The way to fill the energy gap

Executive Yuan's data of "Energy security and nuclear-free homeland" says: The government will develop renewable energy to fill the gap of energy, with a goal of promoting the ratio of renewable energy to total energy as 3.4% in 2012, to 9.16% in 2025. It means need to increase 0.589 billion kWh per year or CAGR is 7.29%, and renewable energy including wind power, solar energy and hydropower.

Hydropower

There are many rivers in Taiwan, but hydropower is almost fully developed by now. And according to The Electricity Act article 8 : All hydropower generations with the capacity exceeding 20 MW are government-owned. So the contribution of hydropower will be limited.

Solar Energy

Solar energy is limited by annual sunshine hours and diurnal variation. According to the statistical data from Central Weather Bureau (CWB) areas between Taichung and Pingtung, and Taitung with over 1,600 sunshine hours per year are more suitable for solar energy.

The average Annual Sunshine hours

The average Annual Sunshine hours  Source: The Central Weather Bureau (CWB), 1981~2010, wherein

HC: Hengchun, KH: Kaohsiung, TN: Tainan, CY: Chiayi, TC: Taichung, PH: Penghu, DW: Dawu,

HC: Hsinchu, TD: Taitung, DS: Danshui, CG: Chenggong, HL: Hualien, TP: Taipei, YL: Yilian, KL: Keelung

Wind power

Large wind Turbines

There are many large wind turbines in Taiwan, but "low-frequency noise" is a problem for local residents. The alternative is "offshore wind power plants ", but the cost of construction and maintenance will double to over 3million EURs per MW.

Small wind Turbines

According to "The Electricity Act" article 18 : Electricity enterprises may not commence operation until the facility has passed inspection and the electricity license as well as the operation region map has been issued. There are only 4.8KW and 9.8KW small wind turbine submitted by King Energy that are both passed the test of MIRDC (Metal Industries Research & Development Center) and with the value of commercialization.