The average lifespan of your hybrid system is component-dependent. Solar panels maintain maximum output and efficiency for 25 to 30 years. Longevity depends on the brand and overall solar panel maintenance, and providers offer their own warranties. Hybrid solar inverters have a shorter lifespan than solar panels, typically lasting between 10 to 15 years. Backup batteries ‌last five to 15 years, with lead-acid batteries having the shortest lifespans at five to 10 years. Lithium-ion batteries last 10 to 15 years on average.