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Large Scale Grid Integration of
Renewable Energy in India
Amit Kumar
TERI University
India
Content
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•
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Context
Challenges
Way forward
Opportunities for regional cooperation
Context
• 41 GW of RE capacity envisaged by 2017
– Wind: 30 GW
– Solar: 9.5 GW
• Concentrated in few states
– Rajasthan, Gujarat, Maharashtra, Karnataka, Tamil Nadu
• Integrating large capacity, centralized renewable energy
systems with grid
– Mostly at high voltage level, at transmission level
• Integrating small distributed renewable energy systems,
such as solar rooftop systems, with grid
– At lower voltage levels, at distribution level
Large capacity, centralized RE:
challenges
• Intermittency
– Problem of scheduling
– Less expensive power plants may required to be backed
down
– Need for balancing power
• Spinning reserves
• Energy storage
• Grid stability
– Harmonic voltage distortion
• Power congestion in transmission network
Small distributed RE: challenges
• Power quality
– Quality of power being injected into the distribution grid,
this is mainly to do with flicker, harmonics, and DC injection
• Safety
– RE systems injecting power in to the network even when it
is shut down for maintenance
• Grid stability
– High penetration of a large number of distributed RE
generators
• Transaction Costs
– Significantly higher transaction costs for the utilities in
metering, inspection, and maintaining database
Way forward
• Green Corridors
– Transmission system strengthening
• At intra state and inter state level
• To facilitate absorption of RE power within the RE rich states
• To facilitate transfer of RE power from the RE rich potential
States to
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Strong Grid interconnections
Demand forecasting
Demand responsive measures, including smart grids
Establishment of Renewable Energy Management
Centers (REMC) equipped with advanced forecasting
tools
• Energy storage
Opportunities for regional
cooperation
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•
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Knowledge and experience sharing
Best practices in grid management
Regional grids
Collaborative research
– Short-term forecasting
– Advanced inverters
– Storage
Thank you!
[email protected]
www.teriuniversity.ac.in
www.teriin.org