Union Government on 2 September 2015 launched the Indian Wind Resource Atlas at 100 metre level. The Atlas will help policy makers at Centre and State Governments to deal with issues related to tariff fixation, transmission, grade frequency, etc.
It will also help in providing better infrastructure for the investors. The Indian Wind Atlas is an important online GIS (Geographic Information System) tool for identification of the regional and local wind energy potential in India.
It contains average annual values of Wind Speed, Wind Power Density and Capacity Utilization Factor (CUF) calculated for an average 2 MW turbine at 100 m. In the atlas the resultant layers are at very high resolution and joint frequency tables have been derived for the entire country at 500 m resolution.
Also, high resolution Re-analysis data set has been used for the study- NCEP/CFSR which enhanced the accuracy of the mapping. The Atlas uses dynamic meso-micro coupled WRF modelling technique.
Making of the Wind Energy Sector & Resource Atlas
• The Atlas making included usage of scientific combination of satellite and one of the world’s largest number of measured (1300 locations ) ground data.
• Under the direction of Union Ministry of New and Renewable Energy (MNRE), National Institute of Wind Energy created an online GIS based wind resource atlas at with scientific rigor and based on authentic latest available data-sets of wind as well as land geographically spread across India.
• NIWE had already performed the potential estimation study corroborating meso-scale derived wind maps and micro-scale measurements and released Indian Wind Atlas at 50m and indicative values at 80m hub heights with 5km resolution in April 2010 in collaboration with RISO-DTU, Denmark.
• The potential assessment presently has been carried out at a very high (10times finer than 5km) resolution of 500m, using the advanced meso-micro coupled numerical wind flow model and with the corroboration of almost 1300 actual measurements spread all over India.
• The land information has been taken through land availability estimation using authentic data sources of Land Use Land Cover (LULC) in GIS format with detailed information available from Bhuvan Atlas.
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When: 2 September 2015