The answer to 'lifespan of generator installation' is that a properly installed and maintained generator can typically last 15-20 years or more. Generators are durable pieces of equipment, but their lifespan depends on factors like usage, maintenance, and environmental conditions.
With regular servicing and proper care, a residential or commercial generator can provide reliable backup power for many years. Proper installation by a licensed electrician is also crucial to ensure the generator functions safely and efficiently over its lifetime.