Consequences of Current Practices Without factoring in real-time machine degradation, ambient conditions and fuel composition, the traditional method of emissions estimation lacks accuracy when extrapolated into different operating regimes. The accuracy may be improved via more frequent CEMS testing for calibration, but it is very costly, especially for an offshore installation. Depending on the specific regulation that is in force, inaccurate emissions reporting may result in fines for the gas turbine operators. Although the offshore emissions regulation is still in its infancy, the accuracy of our solution may enable emissions trading in the future. The current method of factoring fuel consumption lacks sufficient site-specific accuracy and does not enable emissions trading that would reward operator-initiated process improvements