How much does a 1kW vs 3kW vs 5kW rooftop solar system in Kerala: Cost, Units & Subsidy
As a rooftop solar installer and EPC company with over 5 years of experience in Kerala, having successfully completed 100+ residential solar installations and analyzed 50+ real customer electricity bills and generation reports, we have gained clear, practical insights into how different solar system sizes perform on actual Kerala homes. In this guide, we explain what homeowners can realistically expect when choosing a 1 kW, 3 kW, or 5 kW rooftop solar system, focusing on cost, energy generation, subsidy eligibility, and long-term savings. Kerala Reality: Sunlight, Energy Output & What It Means for Homeowners Based on data from our installations across Kerala, the state receives an average of 3–4 effective peak sun hours per day, including the impact of the monsoon season. Under these real-world conditions, a 1 kW rooftop solar system typically generates around 1,100 to 1,300 kWh per year, which translates to approximately 90–110 units per month. These figures are intentionally cons...