When it comes to low-carbon living, people often worry about sacrificing convenience, but photovoltaic technology is breaking this misconception. Through the "self use and surplus electricity grid connection" mode, after installing photovoltaic systems in households, daily electricity needs such as air conditioning and water heaters can be directly met by generating electricity during the day. Excess electricity can be sold back to the grid at a rate of 0.5 yuan/kWh, achieving "saving money on electricity consumption and making money on electricity sales". Taking the 5-kilowatt household photovoltaic system in Guangzhou as an example, it generates an average of 6000 kWh per year, covering 60% of electricity consumption, with an annual revenue of over 4000 yuan. Combined with national and local subsidies (such as the 0.55 yuan/kWh subsidy in Guangdong), the investment payback period is shortened to 8-10 years, the system life is as long as 25 years, and the annual maintenance cost is only 8 yuan, which hardly increases the burden.

Although there will be no central subsidies in 2025, local support will continue (such as a maximum subsidy of 3 million yuan for distributed photovoltaics in Guangdong), and full grid connected electricity prices can be enjoyed before April 30th to avoid market volatility risks. Photovoltaic technology has transformed household electricity consumption from "pure expenditure" to "profitable", proving through technology that green living does not require compromise, and that saving money, environmental protection, and convenience can be achieved at the same time.