Vol. 7, Special Issue 6 (2019)

Enirrmod (ENergy IRRigation MODel) was developed to predict energy requirements for irrigation. The developed model contains two elements namely crop water requirement model and energy requirements model. The crop water requirement model was developed after analyzing relationship between actual crop yield, potential crop yield, crop yield response factor and soil factor. The computer program was written in C++ to estimate energy requirements. The validation study of model was conducted for the Punjab State. The results indicate that the annual electricity requirements for electricity operated tubewells for irrigation operation during rice growing period (June to October) i.e. kharif season was 64.2 percent of total annual electricity requirements. The predicted consumption of electricity for the Punjab was 3863 M kWh against 4598 M kWh of actual consumption. The actual consumption is 16 percent higher than the predicted consumption. It may be due to free electricity in the state.

Energy required supplying one hectare meter of irrigation water in Punjab state was estimated to vary between 771.85 kWh/ha-m to 1287.56 kWh/ha-m. The variation in energy requirements is attributed due to change in cropping pattern and water table depth in some area of the state. The spatial analysis of total electricity requirement is grouped into three sets of high, medium and low energy requirements. The low level electricity requiring districts (less than 100 M kWh) during kharif were Hoshiarpur, Ropar, Faridkot and Bathinda, the medium energy requirement districts (100 to 200 M kWh) were Kapurthala and Sangrur and the region of high energy requirement (greater than 200 M kWh) were in central plain covering districts of Jalandhar, Ludhiana, Amritsar, Gurdaspur, Patiala and Ferozepur.