Solar power generation mainly depends on your supply time and power supply. In terms of power, laptop + indoor light + router = 100 + 2 * 20 + 30 = about 170W. Under normal circumstances, the power of the inverter is 300W. fully sufficient. If you need to increase the capacity, you can consider 500W output power. Basically, 200W will require 0.2 kWh if you use it for 1 hour. The amount of energy storage can be calculated based on the working time. The energy storage of solar power is about 3 times that of normal usage. To avoid normal use on rainy days, solar charging is generally more than 40% of the energy storage capacity.
No way.
When the sun is at its best, the direct power does not exceed 1,000 watts and the panel's conversion power is only 20%, which means that one square meter can produce 200W of power, and the solar panel output DC voltage is only about 20V, which is not standard. Your electrical appliances cannot be used directly.