India’s renewable energy ministry has finalised a policy
that aims to promote the development of large hybrid power plants, combining
wind turbines and solar photovoltaic (PV) panels.
Solar and wind resources in India are complementary to each
other and the installation of hybrid systems reduces variability, and further
optimises the use of land and transmission capacity, the Ministry of New &
Renewable Energy (MNRE) explains in the document.
As part of efforts to promote such projects, government
entities may invite tenders for new wind-solar PV hybrid capacities or for the
hybridisation of existing parks, with the tariff remaining the main criteria
for selection. Other parameters that may be considered include capacity
delivered at grid interface point and the capacity utilisation factor (CUF). If
battery storage is added to the hybrid facility, bidding factors could include
minimum firm power output throughout the day or for defined periods, the extent
of variability allowed in output power, the price of electricity, etc.
Under the policy, a wind-solar power plant will be
considered “hybrid” if the rated power capacity of one resource is at least 25%
of the rated power capacity of the other resource. Hybrid projects will be able
take advantage of all fiscal and financial incentives available to wind and
solar power projects.
The Central Electricity Authority and Central Electricity
Regulatory Commission (CERC) are to formulate the necessary standards and
regulations for wind-solar PV hybrid projects, such as the metering methodology
and standards, forecasting and scheduling regulations, the renewable energy
certificates (RECs) mechanism, grant of connectivity and sharing of
transmission lines and more.
India aims to have 100 GW of solar power and 60 MW of wind
by 2022. At the end of March 2018 it had nearly 70 GW in renewable power
generation capacity.
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