonization and green transformation.
Point 02
Reliable cradle-to-grave support
We resolve concerns around disposal and removal, a common issue for many power generation operators. Panels that reach the end of their service life are reliably advanced-recycled. Our responsibility does not end with installation; we support the entire lifecycle, from maintenance during operation to replacing defective panels and final removal.
Point 03
Advanced O&M unlike anything before
In cooperation with Rexia Corporation, we respond quickly and at low cost to damage from natural disasters and power conditioner (PCS) failures or replacements. Through reliable inspection and operation management, we minimize power generation loss and maintain a sustainable energy supply.