International Journal of Energy Technology and Policy (3 papers in press)

• Optimum Price of Electricity in Thermal Generating Station under Deregulation
  by REJI PADMAVATHY, Ashok S, Moideenkutty K.M 
  Abstract: The deregulated market is characterized by a number of power producers trying to sell electric power though bilateral agreements or power exchanges. In the market, pricing based on marginal cost principle is commonly used. Each utility follows its own pricing strategy and causes more price volatility and makes comparison difficult. This paper presents a general model to determine the optimal electricity price at the generator end point. Since price is an important component in deciding the revenues. Arriving at an optimal price is desired by the power generators. Optimal price motivates investment and quality power supply to the terminal point. The proposed model is formulated considering peak/off peak loads, plant load factor, outages, breakdown maintenance and availability of the plant. Penalty is added for not supplying reliable and quality power. The model is dynamic, multivariable and performance based. The developed model is applied to a typical thermal utility in India to determine the electricity price.
  Keywords: Deregulation; Electricity pricing; Energy charges; Demand charges; Genetic Algorithm.
   
• Electricity demand and supply projections for Indian economy
  by Subhash Mallah, N.K. Bansal 
  Abstract: India’s projected economic growth will depend to a great extent on the availability of electricity and oil, the two most important forms of energy for development. The present electricity scenario in India is a gap of more than 10% between demand and supply. It has therefore been considered necessary to forecast electricity demand under the present circumstances. Following the analysis of time series of sectorial GDPs, number of consumers in various sectors and price indices of electricity, a logarithmic linear regression model has been developed to forecast long term end use consumption and demand of electricity up to the year 2045 by taking 2005 as the base year. Using the historical GDP growth in various sectors and corresponding electricity consumption for the period 1971-2005,it is predicted that the total electricity demand will be 5000 billion KWh, where the supply may be only 1500 billion KWh in the business as usual scenario. This may lead to disastrous situation for the country unless drastic policy measures are taken to improve the supply side as well as to reduce demand.
  Keywords: Electricity Requirement, end use consumption, forecasting, GDP, T&D losses, SPSS, time series
   
• Voltage Source Converter with a Transformer As an Electronic Load Controller for a Stand-Alone Power Generation
  by Gaurav Kumar Kasal, Singh 
  Abstract: This paper presents a new configuration of a voltage and frequency controller for a stand alone pico hydro power generating system employing an isolated asynchronous generator (IAG). The proposed controller is an electronic load controller (ELC), which consists of a three leg IGBT (Insulated Gate Bipolar Junction Transistor) based voltage source converter (VSC), a DC chopper and an auxiliary load at its DC bus. The neutral terminal for the consumer loads is created using a star delta transformer. The control algorithm of the controller is developed to control the voltage and frequency of the system under varying consumer loads. The proposed system is modeled and simulated in MATLAB using Simulink and PSB toolboxes. Extensive simulation results are presented to demonstrate the capability of the controller as a harmonic eliminator, a load balancer, a neutral current compensator alongwith voltage and frequency controller.
  Keywords: Stand-Alone Power Generation, Voltage Source Converter, Voltage and Frequency Control, Star Delta Transformer, Asynchronous Generator.