*4.5. Global Energy Balance*

The global energy network analysis in this case study, shows that with a total of 274.00 MWh/year of the network (*ET*), the energy dissipated by friction (*EFR*) is 11.25 MWh/year (4.10%), the energy required for irrigation (*ERI*), is 74.52 MWh/year and the theoretical energy recoverable (*ETR*) is 188.23 MWh/year (considering the sum of total individual recovery in all irrigation points).

If total energy balance in hydrants is calculated, the distribution of energy in the network is defined by Figure 21. This graphic shows that in the case of carrying out energy recovery at all hydrants, theoretical energy recoverable would be 75.2 MWh/year (27.4% compared to the total energy *ET*).

**Figure 21.** Annual Balance Energy in hydrants.

Finally, the virtual possibility of recovering all of the estimated energy in all irrigations points is 188.23 MWh/year. In this case, the environmental impact *versus* generation with non-renewable resources (e.g., coal and gas) would be a theoretical reduction of 137.4 t of CO2/year or 216.2 t of CO2/year with fuels.
