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Upgrading and renovation of old photovoltaic systems

Core Issue: Older PV systems (e.g., over 10 years old) suffer from low module efficiency (15%-18%) and aging inverters, resulting in declining power generation annually. Replacement costs are high and disassembly is difficult.

Solution: We offer a “recycle old modules at a discount + upgrade discount for new modules” service. A professional team assesses the residual value of the old system (up to a 30% discount). We prioritize replacement with high-efficiency modules with a conversion efficiency of 24% or higher, while also upgrading the smart inverter and monitoring system. The renovation process utilizes a “zoned” approach to avoid power outages that disrupt electricity consumption.

Results: System power generation has increased by 40%-60%, recycling old equipment reduces resource waste, and the payback period after the upgrade is shortened to 3-4 years. Existing users receive an additional year of free maintenance service.

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