Techno-Economic modelling of hybrid renewable mini-grids for rural electrification planning in Sub-Saharan Africa

Access to clean, modern energy services is a necessity for sustainable development. The UN Sustainable Development Goals and SE4ALL program commit to the provision of universal access to modern energy services by 2030. However, the latest available figures estimate that 1.1 billion people are living without access to electricity, with over 55% living in Sub-Saharan Africa. Furthermore, 85% live in rural areas, often with challenging terrain, low income and population density; or in countries with severe underinvestment in electricity infrastructure making grid extension unrealistic. Recently, improvements in technology, cost efficiency and new business models have made mini-grids which combine multiple energy technologies in hybrid systems one of the most promising alternatives for electrification off the grid. The International Energy Agency has estimated that up to 350,000 new mini-grids will be required to reach universal access goals by 2030. Given the intermittent and location-dependent nature of renewable energy sources, the evolving costs and performance characteristics of individual technologies, and the characteristics of interacting technologies, detailed system simulation and demand modelling is required to determine the cost optimal combinations of technologies for each-and-every potential mini-grid site. Adding to this are the practical details on the ground such as community electricity demand profiles and distances to the grid or fuel sources, as well asthe social and political contexts,such as unknown energy demand uptake or technology acceptance, national electricity system expansion plans and subsidies or taxes, among others. These can all have significant impacts in deciding the applicability of a mini-grid within that context. The scope of the research and modelling framework presented focuses primarily on meeting the specific energy needs in the sub-Saharan African context. Thus, in being transparent, utilizing freely available software and data as well as aiming to be reproducible, scalable and customizable; the model aims to be fully flexible, staying relevant to other unique contexts and useful in answering unknown future research questions. The techno-economic model implementation presented in this paper simulates hourly mini-grid operation using meteorological data, demand profiles, technology capabilities, and costing data to determine the optimal component sizing of hybrid mini-grids appropriate for rural electrification. The results demonstrate the location, renewable resource, technology cost and performance dependencies on system sizing. The model is applied for the investigation of 15 hypothetical mini-grids sites in different regions of South Africa to validate and demonstrate the model’s capabilities. The effect of technology hybridization and future technology cost reductions on the expected cost of energy and the optimal technology configurations are demonstrated. The modelling results also showed that the combination of hydrogen fuel cell and electrolysers was not an economical energy storage with present day technology costs and performance. Thereafter, the model was used to determine an approximate fuel cell and electrolyser cost target curve up to the year 2030. Ultimately, any research efforts through the application of the model, building on the presented framework, are intended to bridge the science-policy boundary and give credible insight for energy and electrification policies, as well as identifying high impact focus areas for ongoing further research

Smart Grid Interoperability Laboratory

The Smart Grid Interoperability Laboratory in Petten was inaugurated on 29/11/2018. The Smart Grid Interoperability Laboratory is designed to foster a common European approach to interoperable digital energy, focussing on the smart home, community and city levels. The facility in Petten is part of a larger activity of the Joint Research Centre, as the science and knowledge service of the European Commission, encompassing electric vehicles, smart grids and batteries. The activities in 2019 are highlighted in this report.JRC.C.3-Energy Security, Distribution and Market

The Proposal of the Project and Application of Methodology for Project Management in the Company ZTC Holding, SE

Tato diplomová práce analyzuje současnou situaci ve firmě v oblasti projektového řízení při výstavbě solární elektrárny. A pokusí se na základě norem a metodik projektového řízení navrhnout konkrétní kroky, které povedou ve firmě ke zlepšení řízení projektů. Práce je rozdělena do dvou hlavních částí - teoretické a praktické. První část popisuje společnost ZTC Holding SE a zabývá se teoretickými základy řízení projektů, je zde definován management a jeho funkce, řízení projektu, popis projektu, popis činnosti projektového manažera a jeho týmu. V této části je také teorie časové analýzy projektu, včetně metody Critical Path Method (CPM) a Ganttova diagramu. Druhá část se zaměřuje na analýzu vnějšího prostředí pomocí analýzy PESTLE, analýzy SWOT a analýzy vnitřního prostředí 7S. Tato část také pojednává o přesném vymezení projektu, jeho cílů, které jsou definovány metodou SMART. Tato část končí definováním konkrétních rizik, která se mohou vyskytnout během životního cyklu projektu. Závěr diplomové práce je zaměřen na celkové hodnocení navrhovaných postupů, které by měly zlepšit výkonnost ZTC Holding, SE.This master thesis analyses the current situation in the company on the field of project management in handling of a solar power station construction. On the basis of standards and project management methodologies, specific steps will be proposed to improve the current situation in project management of the company. The thesis is divided into two main parts – theoretical and practical. The first part describes the company ZTC Holding, SE and deals with the theoretical bases of project management, where management and its functions, project management, project description, description of activities of the project manager and his team are defined. In this section, the theory of temporal analysis of the project, including methods of Critical Path Method (CPM) and Gantt diagrams are included as well. The second section applies an analysis of the external environment by PESTLE analysis and SWOT analysis and analysis of the internal environment 7S. This part also discusses exact definition of the project, project objectives defined by SMART methodology, and points out specific risks that may occur during the project. The conclusion of this master thesis is devoted to an overall evaluation of proposed processes, which should improve performance of ZTC Holding, SE.

e-Science Infrastructure for the Social Sciences

"When the term 'e-Science' became popular, it frequently was referred to as 'enhanced science' or 'electronic science'. More telling is the definition 'e-Science is about global collaboration in key areas of science and the next generation of infrastructure that will enable it' (Taylor, 2001). The question arises to what extent can the social sciences profit from recent developments in e-Science infrastructure? While computing, storage and network capacities so far were sufficient to accommodate and access social science data bases, new capacities and technologies support new types of research, e.g. linking and analysing transactional or audiovisual data. Increasingly collaborative working by researchers in distributed networks is efficiently supported and new resources are available for e-learning. Whether these new developments become transformative or just helpful will very much depend on whether their full potential is recognized and creatively integrated into new research designs by theoretically innovative scientists. Progress in e-Science was very much linked to the vision of the Grid as 'a software infrastructure that enables flexible, secure, coordinated resource sharing among dynamic collections of individuals, institutions and resources' and virtually unlimited computing capacities (Foster et al. 2000). In the Social Sciences there has been considerable progress in using modern IT-technologies for multilingual access to virtual distributed research databases across Europe and beyond (e.g. NESSTAR, CESSDA - Portal), data portals for access to statistical offices and for linking access to data, literature, project, expert and other data bases (e.g. Digital Libraries, VASCODA/ SOWIPORT). Whether future developments will need GRID enabling of social science databases or can be further developed using WEB 2.0 support is currently an open question. The challenges here are seamless integration and interoperability of data bases, a requirement that is also stipulated by internationalisation and trans-disciplinary research. This goes along with the need for standards and harmonisation of data and metadata. Progress powered by e-infrastructure is, among others, dependent on regulatory frameworks and human capital well trained in both, data science and research methods. It is also dependent on sufficient critical mass of the institutional infrastructure to efficiently support a dynamic research community that wants to 'take the lead without catching up'." (author's abstract

A Review and Synthesis of the Outcomes from Low Carbon Networks Fund Projects

The Low Carbon Networks Fund (LCNF) was established by Ofgem in 2009 with an objective to “help Distribution Network Operators (DNOs) understand how they provide security of supply at value for money and facilitate transition to the low carbon economy”. The £500m fund operated in a tiered format, funding small scale projects as Tier 1 and running a Tier 2 annual competitive process to fund a smaller number of large projects. By 31st March 2015, forty Tier 1 projects and twenty-three Tier 2 projects had been approved with project budgets totalling £29.5m and £220.3m respectively. The LCNF governance arrangements state that projects should focus on the trialling of: new equipment (more specifically, that unproven in GB), novel arrangements or applications of existing equipment, novel operational practices, or novel commercial arrangements. The requirement that learning gained from projects could be disseminated was a key feature of the LCNF. The motivation for the review reported here was a recognition that significant learning and data had been generated from a large volume of project activity but, with so many individual reports published, that it was difficult for outside observers to identify clear messages with respect to the innovations investigated under the programme. This review is therefore intended to identify, categorise and synthesise the learning outcomes published by LCNF projects up to December 2015