This would use technologies such as supercritical boilers - where high temperatures and pressures raise combustion efficiency to unprecedented levels.

Opportunities include increasing the combustion efficiency in the furnaces, which operate non-stop to produce molten glass from raw materials.

An aft mixer may be used to improve combustion efficiency.

This gauge measured the combustion efficiency of the engine.

On average over the year, boiler combustion efficiency has risen from 80% to more than 95%.