臺灣陸域風力發電之成本效益分析

COST-BENEFIT ANALYSIS OF TAIWAN’S ONSHOREWIND POWER DEVELOPMENT

我國為鼓勵風力發電應用， 訂定了推廣目標及躉購費率機制， 惟目前針對政策的合理性分析仍相當缺乏。本文主要目的為針對臺灣發展陸域大型風力發電進行成本效益分析， 我們根據陸域風電技術的特性及臺灣各地風場狀況， 建立風電供給曲線， 進而探討風力發電應用之投入成本與產出效益。具體而言， 本文探討了以下幾項重要議題： （1） 臺灣陸域風電應用之成本競爭性；（2） 風力發電機組建置之成本與效益； 及（3） 政府現行推廣政策之適當性。結果顯示，我國陸域風電機組的建置仍具成本競爭性， 惟若維持現行躉購費率不變， 似乎將不足以提供投資人足夠的誘因， 來達成所設定之推廣目標。

To encourage wind power installation, Taiwan has set up policy goals of installation and adopted a Feed-in Tariffs (FITs) mechanism for wind power deployment. However, information on whether the goals set and the design of the FITsmechanism are reasonable is still considered insufficient by the general public. This paper aims to conduct a complete cost-benefit analysis for onshore wind turbine development in Taiwan. We use an onshore wind power supply curve to demonstrate the potential cost and benefit of wind power for Taiwan’s electricity requirements. Based on this curve, we examine (1) the competitiveness of wind power installation; (2) the costs and benefits of wind power installation; and (3) the adequacy of existing promotion policies. Our results indicate that Taiwan’s current FITs seem inadequate to stimulate the deployment of sufficient domestic onshore wind turbines to achieve policy targets.