Box 2.3: Greenhouse gas emissions due to fuel consumption in generator sets in the city of Bengaluru, Karnataka, India
Bengaluru is one of the metropolitan cities in India with
a substantial presence of small and medium-scale
commercial establishments, large residential complexes,
and individual households. On an average, Bengaluru
faces 1.7 h/month of outages. To be operational, these
establishments depend on small captive power generated
by diesel generator (gen) sets. Three approaches were
used to arrive at the total diesel consumed by these gen
Approach 1: Assessment of direct sales at petrol pump
Bengaluru city has 200 fuel stations, with six different
companies supplying fuel. Depending on the number of
the pumping stations of each company, field survey of 100
stations in the city was done and following relationship
was derived.
sets:
Total diesel consumption=
where fs is the number of sampled fuel stations of a
particular company, FS is the total fuel stations of a
company, and pd is the petrol and diesel sold at the
+ Approach 2: Primary sample survey at consumers' sampled fuel station. Here is the total number of
end.
companies, and j is the total number of petrol stations of
* Approach 3: Diesel consumed during total power each company. The study indicates that the total diesel
cuts in Bengaluru.
sold in cans in Bengaluru is 124.9 million litres, which is
10.9% of the total diesel sold in Bengaluru.
Approach 3: Assessment of diesel consumed during total power
cuts in Bengaluru
It is estimated that, on an average, Bengaluru faces 1.7 h
of electricity outages/month. During this period

Industries consume, annually, 1111 kilolitres of
diesel, which is 9% of the total diesel consumed in
the diesel gen sets in Bengaluru.
+ Approach 1: Assessment of direct sales at petrol
pumps.
Approach 2: Primary sample survey at consumers end
(exxEx
Total diesel consumption=
where eg is the energy generated per establishment
(kWh), E is the number of establishments, fc/eg is fuel
consumed per unit of energy generated in litres/kWh, and
i is the category of establishments under