| Summary: | 碩士 === 國立臺灣師範大學 === 地理學系 === 106 === Electricity is an important type of energy for urban operations. There are many factors affecting urban electricity consumption. However, temperature is the most frequently discussed key factor in terms of natural environment. With the warming of the climate and the urban heat island effect, there are more and more studies on temperature and urban electricity consumption in foreign countries; however, there is few empirical researches in Taiwan, which forms an absence of urban environmental geography.
This study selects Taipei as an empirical research object and uses the hourly electricity consumption of 29 substations of Taipei Electric Power Company's Taipei office for the period from 2014 to 2016, and the atmospheric data of the Taipei Meteorological Bureau's Taipei station in the same period, and convert it into hourly, daily, weekly, and monthly data. The base temperature is objectively defined as the intersection of two regression lines that least-squared fit the monthly-dependent electricity consumption and temperature data. This study compares the similarities and differences between Taipei City's electricity consumption characteristics and foreign cities and analyzes the regression relations between apparent temperature, temperature, and power consumption.
The results show that: (1)regardless of the temperature value, urban electricity has a certain base load; (2)there is no obvious heating degree-days(HDD) in Taipei City, but the cooling degree-days(CDD) are significant; (3)temperature and electricity consumption have a nonlinear relationship, and when the temperature is lower than the base temperature, the electricity is not sensitive to the temperature change. When the temperature is larger than the base temperature, the electricity rises obviously with the temperature rise; (4)when the temperature value is larger than the base temperature,temperature and apparent temperature have no significant difference in coefficient of determination (R2) of electricity consumption;(5)when the temperature value is larger than the base temperature, the sensitivity of the relationship between the degree of cooling degree on the working day and the electricity consumption is higher than that of the holiday; (6) when the temperature value is larger than the base temperature, the CDD in the afternoon and evening hours are more sensitive to the electricity consumption compared with that in early morning.
|
|---|
