scholarly journals An Exploratory Study of Renewable Power Sector in India

2017 ◽  
Vol 4 (01) ◽  
Author(s):  
Shukrant Jagotra ◽  
Deepika Kamboj

Indian power generation sector has increased by 40% from 199 GW in FY12 to over 327 GW in FY17 to become the fifth largest power generation sector globally. India‘s power transmission network has also grown in sync with the generation sector to enable the evacuation of additional power produced. Renewable power has played a pivoted role in this expansion with its increased contribution in the overall generation mix from 24.5 GW in FY12 to over 57.3 GW in FY17. This paper discusses several drivers such as government’s renewable power targets, Central and state-level incentives, declining technology costs and facilitating sale of renewable power along with others that continue to outpace the barriers prevalent around poor financial condition of State Electricity Boards, challenges in renewable integration, concerns regarding sustainability of low renewable power tariffs and non-enforcement of renewable purchase obligations. The paper also an outlook of the overall renewable as well as solar and wind technology space.

Author(s):  
Michael Welch ◽  
Andrew Pym

Increasing grid penetration of intermittent renewable power from wind and solar is creating challenges for the power industry. There are times when generation from these intermittent sources needs to be constrained due to power transmission capacity limits, and times when fossil fuel power plant are required to rapidly compensate for large power fluctuations, for example clouds pass over a solar field or the wind stops blowing. There have been many proposals, and some actual projects, to store surplus power from intermittent renewable power in some form or other for later use: Batteries, Compressed Air Energy Storage (CAES), Liquid Air Energy Storage (LAES), heat storage and Hydrogen being the main alternatives considered. These technologies will allow power generation during low periods of wind and solar power, using separate discrete power generation plant with specifically designed generator sets. But these systems are time-limited so at some point, if intermittent renewable power generation does not return to its previous high levels, fossil fuel power generation, usually from a large centralized power plant, will be required to ensure security of supplies. The overall complexity of such a solution to ensure secure power supplies leads to high capital costs, power transmission issues and potentially increased carbon emissions to atmosphere from the need to keep fossil fuel plant operating at low loads to ensure rapid response. One possible solution is to combine intermittent renewables and energy storage technologies with fast responding, flexible natural gas-fired gas turbines to create a reliable, secure, low carbon, decentralized power plant. This paper considers some hybrid power plant designs that could combine storage technologies and gas turbines in a single location to maximize clean energy production and reduce CO2 emissions while still providing secure supplies, but with the flexibility that today’s grid operators require.


Significance Governments are formulating their environmental policies in line with the Paris climate agreement and falling costs make renewables the cheapest option for new generating capacity. Solar and onshore wind are the cheapest forms of power generation and offshore wind is expected to be subsidy-free within five years. Impacts The need to integrate rapid-response energy generation, and to meet new demand forms, will focus attention on boosting system flexibility. Fossil fuel demand for power generation is likely to peak early in countries seeking rapid energy transitions. Enhanced planning and staffing capabilities will be needed to encourage investment at the scale the renewable power sector will require.


2021 ◽  
Vol 1 (1) ◽  
pp. 06-018
Author(s):  
Ebigenibo Genuine Saturday

In this paper, the structure of the Nigerian power sector is examined, the problems in the structure are identified and a new structure is proposed for effective power generation, transmission and distribution. Besides the problems usually canvassed, the current structure is defective from the perspective of the ownership of the power infrastructures, passive involvement of state governments and undue influence of the federal government. The reforms in the sector were driven by the Electric Power Sector Reform Act (EPSRA) of 2005, leading to the creation of Power Holding Company of Nigeria (PHCN) to take both the assets and the liabilities of the then National Electric Power Authority (NEPA), and the subsequent unbundling of PHCN to 18 successor companies – 6 power generating companies, one power transmission company and 11 power distribution companies. The new structure proposed in this work gives room for every state government to own power plants and distribute power in the various states. They can equally buy power from independent power producers. Power plants owned by the federal government in the present structure are to continue sending power to the national grid and made available to states with insufficient power generation in the new structure. Independent power producers can also send power to the national grid. The federal government will continue managing power transmission in the new structure. Each state government will own at least two power distribution companies in partnership with private organizations who will equally have a stake in the ownership of the power generating plants. The tariff of grid-connected power will be higher, encouraging states to go into active power generation. The new structure will enable the federal government to do away with rural electrification programme and other power generation options regulated by the Nigerian Electricity Regulatory Commission which should be under the control of various state governments. New laws are needed in the place of the EPSRA to achieve the new structure. The federal government will make money from the proposed structure instead of spending huge sums of money in the present structure.


2019 ◽  
Vol 2 (2) ◽  
pp. 9-28
Author(s):  
France Onoabedje Akpojedje ◽  
E. C. Mormah

This paper x-rayed the transmission system and rural electrification scheme in Nigeria. The electric power transmission network and rural electrification scheme were critically reviewed in terms of issues, challenges, constraints, roles and current state of the power systems to identify their areas of strength and shortcomings in the Nigeria power sector. The paper further proposes the way forward to enhance the performance of the Nigeria’s electric power transmission system and rural electrification scheme.


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