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Enex Technologies is an Italian multinational company involved in the development of energy-efficient technologies for commercial and industrial refrigeration and HVAC systems . The company focuses on the use of natural refrigerants, including ammonia (R717), carbon dioxide (CO₂ or R744), propane (R290), and water (R718) .

History

Founded in 2022 by entrepreneur and former Carrier Corporation Executive Greg Deldicque , Enex Technologies is the evolution of Enex, established in 2004 by Engineer Sergio Girotto and recognized for its early studies on the adoption of CO₂ as a natural refrigerant in commercial refrigeration systems . This development contributed to a broader industry shift towards reducing the environmental impact of refrigerants, which were traditionally associated with higher levels of greenhouse gas emissions .

As of 2024, François Audo was appointed CEO of the company .

Part of Enex Technologies, Emicon A.C. Spa, focused on natural refrigerant climate control solutions, has issued a €3 million mini-bond to support its growth and investment plans. The bond was equally subscribed by UniCredit and Mediocredito Centrale (MCC) under the "Basket Bond Made in Italy" initiative, which focuses on financing strategic sectors of the Italian economy.

Industry Recognition

In 2024, Enex Technologies is scheduled to participate in Harvard Climate Action Week, being the only Italian company represented at the event .

Notes / Bibliography

1. Non-technological barriers to the diffusion of energy-efficient HVAC&R solutions in the food retail sector – 24th November 2017 https://www.research.unipd.it/bitstream/11577/3276479/1/1-s2.0-S0140700717304656-main.pdf
2. Performance and control of a CO2 dual source solar assisted heat pump with a photovoltaic-thermal evaporator – 5th January 2023 https://www.sciencedirect.com/science/article/abs/pii/S1359431122012169
3. Application of a Novel Two-Stage Evaporator in Air-Conditioning Applications – June 2023 https://www.sintef.no/globalassets/sintef-ocean/coolfish/publications/2023_mt_koster.pdf
4. Commercial refrigeration system using CO2 as the refrigerantSystème frigorifique commercial utilisant le CO2 comme frigorigène – June 2023 https://www.sciencedirect.com/science/article/abs/pii/S014070070400132X
5. Demonstrating technologies towards a carbon neutral food business within the ENOUGH project. The blast freezing case study – 9th June 2023 https://zenodo.org/records/8108492
6. Recent installations of CO2 supermarket refrigeration system for warm climates: Data from the field – January 2014 https://www.researchgate.net/publication/288241347_Recent_installations_of_CO2_supermarket_refrigeration_system_for_warm_climates_Data_from_the_field
7. A new approach to performance data harvesting and processing in commercial refrigeration systems – 2018 https://www.ntnu.edu/documents/1272037961/0/A+new+approach+to+performance+data+harvesting+and+processing+in+commercial+refrigeration+systems_ok.pdf/aad4ad09-e2de-7208-3355-3eae52bb17f0?t=1639474895704
8. Not-in-kind approach to remote monitoring in CO2 refrigeration
9. Systems – 2020  https://www.ntnu.edu/documents/1272037961/0/Not-in-kind+approach+to+remote+monitoring+in+CO2+refrigeration+systems.pdf
10. Experiments and dynamic modelling of dry expansion and flooded evaporators in a CO2 solar assisted heat pump – 25th November 2022 https://www.sciencedirect.com/science/article/abs/pii/S1359431122009024
11. Commercial refrigeration system using CO2 as the refrigerantSystème frigorifique commercial utilisant le CO2 comme frigorigène – 7th November 2004 https://www.sciencedirect.com/science/article/abs/pii/S014070070400132X
12. Optimisation of the throttling system in a CO2 refrigerating machineOptimisation du dispositif de détente d'un système frigorifique fonctionnant au CO2--  December 2023 https://www.sciencedirect.com/science/article/abs/pii/S014070070300077X
13. R744 ejector supported parallel vapour compression system – January 2014 https://www.researchgate.net/publication/287392473_R744_ejector_supported_parallel_vapour_compression_system
14. Experience with ejectors implemented in a R744 booster system operating in a supermarket – January 2014 https://www.researchgate.net/publication/287392721_Experience_with_ejectors_implemented_in_a_R744_booster_system_operating_in_a_supermarket
15. Not-in-kind approach to remote monitoring in CO2 refrigeration Systems – 2020  https://www.ntnu.edu/documents/1272037961/0/Not-in-kind+approach+to+remote+monitoring+in+CO2+refrigeration+systems.pdf/e280de9a-ab87-9f7c-d1b9-8fcb72c7ab41?t=1623176747565
16. Comparative Analysis and Evaluation of a CO2 Transcritical Refrigeration System Before and After Optimization Configurations – June 2019 https://www.researchgate.net/publication/333804916_Comparative_Analysis_and_Evaluation_of_a_CO2_Transcritical_Refrigeration_System_Before_and_After_Optimization_Configurations
17. Energy efficient CO 2 refrigeration units for fishing vessels – June 2021 https://www.sintef.no/globalassets/sintef-ocean/coolfish/publications/2021_mt_semaev.pdf
18. Une société de capital-risque dédiée au froid et à la clim – 25th September 2018 https://www.larpf.fr/no-rubric/4242/une-societe-de-capital-risque-dediee-au-froid-et-a-la-clim   
19. Commercial refrigeration system using CO2 as the refrigerantSystème frigorifique commercial utilisant le CO2 comme frigorigène – 7th November 2004 https://www.sciencedirect.com/science/article/abs/pii/S014070070400132X
20. Co 2 heat pump for domestic hot water https://www.researchgate.net/publication/237444423_CO_2_HEAT_PUMP_FOR_DOMESTIC_HOT_WATER
21. Enex Technologies: François Audo è il nuovo CEO – 14th April 2024 https://www.affaritaliani.it/economia/notizie-aziende/enex-technologies-francois-audo-il-nuovo-ceo-912165.html?refresh_ce
22. Da avversario a risorsa: la CO2 diventa refrigerante naturale per l’edilizia. E abbassa le emissioni – 15th June 2024 https://www.corriere.it/pianeta2030/24_giugno_15/da-avversario-risorsa-co2-diventa-refrigerante-naturale-l-edilizia-abbassa-emissioni-d58fbcf2-2b24-11ef-a732-43d4336d51ec.shtml

1. "Non-technological barriers to the diffusion of energy-efficient HVAC&R solutions in the food retail sector" (PDF). International Journal of Refrigeration. 24 November 2017.
2. Zanetti, Emanuele; Azzolin, Marco; Girotto, Sergio; Del Col, Davide (2023-01-05). "Performance and control of a CO2 dual source solar assisted heat pump with a photovoltaic-thermal evaporator". Applied Thermal Engineering. 218: 119286. doi:10.1016/j.applthermaleng.2022.119286. ISSN 1359-4311.
3. Köster, Lukas. "Application of a Novel Two-Stage Evaporator in Air-Conditioning Applications" (PDF). Masteroppgave - NTNU Norges teknisk-naturvitenskapelige universitet Fakultet for ingeniørvitenskap Institutt for energi- og prosessteknikk. {{cite journal}}: line feed character in |journal= at position 69 (help)
4. Girotto, Sergio; Minetto, Silvia; Neksa, Petter (2004-11-01). "Commercial refrigeration system using CO2 as the refrigerant". International Journal of Refrigeration. Studies And Technologies Related To Ozone Depletion And Climate Change. 27 (7): 717–723. doi:10.1016/j.ijrefrig.2004.07.004. ISSN 0140-7007.
5. Ahsan, Muhammad Mubashir; Rossetti, Antonio; Minetto, Silvia; Fabris, Francesco; Girotto, Sergio (2023-06-09). "Demonstrating technologies towards a carbon neutral food business within the ENOUGH project. The blast freezing case study". {{cite journal}}: Cite journal requires |journal= (help)
6. "Recent installations of CO2 supermarket refrigeration system for warm climates: Data from the field". ResearchGate. January 2014.
7. Girotto, Sergio (2018). "A NEW APPROACH TO PERFORMANCE DATA HARVESTING AND PROCESSING IN COMMERCIAL REFRIGERATION SYSTEMS". Norwegian University of Science and Technology Journal. {{cite journal}}: line feed character in |title= at position 50 (help)
8. "Not-in-kind approach to remote monitoring in CO2 refrigeration systems" (PDF). Norwegian University of Science and Technology Journal. 2020. {{cite journal}}: line feed character in |title= at position 63 (help)
9. Zanetti, Emanuele; Azzolin, Marco; Conte, Riccardo; Girotto, Sergio; Del Col, Davide (2022-11-25). "Experiments and dynamic modelling of dry expansion and flooded evaporators in a CO2 solar assisted heat pump". Applied Thermal Engineering. 217: 118964. doi:10.1016/j.applthermaleng.2022.118964. ISSN 1359-4311.
10. Girotto, Sergio; Minetto, Silvia; Neksa, Petter (2004-11-01). "Commercial refrigeration system using CO2 as the refrigerant". International Journal of Refrigeration. Studies And Technologies Related To Ozone Depletion And Climate Change. 27 (7): 717–723. doi:10.1016/j.ijrefrig.2004.07.004. ISSN 0140-7007.
11. Casson, Vanna; Cecchinato, Luca; Corradi, Marco; Fornasieri, Ezio; Girotto, Sergio; Minetto, Silvia; Zamboni, Lorenzo; Zilio, Claudio (2003-12-01). "Optimisation of the throttling system in a CO2 refrigerating machine". International Journal of Refrigeration. 26 (8): 926–935. doi:10.1016/S0140-7007(03)00077-X. ISSN 0140-7007.
12. "R744 ejector supported parallel vapour compression system". ResearchGate. January 2014.
13. "(PDF) Experience with ejectors implemented in a R744 booster system operating in a supermarket". ResearchGate. Archived from the original on 2024-12-19. Retrieved 2025-01-17.
14. "Not-in-kind approach to remote monitoring in CO2 refrigeration systems". Norwegian University of Science and Technology Library. 2020.
15. "(PDF) Comparative Analysis and Evaluation of a CO2 Transcritical Refrigeration System Before and After Optimization Configurations". ResearchGate. Archived from the original on 2024-12-19. Retrieved 2025-01-17.
16. "Energy efficient CO2 refrigeration units for fishing vessels" (PDF). NTNU Norwegian University of Science and Technology Faculty of Engineering Department of Energy and Process Engineering. 2021. {{cite journal}}: line feed character in |journal= at position 5 (help)
17. "Une société de capital-risque dédiée au froid et à la clim". La Rpf (in French). Retrieved 2025-01-17.
18. Girotto, Sergio; Minetto, Silvia; Neksa, Petter (2004-11-01). "Commercial refrigeration system using CO2 as the refrigerant". International Journal of Refrigeration. Studies And Technologies Related To Ozone Depletion And Climate Change. 27 (7): 717–723. doi:10.1016/j.ijrefrig.2004.07.004. ISSN 0140-7007.
19. "(PDF) CO 2 HEAT PUMP FOR DOMESTIC HOT WATER". ResearchGate. Archived from the original on 2024-12-19. Retrieved 2025-01-17.
20. "Enex Technologies: François Audo è il nuovo CEO". Affaritaliani.it (in Italian). 2024-04-15. Retrieved 2025-01-17.
21. "Emicon A.C. Spa Secures €3 Million Mini-Bond for Production Expansion". refindustry.com. Retrieved 2025-01-17.
22. "Unicredit: sottoscrive con Mcc bond da 3 mln Emicon per sostenere crescita - Borsa Italiana". www.borsaitaliana.it. Retrieved 2025-01-17.
23. "MCC e UniCredit sottoscrivono un minibond da 3 milioni di euro di Emicon". www.teleborsa.it (in Italian). Retrieved 2025-01-17.
24. "MCC e UniCredit sottoscrivono un minibond da 3 milioni di euro di Emicon - Economia e Finanza - Repubblica.it". finanza.repubblica.it (in Italian). Retrieved 2025-01-17.
25. Viggiano, Maria Elena (2024-06-15). "Da avversario a risorsa: la CO2 diventa refrigerante naturale per l'edilizia. E abbassa le emissioni". Corriere della Sera (in Italian). Retrieved 2025-01-17.