However, the smooth running of the new equipment cannot happen without ample power, as the increased equipment makes the power load rise sharply and aging power lines can be a risk, he said.

　　As the unstable voltage can lead to frequent failures in temperature control, Guo reached out to the State Grid Binzhou Power Supply Co for timely help.

　　Du Zuyin, director of Xiahe Town Power Supply Station, led his team to replace a 200 kVA (kilovolt-ampere) transformer for Guo's park, and renewed the previous bare aluminum wires with insulated cables to ensure stable power transmission.

　　He also introduced an inspection mechanism to check the park's power facilities on a monthly basis to prevent potential hazards.

　　“Now with stable electricity and precise operation of the temperature control equipment, my winter jujubes can be harvested about 15 days earlier than usual, hiking my sales significantly,“ Guo said.