Why do some commercial electricity in Shantou have fund surcharge and unit price?

Various surcharges and funds are included in the electricity bill. According to the official website, WHO inquired about the commercial electricity consumption in Shantou.

1, all kinds of electricity charges in various places include various surcharges and funds, not just commercial electricity.

2. Collection of funds and surcharges Collection of funds and surcharges include rural power grid repayment funds, major water conservancy funds, urban public utility surcharges, late resettlement support funds for large and medium-sized reservoirs, late resettlement support funds for local reservoirs, and electricity price surcharges for renewable energy.