Offgrid / <1 MW / Horizontal - Horizontal wind turbines with under 1 MW capacity, that generate electricity to be used locally and does not require connection to the power grid.

Offgrid / <1 MW / Vertical - Vertical wind turbines with under 1 MW capacity, that generate electricity to be used locally and does not require connection to the power grid.

Oil tank automatic dehydrators - Pollution abatement devices designed to reduce oil levels in discharged wastewater via dehydration/separation. Used by filling stations and other segments of the petro-chemical industry.

Ongrid / >3 MW / Offshore - Horizontal wind turbines with capacity over 3 MW, that are located offshore and feed the generated electricity onto the power grid.

Ongrid / >3 MW / Onshore - Horizontal wind turbines with capacity over 3 MW, that are located onshore and feed the generated electricity onto the power grid.

Ongrid / 1-3 MW / Onshore - Horizontal wind turbines with capacity between 1 and 3 MW, that are located onshore and feed the generated electricity onto the power grid.

Optimized air traffic management - Set of processes designed to achieve the highest possible productivity of the air fleet and ground facilities. This is accomplished by optimizing flight planning, logistics and air traffic management, while ensuring safety and convenience and minimizing the negative impact on the environment.

Optimized waterway management - Set of processes designed to achieve the highest possible productivity of ships and related facilities (such as ports). This is accomplished by optimizing water traffic planning, logistics and traffic management, while ensuring safety and convenience and minimizing the negative impact on the environment.

Oxygen-enriched combustion - Type of combustion that uses oxygen-enriched burner to increase oxygen content in the combustion air so as to reduce energy loss and increase heating efficiency.