[Tata kelola udara atau sering disebut Heating, Ventilation and AirConditioning (HVAC) pada perusahaan farmasi mengkonsumsi energi listriksekitar 30% dari konsumsi listrik keseluruhan. Modifikasi teknologi pendingindengan alternatif teknologi Variable Speed Drive (VSD), Thermal Energy Storage(TES) dan penggabungan keduanya menurunkan konsumsi energi listrik masing –masing sebesar 10%, 30% dan 36%. Penggabungan dua teknologi VSD dan TESmenunjukkan nilai penurunan konsumsi energi listrik paling besar. Dan hasilanalisis keekonomian menunjukan hal yang sama bahwa penggabungan alternatifVSD dan TES layak untuk dipilih. Hasil analisis aliran kas dan incrementalinvestment analysis menunjukan penggabungan teknologi VSD dan TES lebihunggul dibanding alternatif yang lain dengan nilai NPV sebesar $79.185,00 danIRR sebesar 80.1%, pada jangka umur pakai 14 tahun. Tingkat kemungkinanmendapatkan NPV > 0 sebesar 98,5% dan IRR > MARR sebesar 99.5%.;HVAC (Heating, Ventilation and Air Conditioning) on pharmaceuticalcompanies to consume electric energy about 30% of overall electricityconsumption. Modification of cooling technology with alternative technologiesVSD (Variable Speed Drive), (Thermal Energy Storage) and the incorporation ofboth lowering the electrical energy consumption of each 10%, 30% and 36%.Merging two VSD technology and TES showed a decrease in the value of electricenergy consumption at most. And the results of the economic analysis indicatesthat the same thing that the incorporation of VSD and TES alternate eligible to beselected. Results of the analysis of cash flow and incremental investment analysisshowed the incorporation of VSD and TES technology is superior to otheralternatives to the NPV of $ 79,185.00 and an IRR of 80.1%, in the period ofuseful life of 14 years. The rate is likely to get NPV> 0 by 98.5% and IRR> MARRof 99.5%., HVAC (Heating, Ventilation and Air Conditioning) on pharmaceuticalcompanies to consume electric energy about 30% of overall electricityconsumption. Modification of cooling technology with alternative technologiesVSD (Variable Speed Drive), (Thermal Energy Storage) and the incorporation ofboth lowering the electrical energy consumption of each 10%, 30% and 36%.Merging two VSD technology and TES showed a decrease in the value of electricenergy consumption at most. And the results of the economic analysis indicatesthat the same thing that the incorporation of VSD and TES alternate eligible to beselected. Results of the analysis of cash flow and incremental investment analysisshowed the incorporation of VSD and TES technology is superior to otheralternatives to the NPV of $ 79,185.00 and an IRR of 80.1%, in the period ofuseful life of 14 years. The rate is likely to get NPV> 0 by 98.5% and IRR> MARRof 99.5%.]