How much does it cost to install a home solar power generation system in Guangzhou? Which brand of household photovoltaic system is better?

In Guangzhou, the installation of household solar power generation system is generally 3-5KW, and the investment is 30-50,000 yuan. Photovoltaic companies will design and calculate the return on investment in detail according to the actual situation, and it is best to design the configuration for users according to the cost performance. My roof uses Mixsolar's household photovoltaic system, and there are service points all over the country. The power generation is higher than originally expected. The key is to provide good service, trust them, provide me with a lot of training, and let me install it for my relatives!