1 kilowatt (kW) is equal to 1,000 watts, just as 1,000 watt-hours (Wh) equal 1 kilowatt-hour (kWh). In addition to a host of variables, the amount of energy a solar panel can produce depends on the panel's wattage and the intensity of sunlight to which it's exposed. . An off-grid solar system's size depends on factors such as your daily energy consumption, local sunlight availability, chosen equipment, the appliances that you're trying to run, and system configuration. 526, Fengjin Road, Fengxian District, Shanghai, 201400, China. Our Slogens is "Solar. . The Solar Panel Output Calculator is a highly useful tool so you can understand the total output, production, or power generation from your solar panels per day, month, or year. Optimal solar panel placement is. . A 10kW solar system can produce around 40 kWh per day.