Cost
It may seem intuitive that used panels offer lower upfront costs, but are they often more expensive, especially in the long run. New panels qualify for Small-scale Technology Certificates (STCs), which significantly reduce the cost of new systems. Second-hand panels are ineligible for these benefits, negating potential savings.
Efficiency
Used panels typically have lower efficiency due to age and wear. This means less energy production and smaller electricity bill savings compared to new panels.
Warranty
Most warranties become void when panels change ownership. This leaves you unprotected against potential defects or failures. Additionally, second-hand panels may have hidden damage, increasing the risk of poor performance or safety issues.
Technology Advancements
Solar technology evolves rapidly. New panels offer superior efficiency and features compared to older models, potentially providing better long-term value despite higher initial costs.
Conclusion
While second-hand solar panels might seem cost-effective initially, they often prove less beneficial in the long term. The lack of warranties, reduced efficiency, and ineligibility for government incentives make new panels a more reliable and potentially more cost-effective choice for most homeowners.
