Is it feasible to install large-area solar panels on the roof of your own home?

According to the more than two hundred square meters mentioned by the subject, the situation of the power station is as follows: the installed capacity is 20KW, and the total investment is about 160,000 yuan. The annual power generation capacity is about 26,000 kWh. The installed capacity is 10KW, and the total investment is about 80,000 yuan. The annual power generation is about 13,000 kWh. At present, the electricity price of photovoltaic poles in the third category of the country is 0.85 yuan/KWH. The power generation above is the annual average, and the daily power generation varies according to weather conditions and seasons. The above is grid-connected power generation. If off-grid power generation is used, the cost is higher, so it is not recommended.