India has set the ambitious target of achieving the capacity of
175 Giga – Watts (GW) from renewable sources of energy by the
year 2022, including 100 GW from solar energy and 60 GW from wind
energy. Research studies have concluded that solar energy and wind
energy are complementary to each other and as a result,
hybridization of solar and wind technologies would reduce variable
costs, optimally utilize infrastructure and land since there are
several areas with moderately to high potential for both solar and
wind energy. The Ministry of New and Renewable Energy (MNRE) of the
Government of India seeks to provide a framework for proper
hybridization of wind and solar technologies, promote large grid
connected wind – solar photo – voltaic (PV) system for
optimal and efficient utilization of both infrastructure and land
and thereby reduce variable costs and ensure better grid stability.
In this regard, the MNRE has proposed a draft National Wind –
Solar Hybrid Policy, 2016 (Draft Policy) with the goal of reaching
the target of wind – solar hybrid energy of capacity 10 GW by
the year 2022. The Draft Policy provides that wind – solar
hybrid power plants will be configured to operate at the same grid
connection point. The Draft Policy provides the following important
requirements for wind – solar hybrid power plants:
(i) Integration Process: The approach to
integration of wind and solar energy can be different depending
upon the size of each of the source integrated and the technology
type. The Draft Policy states that in order to achieve the benefits
of a wind – solar hybrid power plant which brings about
optimal and efficient utilization of transmission infrastructure
and better grid stability by reducing the variability in renewable
power generation, it is important that in areas where the wind
power density is high, the solar power hybrid component could be
low and alternatively, high when the wind power density is low.
(ii) Implementation Process: The implementation
strategy for the wind – solar hybrid power system would be
largely dependent on the technology available and the
configurations possible. For existing wind / solar PV systems, the
injection of hybrid power should not be in excess of the
transmission capacity / sanctioned grid connectivity, so as to
ensure that no augmentation of transmission capacity is required.
No additional transmission capacity charges should be levied by the
transmission entity for installation of the hybrid solar / wind
energy components considering that same transmission capacity is
being used. The additional solar/wind power generated from the
hybrid project may be used for captive purpose or may be sold to
the distribution licensees under the mechanism for Renewable Energy
Certificates (RECs) or at the Feed – In Tariff (FIT) as
determined by the State Electricity Regulatory Commissions (SERCs).
In case of new projects, the project developer could either
generate power for captive use or offtake power to the distribution
licensees at a price determined by SERCs, which would be accounted
towards its Renewable Purchase Obligations (RPOs).
(iii) Tariff guidelines and Incentives: The
Central Electricity Regulatory Commission (CERC) shall lay down the
guidelines for the mechanism for determination of tariff and shall
frame regulations for forecasting and scheduling. All fiscal and
financial incentives available to independent wind and solar power
projects shall be made available to wind – solar hybrid power
projects. Low cost financing for hybrid projects may be made
available through Indian Renewable Energy Development Agency
(IREDA) and other financial institutions. Support for development
of standards for hybrid projects shall be provided by the
Government of India.
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guide to the subject matter. Specialist advice should be sought
about your specific circumstances.
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