First, advantages
1, environmental protection and energy saving
Photovoltaic power generation is an environmentally friendly, clean and low-carbon power generation method, which will not produce pollution and greenhouse gases, and has a positive effect on reducing energy consumption, alleviating energy crisis and improving environmental pollution.
Step 2 be self-sufficient
After the household photovoltaic system is installed, it can supply self-sufficient power to the family, without extra electricity, which can reduce the cost of household electricity.
3. High reliability
Photovoltaic cells have long-term reliability, no noise, no moving parts, no maintenance, long service life, which can reduce the problems of home power system and low risk maintenance cost.
Second, shortcomings.
1, with high initial investment.
The research, development and manufacturing costs of photovoltaic panels are high, which leads to a large initial investment in installing the whole system.
2. Affected by the weather.
Photovoltaic panels need to receive sunlight to generate electricity, and different weather will affect the power generation performance of household photovoltaic systems.
It takes up a lot of space.
Photovoltaic panels need to be installed outdoors, occupying a certain space, which may be difficult for families with small roofs or unable to install them.
Characteristics of household photovoltaic power generation
1, low power consumption
Generally speaking, the volume of distributed photovoltaic power generation projects is within several kilowatts. Different from centralized power plants, the scale of photovoltaic power plants has little harm to the quality of power generation, so it has little influence on rationality. The return on investment of small and medium-sized photovoltaic systems cannot be lower than that of large ones.
2. Power generation and consumption can coexist.
Large and medium-sized ground power stations are connected to the variable voltage transmission network and only operate as power plants; However, distributed photovoltaic power generation is connected to the distribution network, and electricity consumption coexists, so it is stipulated to concentrate as close as possible. Distributed household photovoltaic power generation follows the basic principles of adapting to the time, cleaning up efficiently, decentralized and reasonable layout, and using nearby, making flexible use of local solar network resources and not reducing fossil fuel transactions.