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ABSTRACT The objective of this work was to determine the use and efficiency of energy and to quantify the greenhouse gas (GHG) emissions, per hectare, for the cultivation of pepper, Capsicum anuum L., hybrid MIRELLA F1, using plastic mulch in the open-field. The assays were performed in a farm of Puerto La Boca (1° 20’ 51” S and 80° 43’ 51” W), the precinct of the Puerto Cayo parish of Jipijapa Municipality, Manabí province, Ecuador. The data was collected through field research, between March and September 2021, under observation and timing techniques. There was evidence of energy consumption and production (in the form of pepper berries) of 18,442.29 and 27,702.74 MJ ha-1, respectively, and a total GHG emission of 3,058.90 kg CO2-eq ha-1. The energy efficiency was determined at 1.50, the energy productivity 1.88 kg MJ-1, the specific energy 0.53 MJ kg-1, and the net energy 8,858.46 MJ ha-1. The quotas of direct and indirect energies were calculated at 9,513.15 and 8,929.15 MJ ha-1, respectively, and the proportion of renewable and non-renewable energies at 12,994.03 and 5,448.27 MJ ha-1, respectively. The GHG index per kg of MIRELLA F1 pepper yield was 0.088. (GHG emissions hectare L L. F openfield. openfield open field. open-field 1° 1 (1 20 51 80 43 W, W , W) Municipality province Ecuador research 2021 techniques berries 1844229 18 442 29 18,442.2 2770274 27 702 74 27,702.7 ha1, ha1 ha 1, ha-1 respectively 305890 3 058 90 3,058.9 CO2eq COeq CO2 eq CO ha1. 1. 150 50 1.50 188 88 1.8 MJ1, MJ1 MJ-1 053 0 53 0.5 kg1, kg1 kg-1 885846 8 858 46 8,858.4 951315 9 513 15 9,513.1 892915 929 8,929.1 nonrenewable non 1299403 12 994 03 12,994.0 544827 5 448 5,448.2 0088 088 0.088 ( 2 4 202 184422 44 18,442. 277027 70 7 27,702. ha- 30589 05 3,058. 1.5 MJ- 0. kg- 88584 85 8,858. 95131 9,513. 89291 92 8,929. 129940 99 12,994. 54482 5,448. 008 08 0.08 18442 18,442 27702 27,702 3058 3,058 8858 8,858 9513 9,513 8929 8,929 12994 12,994 5448 5,448 00 0.0 1844 18,44 2770 27,70 305 3,05 885 8,85 951 9,51 892 8,92 1299 12,99 544 5,44 184 18,4 277 27,7 30 3,0 8,8 95 9,5 89 8,9 129 12,9 54 5,4 18, 27, 3, 8, 9, 12, 5,