Division BAT 36 In order to increase the energy efficiency of gas oil combustion in gas turbines, BAT is to use an appropriate combination of the techniques given in BAT 12 and below.

United Kingdom

Technique	Description	Applicability
a.	Combined cycle	See description in Section 8.2	Generally applicable to new units operated ≥ 1 500 h/yr. Applicable to existing units within the constraints associated with the steam cycle design and the space availability. Not applicable to existing units operated < 1 500 h/yr

Technique

Description

Applicability

Combined cycle

See description in Section 8.2

Generally applicable to new units operated ≥ 1 500 h/yr.

Applicable to existing units within the constraints associated with the steam cycle design and the space availability.

Not applicable to existing units operated < 1 500 h/yr

Table 21

BAT-associated energy efficiency levels (BAT-AEELs) for gas-oil-fired gas turbines

Type of combustion unit	BAT-AEELs^f1
These BAT-AEELs do not apply to units operated < 1 500 h/yr.
Net electrical efficiency BAT-AEELs apply to CHP units whose design is oriented towards power generation, and to units generating only power.
	Net electrical efficiency (%)^f2
	New unit	Existing unit
Gas-oil-fired open-cycle gas turbine	> 33	25–35,7
Gas-oil-fired combined cycle gas turbine	> 40	33–44

Annotations

f1: These BAT-AEELs do not apply to units operated < 1 500 h/yr.
f2: Net electrical efficiency BAT-AEELs apply to CHP units whose design is oriented towards power generation, and to units generating only power.