Emission Standards in India - Generator Sets

Emissions from new diesel engines used in generator sets have been regulated by the Ministry of Environment and Forests, Government of India [G.S.R. 371 (E), 17 May 2002]. The regulations impose type approval certification, production conformity testing and labeling requirements. Certification agencies include the Automotive Research Association of India and the Vehicle Research and Development Establishment. The emission standards are listed below.

Table 1
Emission Standards for Diesel Engines ≤ 800 kW for Generator Sets

Engine Power (P)	Date	CO	HC	NOx	PM	Smoke
		g/kWh				1/m
P ≤ 19 kW	2004.01	5.0	1.3	9.2	0.6	0.7
	2005.07	3.5	1.3	9.2	0.3	0.7
19 kW <>	2004.01	5.0	1.3	9.2	0.5	0.7
	2004.07	3.5	1.3	9.2	0.3	0.7
50 kW <>	2004.01	3.5	1.3	9.2	0.3	0.7
176 kW <>	2004.11	3.5	1.3	9.2	0.3	0.7

Engines are tested over the 5-mode ISO 8178 D2 test cycle. Smoke opacity is measured at full load.

Table 2
Emission Limits for Diesel Engines > 800 kW for Generator Sets

Date	CO	NMHC	NOx	PM
	mg/Nm3	mg/Nm3	ppm(v)	mg/Nm3
Until 2003.06	150	150	1100	75
2003.07 - 2005.06	150	100	970	75
2005.07	150	100	710	75

Concentrations are corrected to dry exhaust conditions with 15% residual O₂.