Skip to main content

India’s wind, solar resources concentrated in southern, western states: study (downtoearth,)

India has huge capacity to develop renewable energy infrastructure. However, wind and solar resources are spatially heterogeneous across India, finds a study conducted by researchers from the Lawrence Berkeley National Laboratory—a member of the national laboratory system supported by the US Department of Energy.

India has set a target of developing 175GW of renewable energy by 2022 and also 40 per cent of total power generation from non-fossil fuel sources by 2030. For this to happen, the country needs to overcome economic and siting challenges, along with power system challenges.

What’s the objective of the study?

The study, conducted by the International Energy Studies Group from the Lawrence Berkeley National Laboratory, used Multi-criteria Analysis for Planning Renewable Energy (MapRE) methodological framework. The broader objective was to “spatially identify the amount and quality of wind and utility-scale solar (a solar facility that generates power and feeds the grid supplying a utility with energy) resource potential in India and the possible siting-related constraints and opportunities for development of renewable resources”.

The study, titled ‘India Renewable Energy Zones’, identifies “cost-effective, equitable, and environmentally sustainable wind, solar PV and concentrated solar power (CSP) zones across India”.

Factors considered for selection of sites that can be developed as renewable energy zones

Cost of electricity
Distance to nearest substation
Road connectivity and presence of water body
Capacity value
Type of land cover
Co-location potential
About 84 per cent of wind zones are on agricultural land
About 84 per cent of wind zones are on agricultural land
States with the highest potential for wind resources
States with the highest potential for wind resources

Findings of the study

Wind resources are concentrated mainly in the western states (Gujarat, Maharashtra and Rajasthan) and southern states (Andhra Pradesh, Karnataka, Tamil Nadu and Telangana)
Solar PV resources are distributed across several states, but Rajasthan, Gujarat, Maharashtra and Madhya Pradesh have the most resource potential
Solar CSP resources are the most limited among the three technologies. CSP potential is highest in Rajasthan, Gujarat, Maharashtra, Andhra Pradesh and Madhya Pradesh.
Half of all wind zones (47 per cent) and two-thirds of all solar PV zones (66 per cent) are more than 25 km away from existing substations with transmission voltage of 220 kV and above. This is a potential constraint when it comes to accessing high voltage transmission infrastructure.
About 84 per cent of all wind zones are on agricultural land. It provides opportunities for multiple uses of land, but may also impose constraints on land availability.
Only 29 per cent of suitable solar PV sites and 15 per cent of Concentrated Solar Power (CSP) sites are within 10 km of a surface water body, suggesting water availability as a significant siting constraint for solar plants.
Availability of groundwater resources was not analysed as part of this study.

States with the highest potential for Solar CSP resources
States with the highest potential for Solar CSP resources

States with the highest potential for Solar PV Resources
States with the highest potential for Solar PV Resources

Scope for developing co-location for wind and solar generation

The research also points out that about a quarter (28 per cent) of all solar PV zones overlap with wind zones, which means it is an opportunity for developing co-location for both. It will also be economical and easy to develop transmission extensions which can be used for both.

Popular posts from this blog

Khar’s experimentation with Himalayan nettle brings recognition (downtoearth)

Nature never fails to surprise us. In many parts of the world, natural resources are the only source of livelihood opportunities available to people. They can be in the form of wild shrubs like Daphne papyracea and Daphne bholua (paper plant) that are used to make paper or Gossypium spp (cotton) that forms the backbone of the textile industry.

Nothing can compete with the dynamism of biological resources. Recently, Girardinia diversifolia (Himalayan nettle), a fibre-yielding plant, has become an important livelihood option for people living in the remote mountainous villages of the Hindu Kush Himalaya.

There is a community in Khar, a hamlet in Darchula district in far-western Nepal, which produces fabrics from Himalayan nettle. The fabric and the things made from it are sold in local as well as national and international markets as high-end products.

A Himalayan nettle value chain development initiative implemented by the Kailash Sacred Landscape Conservation and Development Initiati…

SC asks Centre to strike a balance on Rohingya issue (.hindu)

Supreme Court orally indicates that the government should not deport Rohingya “now” as the Centre prevails over it to not record any such views in its formal order, citing “international ramifications”.

The Supreme Court on Friday came close to ordering the government not to deport the Rohingya.

It finally settled on merely observing that a balance should be struck between humanitarian concern for the community and the country's national security and economic interests.

The court was hearing a bunch of petitions, one filed by persons within the Rohingya community, against a proposed move to deport over 40,000 Rohingya refugees. A three-judge Bench, led by Chief Justice of India Dipak Misra, began by orally indicating that the government should not deport Rohingya “now”, but the government prevailed on the court to not pass any formal order, citing “international ramifications”. With this, the status quo continues even though the court gave the community liberty to approach it in …

Cloud seeding

Demonstrating the function of the flare rack that carries silver iodide for cloud-seeding through an aircraft. 
Water is essential for life on the earth. Precipitation from the skies is the only source for it. India and the rest of Asia are dependent on the monsoons for rains. While the South West Monsoon is the main source for India as a whole, Tamil Nadu and coastal areas of South Andhra Pradesh get the benefit of the North East Monsoon, which is just a less dependable beat on the reversal of the South West Monsoon winds.