Electrode Boiler Technology: BlueTech Award Winner 2016

Owned by Beijing Zeta Energy Technology Co. Ltd., the electrode boiler uses an electrode heating method, which applies voltage to the electrolyte solution between the electrodes. Ions move into the electric field and generate heat. The boiler produces hot water with a thermal efficiency of over 99 percent.

Diagram of the internal structure of the boiler

In areas where grid connections are insufficient, Zeta Electrode boilers are generally wind-powered. They are now widely used in Shandong, Xinjiang, Hebei, Liaoning, and Inner Mongolia, where wind power is plentiful. Over the last ten years, the technology has supplied heating in China for an area of more than over 300,000 m^2.

Use of the boiler has resulted in the following emissions reductions:

Sulfur dioxide (SO2) - 13,896 tons per year
Nitrogen dioxide (NOx) - 3,408 tons per year, and
Particulate matter (PM) 3,120 tons per year.

Its use has replaced the equivalent of over 1,200,000 tons of coal burning annually, that is a reduction in CO₂ emission of 4,400,000 tons per year. It also enables renewable power generation for the grid totalling 3,216 GW/h per year.