Abstract

An assessment of wind energy potential based on wind speed data over the Indian subcontinent has been made using high spatio-temporal resolution global reanalysis for the period from 1979 to 2018. Regions of high wind speed exceeding 4.5 m/s are identified over West Rajasthan, West Gujarat, Saurashtra and Kutch, Central Maharashtra, Interior Karnataka, and Rayalaseema. Threshold wind speeds are noted to occur during the daytime, and during the summer months from May through September. Wind speeds and the spatial extent of threshold winds increase rapidly with height below 40 m and then gradually up to 100 m. The wind power density is highest between 50 and 80 m, with the potential highest over Gujarat, Kutch, and Interior Karnataka and moderate over Saurashtra and Rayalaseema. This study also notifies that offshore wind potential is higher than over land, and most of the western parts of India are congenial for low wind farming. The present study clearly delineates wind speed distributions and wind power productivity regions over the entire Indian subcontinent. The results would provide authentic wind speed and wind power potential information that would be useful for the industries, government agencies, and industries concerning wind harness over India.

Research Highlights

1. 1.

   Wind power potential is assessed over the Indian subcontinent.

2. 2.

   Spatial regions of wind speeds at different thresholds were identified.

3. 3.

   Durations of wind speed hours per day for different thresholds were estimated.

4. 4.

   Wind power potential at different heights was evaluated.

5. 5.

   Favourable regions for wind farming over the Indian subcontinent were presented.

中文翻译：

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使用高分辨率的全球再分析数据评估印度的风能潜力

摘要

根据印度次大陆的风速数据，使用高时空分辨率全球再分析方法对1979年至2018年进行了风能潜力评估。在西拉贾斯坦邦发现了风速超过4.5 m / s的区域，西古吉拉特邦，索拉什特拉邦和库奇，马哈拉施特拉邦中部，卡纳塔克邦内部和拉雅拉瑟玛。阈值风速在白天以及从五月到九月的夏季月份出现。高度在40 m以下时，风速和阈值风的空间范围会迅速增加，然后逐渐上升到100 m。风能密度在50至80 m之间最高，古吉拉特邦，库奇和内卡纳塔克邦的风能密度最高，而索拉什特拉和拉亚拉塞玛的风能密度最高。这项研究还表明，海上风能的潜力大于陆地上的潜力，而且印度西部的大多数地区都适合进行低风能耕作。本研究清楚地描绘了整个印度次大陆的风速分布和风力发电区域。结果将提供真实的风速和风能潜力信息，这将对印度的风电行业，政府机构和行业有用。

研究重点

1. 1。

   对印度次大陆的风电潜力进行了评估。

2. 2。

   确定了在不同阈值的风速的空间区域。

3. 3。

   估算了不同阈值下每天的风速小时数。

4. 4，

   评估了不同高度的风力发电潜力。

5. 5，

   介绍了印度次大陆上风电场的有利地区。