Assessing the Impact of Load and Renewable Energies’ Uncertainty on a Hybrid System
Issue:
Volume 5, Issue 2-1, March 2016
Pages:
1-8
Received:
30 March 2015
Accepted:
31 March 2015
Published:
17 December 2015
Abstract: As increasing of fossil fuels and the trend of expiring, using of alternative fuels has been on the agenda of most countries particularly in the past two decades. In the meantime, the using of wind energy and solar radiation are extremely popular as sources of green energy and high-efficiency. Hence, the prediction of wind and solar power is important. The power output of these power plants depends on wind speed, temperature and radiation. In this paper, the uncertainty of wind and solar power generation, and load forecasting are considered based on correlation analysis on wind power, solar radiation, and ambient temperature time series. Predicted values are given to the hybrid system (wind–fuel cell–photovoltaic) to provide electrical load for the 24-hours. Finally, the proposed model is applied to demonstrate its effectiveness based on actual examples information of load, wind, radiation, temperature of wind farm and solar power plants.
Abstract: As increasing of fossil fuels and the trend of expiring, using of alternative fuels has been on the agenda of most countries particularly in the past two decades. In the meantime, the using of wind energy and solar radiation are extremely popular as sources of green energy and high-efficiency. Hence, the prediction of wind and solar power is import...
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Improving Electricity Access in Ghana Challenges and the Way Forward
Issue:
Volume 5, Issue 2-1, March 2016
Pages:
9-17
Received:
7 October 2015
Accepted:
2 November 2015
Published:
17 December 2015
Abstract: Growth in demographic requirements, increased urbanization and rural electrification coupled with an ever-increasing technological demand, and the aspiration to transform into a middle-income country have led to a fast growth in energy demand in the past two decades in Ghana. Yet there is a huge deficit in supply and this has become a major limitation to growth and quality of life. As Ghana has devoted itself to universal access to electricity by 2020, the real challenge is in reaching the capacity to meet this goal; and most importantly, ensuring that supply is adequate and reliable. With access to electricity in Ghana been low for some time now with no improvement in sight, there is the need for a study such as this. The paper sought to examine the challenges preventing the progress of accessible electricity in Ghana. The paper adopted a systematic review approach and used publications that focused on or related to the subject understudy. Key findings identified in the paper include; poor pricing, increasing demand and supply shortfalls coupled with irregularities, institutional restrictions, lack of credible off-taker and lack of policy and project continuity. To address these challenges, suggested recommendations include; exploring all means of getting power source, including LNG, Solar, landfill gas and nuclear power, establishing a vibrant and robust power ministry that can help reform and also help in revenue collection.
Abstract: Growth in demographic requirements, increased urbanization and rural electrification coupled with an ever-increasing technological demand, and the aspiration to transform into a middle-income country have led to a fast growth in energy demand in the past two decades in Ghana. Yet there is a huge deficit in supply and this has become a major limitat...
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