Taking too
much sugar may be bad for your health, but not for your country. Sugar industry
can help ease the energy crisis faced by Pakistan for more than a decade.
The energy
shortage is growing with ever increasing population and rising domestic
consumption. The production gap can be
met by mobilizing sugar mills to produce electricity. The bagasse produced by
sugar mills can be used to produce thermal energy for onsite use as well as
production of electricity.
In many countries
of the world sugar mills are earning more from selling electricity than they
earn from selling sugar. Sugar industry is second largest, with 89 mills; agro
based industry of Pakistan after textile and therefore offers tremendous
potential to fill the energy gap.
A sugar mill
crushing 2000 tons cane can produce 9 MW of electricity after meeting its own
requirement. The total estimated power potential of Pakistan’s sugar industry
is 2000MW. The cost of producing electricity is very low as the fuel (bagasse)
is available at no cost. The raw material need not to be transported so
considerable savings can be made on transportation head. Transportation losses can also be reduced as bagasse
power plants are decentralized. Moreover, there is zero carbon dioxide emission
as bagasse is a biomass. During combustion biomass re-releases carbon dioxide
into the air.
Most of the
sugar mills in Pakistan use bagasse to heat inefficient boilers of 26bar. The
Indian sugar industry is using 50bar boilers, which uses half as much bagasse
as used by 26bar boiler to produce the same megawatts of energy.
The high
pressure boiler (80-100bar) available in Pakistan cost from 700 million rupees
to 1 billion rupees. The high investment involves make it unfeasible for using
these boilers only for 120 days, the cane crushing season. For the rest part of
the year sugar industry wants to utilize coal and other biomass fuels like rice
bran, corn cobs.
