scholarly journals Washington Clean Energy Fund Grid Modernization Projects: Economic Analysis

2020 ◽  
Author(s):  
Patrick Balducci ◽  
Kendall Mongird ◽  
Md Jan Alam ◽  
Di Wu ◽  
Vanshika Fotedar ◽  
...  
2021 ◽  
Vol 107 ◽  
pp. 203-208
Author(s):  
Ogheneruona E. Diemuodeke ◽  
Michael Orji ◽  
Clinton Ikechukwu ◽  
Yacob Mulugetta ◽  
Youba Sokona ◽  
...  

This paper presents solar PV electric cooking systems to fill the gap of clean energy stove demand in Africa and in particular in rural communities. The design analyses of four different solar PV electric cooking configurations, based on resistive burner and induction burner, are presented. The levelised cost of energy (LCOE) of the solar PV induction e-cooking, with battery storage, is 0.39 $/kWh. Sensitivity analysis was done to ascertain the affordability range of solar PV e-cooking. It was shown that the combination of the reduced cost of investment and good sunshine would most likely make the solar PV induction e-cooking competitive. However, the acceptability of the solar PV induction cooking will require addressing some important technical, economic, policy and socio-cultural related barriers.


Author(s):  
W. Sanz ◽  
Carl-W. Hustad ◽  
H. Jericha

Carbon Capture and Storage (CCS) is a recognized technology pathway to curb the increasing emissions of carbon dioxide (CO2) from the power generation sector. But most available technologies are still on the study or laboratory-scale level, so that considerable R&D efforts are needed to achieve commercialization level. The Graz Cycle originally presented in 1995 by Jericha [1] is an oxyfuel technology and promises highest efficiency using state-of-the-art turbine materials and improved thermodynamic developments in a comparatively complex interaction of rotating machinery, condensers and heat exchanger components. But although detailed conceptual design for all main components has been presented, there is still a large step towards a Graz Cycle pilot demonstration plant. In order to facilitate construction of a demonstration plant we consider the performance of a near-term Graz Cycle process design based on modest cycle data and available turbomachinery components using a simplified flow scheme. The work is supported by on-going development work for a first generation oxyfuel turbine that has already been undertaken by Clean Energy Systems, Inc. [2]. Their further work on a second generation oxyfuel turbine received $30 million funding support from the U.S. Department of Energy in September 2010 [3]. Two near-term Graz Cycle plants are presented based on basic and advanced operating conditions of the proposed commercially available turbine. Besides the turbine the additional equipment for a first-generation cycle is discussed. The predicted optimum net efficiency is 23.2% (HHV). A near-term zero-emission power plant can only be commercially attractive if it will be deployed in a niche market. Therefore an economic analysis commensurate with an early pre-FEED conceptual study is carried out for the U.S. Gulf Coast where revenue from multiple product streams that could include power, steam, CO2 and water, as well as argon and (potentially) nitrogen from the ASU is provided. The economic analysis suggests that a capital investment of $94 million can secure construction of a 13.2 MWe zero emission oxyfuel power plant and yield a 14.5% (unlevered) return on capital invested.


2022 ◽  
Vol 7 ◽  
pp. 9
Author(s):  
Seyed Amir Kaboli ◽  
Reyhaneh Nazmabadi

There continues to be significant attention and investment in wind power generation, which can supply a high percentage of the global demand for renewable energy if harvested efficiently. The research study is based on techno-economic analysis of the feasibility of implementing wind power generation in Kuwait with a power generation capacity of 105 MW based on 50 wind turbines, which has a major requirement for clean energy. The study focused on three main areas of analysis and numerical modeling using the RETScreen software tool. The first area involved evaluating the performance and efficacy of generating wind power by collecting, analyzing, and modeling data on observed wind levels, wind turbine operation, and wind power generation. The second area comprised an environmental impact review to assess the environmental benefits of implementing wind power. The third area involved economic analysis of installing wind power in Kuwait. The analysis was undertaken to assess the energy recovery time for wind energy and determine the mitigation of global warming and pollution levels, the decrease of toxic emissions, and any cost savings from implementing clean energy systems in Kuwait. Additionally, sensitivity analysis was undertaken to determine the impact of certain variables in the modeling process. The results are used to estimate that the energy price would be $0.053 per kWh for a power generation capacity of 105 MWh based on an initial cost of $168 million and O&M of $5 million for 214,000 MWh of electricity exported to the grid. Moreover, the wind turbine farm will potentially avoid the emission of approximately 1.8 million tonnes of carbon dioxide per year, thereby saving approximately $9 million over 20 years spent installing carbon capture systems for conventional power plants. The wind farm containing a simple wind turbine is estimated to have a payback period of 9.1 years.


2021 ◽  
Vol 9 (2) ◽  
pp. 15-21
Author(s):  
Liji Samuel

Rural electrification is a fundamental factor of poverty mitigation and rural growth of a nation. In India, electricity has not played an active role in the socio-economic progress of the village. Gross Domestic Product (GDP) is growing by 8%, whereas the involvement of agriculture division is 1.9%. The government of India has encouraged the goal of providing electricity to all villages in various phases. Therefore, the aim of this research was to define the techno-economic analysis of decentralized Small Hydro Power projects in Kerala with the help of RET Screen expert software. The objectives are to explore the potential hydropower to be harvested by Small Hydro Power for rural electrification, to assess financial saving and cost analysis and to investigate the environmental impact of the Small Hydro Power in Kerala. The RET Screen expert is used to assess the economic feasibility of a Small Hydro Power system and to recommend the possibility of installing the technology in the Meenvallom SHP in Kerala. The RET Screen expert is a Clean Energy Management Software developed by the Government of Canada, which is a free-of-charge decision support software for pre-feasibility or feasibility analysis and also ongoing energy efficiency performance analysis (Netscreen Canada). An attempt has been made in this study is to evaluate the features of rural electrification in Kerala and the viability of Small Hydro Power (SHP).


2017 ◽  
Author(s):  
Vilayanur V. Viswanathan ◽  
Patrick J. Balducci ◽  
Md Jan E. Alam ◽  
Aladsair J. Crawford ◽  
Trevor D. Hardy ◽  
...  

2021 ◽  
Author(s):  
Jeremy Liu ◽  
Rasish Khatri ◽  
Freddie Sarhan ◽  
Eric Blumber

Abstract A family of “flow-through” turboexpander-generators (TEGs) has been developed by Calnetix Technologies for hydrogen and natural gas pressure letdown applications. A flow-through TEG includes an axial expansion turbine and can be installed directly between two flanges of an existing pipeline. TEGs can be used to generate power throughout the hydrogen and natural gas transmission infrastructure using existing pressure differentials wherever a Joule-Thomson valve is located. These can be upstream, at terminal stations, and downstream, at governor stations. The expander drives a synchronous permanent magnet high-speed generator supported by active magnetic bearings. This paper describes the innovative axial flow-through system architecture, including the use of process gas for cooling the generator rotor and stator. The primary focus of the paper is the economic analysis of the application. Various TEG subsystem design choices and their impact on cost are discussed, including the generator, bearing, expander wheel, seal, and touchdown bearing resilient mount designs. A payback analysis shows that the natural gas TEG has a payback of 2.1 years when a heat exchanger is required for preheating the gas and 1.9 years when waste heat can be used. The hydrogen TEG has a payback of 2.0 years, and does not require external preheating. Finally, a comparison of this technology with other clean energy solutions is presented, using the Levelized Cost of Electricity (LCOE) formulation. The analysis confirms that the LCOE of the expander-generator ($0.40 per megawatt-hour) compares favorably with other types of conventional and renewable energy technologies on a cost basis.


2016 ◽  
Vol 818 ◽  
pp. 119-123 ◽  
Author(s):  
Mohamed Almaktar ◽  
Hasimah Abdul Rahman ◽  
Mohammad Yusri Hassan

An economic study for the photovoltaic (PV) projects by the PV installer is essential to avoid the risk that may incur from the investment. This paper discusses the economic analysis of PV installations specifically for the grid connected (GC) systems. The case study is the 9 kW Solar-Home UTM system which is planned to be a showcase GC zero energy house. The house will be able to sell the excess energy back to the grid according to the Malaysian Feed-in Tariff (FiT) implemented in 2012. The economic study conducted is based on the Net Present Value (NPV) and the Pay-Back Period to determine the profitability and viability of the project. The study is believed to encourage and initiate the public to build a successful investment and contribute in the development and deployment of new clean energy sources.


2015 ◽  
Author(s):  
Patrick J. Balducci ◽  
Trevor D. Hardy ◽  
Di Wu ◽  
Vilayanur V. Viswanathan ◽  
William J. Hutton ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document