The average US home needs 15-25 solar panels. This depends on your energy consumption, roof size, sun exposure, and panel efficiency.
Most solar panels come with 25-30 year warranties and can last 30+ years with proper maintenance. Efficiency gradually decreases over time.
Solar viability varies by state. Factors include sunlight hours, electricity rates, net metering policies, and state/local incentives. Use our calculators to evaluate.