Natural gas consumption declined by 6.7% in FY2008/2009 over the previous year. The decay of natural gas pressure in FY2008/2009 resulted in our natural-gas fired plants being utilised less than planned. In 2009, there were more than 150 incidents of low natural gas pressure which disrupted the smooth operations of our natural-gas fired plants.
Fuel oil consumption dropped by 4.1% in FY2008/2009 compared to the previous FY. This drop would have been greater if not for the decay in the natural gas pressure which necessitated the changeover from natural gas to diesel oil to fulfill regulatory requirements.
Note: Fuel oil refers primarily to heavy fuel oil and intermediate fuel oils. However, the figures include a very small proportion of diesel oil which is used for contingency and peaking purposes.
In PowerSeraya's context, our direct and primary source of energy used for our business (i.e. electricity consumption) is from the fuel oil and natural gas that we use/consume (we measure this in Tonnes or BBTU rather than Joules).