Table 9 Comparison of our work with similar research.

From: Sustainable hydroponic production using solar energy and treated greywater within the water-energy-food-environment nexus

References

Employs smart hydroponic farming

Uses renewable energy

Uses treated water

Estimates CO2 emissions

Estimates energy efficiency indices

Evaluates plant quality

Kappel et al. 26

x

x

x

x

x

Saraswathi et al.57

x

x

x

x

x

Eregno et al.59

x

x

x

x

x

Mishra et al.58

x

x

x

x

x

Joshitha et al.60

x

x

x

x

x

x

Neranjan et al.18

x

x

x

Khang et al.16

x

x

x

x

Ahmed and Khalid 17

x

x

x

x

Our study