Issue

System Savings

Financial Benefit

Environmental

benefit

Investment

Payback period

Heat recovery from gas engine:

Steam Saving = (Heat loss × engine load)/2651 (Steam Enthalpy) = 1222.3 kg/h, Yearly Steam Saving = 8,448,570 Kg.

BDT 5,711,233 (US$ 67,990)

1400 tCO₂

annually

Cost of Waste heat recovery system for

1 MW Gas Engine (US$110,000)

19 Months

Reduce gas consumption

Annual average natural gas saving for Power generation: 1,020,968 Nm³

BDT 14.1 million/ (US$ 0.17 million)

Equivalent

2199 tCO₂

emission reduction.

BDT 50 million

(0.60 million US$)

4.6 Months

Efficiency improvement of river

water pumps

Annual Saving = 83,980 kWh.

(Per day running about 12 hours)

BDT 4.37 million (US$ 0.053 million)

BDT 3 million

(0.036 million US$), US$-1785

(Pump Set A and B)

7.65 Months

Efficiency improvement of induction motors.

Saving per

year of operation:

645,120 kWh

BDT 5.20 per kWh for GEG, BDT 8.80 kWh for REB) BDT 3.366 million (US$ 0.041 million)

(BDT 2500 per KW)

Total: BDT 2 million

(0.024 million US$)

7 Months

Energy efficient lighting system

Energy savings:

82,944 kWh/y

value BDT 4.318 million (US$ 0.052 million)

Investment BDT

1.849 million

(0.022 million US$)

5 Months.