HOMER를 이용한 오피스건물의 신재생에너지최적설계에 대한 고찰

• Published in: 한국태양에너지학회 논문집, 41(3) pp. 149 - 156
• Main Author: 이병두
• Format: Journal Article
• Language: Korean
• Published: 한국태양에너지학회 01.06.2021
• Subjects: 기타공학
• ISSN: 1598-6411; 2508-3562

The purpose of this study was to conduct optimal renewable energy analysis of the freezer andboiler application of a typical office building using a Homer (Hybrid Optimization Model forElectric Renewables) program developed by the NREL (National Renewable Energy Laboratory)program. The Stand Alone Model and Grid-Connected MODEL were use to derive the optimumcombination of NPC (Total Net Present Cost). The results indicated that the optimum value forthe Stand Alone Model is 30 kW PV, 50 KW FC, 30 KW Battery, and the GRID-ConnectedModel was derived to be optimal to use only GRID. Since there is no renewable energy that hasnot yet reached Grid Parity, this was considered a predictable result, which further analyzed theoptimal combination according to the change in electricity prices and gas prices. The result wasoptimal (GRID + PV combination) when the current electric dermal is about 2.5 times (gasprices). In conclusion, when the new renewable energy is applied, the PV was more economicalthan other renewable energy sources, and even if the gas struggle (if the electricity price of$1.2/kWh) is constantly rising, gas prices were not a major factor in the selection of energycombinations. KCI Citation Count: 0