scholarly journals Financial and Economic Assessment of Tidal Stream Energy—A Case Study

2020 ◽  
Vol 8 (3) ◽  
pp. 48
Author(s):  
Stocker Klaus

This case study is based on actual project and consultancy work, balancing real life experience with a review and analysis of empirical and theoretical literature. Tidal stream energy (TSE) is still a nascent technology, but with much better predictability than the classical alternatives of sun and wind. Being still more expensive than other renewable technologies, it is important to find locations in order to initiate a learning process to bring down cost to a competitive level as it was the case for solar and wind technologies. Locations for an initial phase of operation of TSE small islands in the Philippines (and other Asian countries) were found to be most suitable, because expensive and polluting diesel generators can be replaced and a reliable 24 h electricity supply can be established. Different appraisal methods in different scenarios show that under normal circumstances a hybrid combination of TSE, solar energy and battery storage is financially and economically superior to existing fossil energy based power stations as well as to solar energy alone. However, the traditional financial approaches are not always reliable, in spite of superficial mathematical exactness, and the parameters used must be analysed carefully, especially if we deal with innovative technologies with fast changes. In times of global warming we must also include the controversial issue of evaluating damages from greenhouse gases if choosing fossil alternatives. When evaluating and planning renewable technologies, engineering know-how is important, but insufficient. Since financing is a crucial issue for most renewable technologies with high front loaded cost and long amortisation periods, a thorough and trustworthy financial and economic analysis is necessary not only to avoid financial failure later on, but also to attract stakeholders like private investors, banks and government institutions to support a still unknown technology.

2014 ◽  
Vol 23 (9) ◽  
pp. 974-983 ◽  
Author(s):  
Christine E. Hallgreen ◽  
Hendrika A. van den Ham ◽  
Shahrul Mt-Isa ◽  
Simon Ashworth ◽  
Richard Hermann ◽  
...  

Author(s):  
Angela Vazquez ◽  
Gregorio Iglesias

Potential areas for tidal stream energy development are conventionally selected on the basis of resource assessments. For all the importance of the resource, there are other elements (technological, economic, spatial, etc.) that must be taken into account in this selection. The objective of the present work is to develop a new methodology to select tidal stream hotspots accounting for all these relevant elements, and to apply it to a case study, showing in the process how the potential for tidal energy development can be fundamentally altered by technological, economic and spatial constraints. The case study is conducted in the Bristol Channel and Severn Estuary (UK), one of the regions with the largest tidal resource in the world. First, the most energetic areas are identified by means of a hydrodynamics model, calibrated and validated with field data. Second, the method calculates the energy that can be harnessed in these areas by means of a geospatial Matlab-based program designed ad hoc, and on the basis of the power curve and dimensions of a specific tidal turbine. Third, the spatial distribution of the levelised cost of energy (LCOE) is calculated, and a number of locations are selected as potential tidal sites. The fourth element in the approach is the consideration of restrictions due to overlap with other marine uses, such as shipping. As a result, potential conflict-free areas for tidal stream energy exploitation at an economical cost are identified. Thus, the case study illustrates this holistic approach to selecting tidal stream sites and the importance of elements other than the resource, which – for all its relevance – is shown to not guarantee by itself the potential for tidal stream energy development.


Author(s):  
Sarah Severson ◽  
Jean-Sébastien Sauve

Over the past 10 years, there has been a noticeable increase of crowdsourcing projects in cultural heritage institutions, where digital technologies are being used to open up their collections and encourage the public to engage with them in a very direct way. Libraries, archives and museums have long had a history and mandate of outreach and public engagement but crowdsourcing marks a move towards a more participatory and inclusive model of engagement. If a library wants to start a crowdsourcing project, what do they need to know?  This article is written from a Canadian University library perspective with the goal to help the reader engage with the current crowdsourcing landscape. This article’s contribution includes a literature review and a survey of popular projects and platforms; followed by a case study of a crowdsourcing pilot completed at the McGill Library. The article pulls these two threads of theory and practice together—with a discussion of some of the best practices learned through the literature and real-life experience, giving the reader practical tools to help a library evaluate if crowdsourcing is right for them, and how to get a desired project off the ground.


2014 ◽  
Vol 12 (1) ◽  
pp. 38-55
Author(s):  
Kathy O. Roper ◽  
Bryan Pope

Purpose – A framework for the successful implementation of energy retrofit projects in all settings, including those found within some non-profit organizations, is proposed. Strategies for overcoming common challenges along with experiences gained through a real-life case study of a multi-facility retrofit project were researched. The paper aims to discuss these issues. Design/methodology/approach – This research incorporates strategies identified in existing literature with a variety of techniques and includes information from a detailed case study involving the retrofit of multiple buildings within a public park. Combined research strategies and real-life experience through the case study are used to develop a framework for recommended framework to analyze the completion of retrofit projects. Findings – Common obstacles encountered by energy retrofit projects in the USA and Europe were identified. The retrofit case also experienced these challenges in varying degrees. Application of these practices was implemented and applied to each specific situation within the project and documented for analysis. Originality/value – Current research tends to be focused on the implementation of energy efficient solutions as justified by a quick rate of return and long term savings. However, few projects in not-for-profit situations where a grant or donation is the funding source, and ROI is not measured from a traditional financial standpoint, have been researched.


10.28945/2885 ◽  
2005 ◽  
Author(s):  
Bill Davey ◽  
David Kelly

Transfer of learning can be demonstrated by assessment tasks mirroring real life situations. This can be attempted in real organisations, or by simulating the real, life experience in a structured case study. In this paper we discuss experiences with work situated learning and difficulties that commonly arise. The alternative of encapsulating real life experience in hypermedia based materials is then presented using a number of case studies. Finally a model is presented for producing these “real life” encapsulations which overcomes the problems of lack of structure in individual experience without losing the advantages of common lifelike experiences. Some testing of the model is presented. The model involves the steps of: • Determine real life skills commonly required • Imagine a context rich enough (and having the case study design team with enough knowledge of the context that they can draw from their experience to fill in the holes) • Structure (partition) the case so that team work is possible without too much overlap between tasks. Identify the overlapping points that will force the level of teamwork between students that is intended • Identify parts of the solution development where students can be synchronised using a published solution to part of the problem • Create answers for each skill point starting from the top • Tag each part of the answer with the essential component of information required for an answer • Determine the most likely format that the tagged information would be found in real life • Create the set of tagged information using unskilled labour to provide detailed data • Write the project brief so that an appropriate level of guidance is given for navigating the information sources


2011 ◽  
Vol 26 (2) ◽  
pp. 377-389
Author(s):  
Patrick J Knipe ◽  
Michael E Bitter

ABSTRACT The in-charge accountant (ICA) for the Central Florida Emphysema Foundation (CFEF) audit engagement is left to wrap up the audit while the audit manager is away on vacation and the audit partner unexpectedly leaves for an out-of-state family funeral. Only one outstanding issue remains—accounting for a $5,000,000 cash bequest that CFEF received in the mail shortly after year-end. What is the appropriate accounting? After working through the issue, the ICA ends up on the opposite side of the fence from the client and even an audit partner from an associated firm. What should the ICA do? This instructional case, based on a real-life experience, provides students the opportunity to gain a better understanding of an auditor's professional responsibilities through examination of the issues that arise in the audit of a not-for-profit entity. The case focuses students on important attributes one needs to be a successful CPA—ethics and integrity, perseverance, sound judgment, and decision-making and professional skepticism. Applying their knowledge of GAAP, auditing standards and the American Institute of Certified Public Accountants' [AICPA] (2010) Code of Professional Conduct, students will gain a better understanding of the types of situations that arise in practice and will confront the personal and professional choices that auditors must make.


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