Division 5.1.2 Energy efficiency

United Kingdom

Table 33

BAT-associated energy efficiency levels (BAT-AEELs) for the combustion of process fuels from the chemical industry in boilers

Type of combustion unit	BAT-AEELs^f1 ^f2
These BAT-AEELs do not apply to units operated < 1 500 h/yr.
In the case of CHP units, only one of the two BAT-AEELs ‘Net electrical efficiency’ or ‘Net total fuel utilisation’ applies, depending on the CHP unit design (i.e. either more oriented towards generation electricity or towards heat generation).
These BAT-AEELs may not be achievable if the potential heat demand is too low.
These BAT-AEELs do not apply to plants generating only electricity.
	Net electrical efficiency (%)		Net total fuel utilisation (%)^f3 ^f4
	New unit	Existing unit	New unit	Existing unit
Boiler using liquid process fuels from the chemical industry, including when mixed with HFO, gas oil and/or other liquid fuels	> 36,4	35,6–37,4	80–96	80–96
Boiler using gaseous process fuels from the chemical industry, including when mixed with natural gas and/or other gaseous fuels	39–42,5	38–40	78–95	78–95

Annotations

f1: These BAT-AEELs do not apply to units operated < 1 500 h/yr.
f2: In the case of CHP units, only one of the two BAT-AEELs ‘Net electrical efficiency’ or ‘Net total fuel utilisation’ applies, depending on the CHP unit design (i.e. either more oriented towards generation electricity or towards heat generation).
f3: These BAT-AEELs may not be achievable if the potential heat demand is too low.
f4: These BAT-AEELs do not apply to plants generating only electricity.