India aims to meet its growing power demands through the expansion of its renewable energy capacity. This warrants a strong transmission infrastructure to integrate and evacuate renewable energy, as a transmission network acts as the backbone of power systems to transfer power from generation stations to load centres. As the country works towards this mission, a thorough transmission network analysis is needed to design a power evacuation scheme and assess technical feasibility. CSTEP supports transmission utilities to strengthen their transmission infrastructure and integrate a higher share of renewable energy to provide a reliable supply.
An empirical model for ramp analysis of utility-scale solar PV power
Short-term variability in the power generated by utility-scale solar photovoltaic (PV) plants is a cause for concern for power system operators. Without quantitative insights into such variability, system operators will have difficulty in exploiting grid integrated solar power without negatively impacting power quality and grid reliability. In this paper, we describe a statistical method to empirically model the ramping behavior of utility-scale solar PV power output for short time-scales.
Competitive Bidding for the Wind Sector
CSTEP organised a stakeholder consultation workshop on the wind energy sector at the request of the Ministry of New and Renewable Energy (MNRE) recently. The main objectives of this workshop were to discuss the results of the national wind potential reassessment study conducted by CSTEP, use geo-spatial analysis to locate high potential wind zones for further development, and discuss mechanisms to ease the problems currently plaguing the sector, such as inadequate site allotments, inefficient power purchase agreements, pricing of renewable energy etc.
Quantifying PhotoVoltaic Power Variability Using Lorenz Curve
Short-term variability of utility-scale solar PhotoVoltaic (PV) plant is a significant issue for grid reliability. It is necessary to quantify the solar power variability in order to analyze the power variations on the electricity distribution network. In this paper, a Lorenz curve-based method is described to quantify the variability of power output from a megawatt-scale solar PV plant. The proposed method is used to analyze the power variability of Yelesandra PV power plant located in the state of Karnataka, India.
Correlation Between Central Receiver Size and Solar Field Using Flat Heliostats
In Central Receiver Systems (CRSs), thousands of heliostats track the sunrays and reflect beam radiation on to a receiver surface. The size of the reflected image and the extent of reflection from the heliostats are one of the important criteria that need to be taken into account while designing a receiver, since spillage losses may vary from 2 to 16% of the total losses. The present study aims to determine the size of an external cylindrical receiver, such that the rays reflected from all the heliostats in the field are intercepted.
Leveraging energy efficiency pathways for the sustainable design of appliances, buildings and ICT products
In this paper, we present experimental results on specific energy consumption (SEC) in a number of manufacturing processes.
Energy Quarterly: With steel, cement, and mortar
Steel and cement have become engineering workhorses for the industrial world. They may lack the glamour one perceives in novel materials, but they provide the wherewithal for building a prosperous and equitable industrial world.
How Did China Become the Largest Solar PV Manufacturing Country?
Addressing the challenges of RE manufacturing in India: Horizon 2032
A Statistical Model for Wind Power on the Basis of Ramp Analysis
Due to stochastic nature of wind distribution, wind power output comes with unscheduled changes called ramp events. In this paper, a semi-analytical approach is considered to analyze the distribution of ramp events. A simple empirical equation is derived based on the probability of wind ramp events considering the stochastic nature of wind power distribution for the Indian state of Karnataka.
An Empirical Model of Power Curve of a Wind Turbine
The power curve of a wind turbine grows exponentially as a function of wind-velocity if the measured wind-velocity varies between the cut-in velocity and the rated velocity In this study, we propose an empirical, two-parameter explicit model of the power curve for a wind turbine.