scholarly journals Potential Analysis of Hybrid Renewable Energy Systems for Self-Sufficient Residential Use in Germany and the Czech Republic

Energies ◽  
2019 ◽  
Vol 12 (21) ◽  
pp. 4185 ◽  
Author(s):  
Luis Ramirez Camargo ◽  
Felix Nitsch ◽  
Katharina Gruber ◽  
Javier Valdes ◽  
Jane Wuth ◽  
...  

Independence from the power grid can be pursued by achieving total self-sufficient electricity supply. Such an energy supply model might be particularly interesting for settlements located in rural areas where enough space is available for energy generation installations. This article evaluates how and at what cost electricity demand of residential users across Germany and the Czech Republic could be covered by hybrid renewable energy generation systems consisting of photovoltaics, micro-generation wind turbines and batteries. High-resolution reanalysis data are used to calculate necessary system sizes over a large area by simultaneously accounting for the temporal variability of renewable energy. For every potential location in the research area, the hybrid system requirements for clusters of 50 self-sufficient single-family houses are calculated. The results indicate no general trend regarding the size of the respective technologies, although larger areas where PV-wind power complementarity enables lowering the total system costs and required storage capacities were determined. Assuming that the cluster of households could be constituted and depending on the location, the total installation and operation costs for the proposed systems for a lifetime of 20 years range between EUR 1.8 Million and EUR 5 Million without considering costs of financing. Regions with the lowest costs were identified mainly in the south of Germany.

2012 ◽  
Vol 51 (No. 10) ◽  
pp. 452-454
Author(s):  
M. Hrabánková

The important part of the increase of regional potential is the farming of the land fund. The economic conditions for its utilisation have been already prepared. They are based especially on the drawing of funds of the European Union, namely for the period after the accession of the Czech Republic to the European Union and for the years 2007–2013. The measures concerning the land are included in the prepared programme documentation, especially in the Horizontal Rural Development Plan (HRDP) and in the Operational Programme “Agriculture”. The farmers will obtain the direct payment per area (SAPS) in addition to supports on foregoing measures. The requirements for environment-friendly farming of land will be increased in the future. The economic conditions for next period will concentrate on these priorities. It will concern the securing of public benefit contributing to the sustainable development of rural areas. The project assurance of these trends and their regional monitoring and evaluation will be important.


Kontakt ◽  
2019 ◽  
Vol 21 (4) ◽  
pp. 416-423
Author(s):  
Renata Korcová ◽  
Jana Borská

2021 ◽  
Author(s):  
K.S.L. Mendis ◽  
◽  
K.G.A.S. Waidyasekara ◽  
S.S.C. Ginthotavidana ◽  
◽  
...  

The escalation of global energy demand has enhanced the interest on renewable energy technologies worldwide. The reliance of a single energy source has become problematic, and hybrid renewable energy technology has been identified as a feasible solution. Producing energy to limitless increasing demand is a challenging issue faced by Sri Lanka nowadays. Although, there are some studies carried out for renewable energy systems, solar-wind based hybrid renewable systems is an understudied area in Sri Lankan context. Hence, this paper aims to explore the applicability of hybrid solar-wind renewable energy generation approach for Sri Lanka. The study follows a qualitative approach with semi structured interviews from eight industrial experts, and manual content analysis technique was used for data analysis. The paper discussed the current installation practices of solar and wind technologies, applicability of hybrid solar and wind renewable energy systems and national level contribution for hybrid systems. Finally, a validated model was proposed to implement hybrid renewable energy generation systems for Sri Lanka.


2021 ◽  
pp. 0958305X2110301
Author(s):  
Animesh Masih ◽  
HK Verma

In current scenario, people tend to move towards outskirts and like to settle in places that are close to nature. But, due to urban lifestyle and to fulfill the basic needs, demand of electricity remains the same as in urban areas. This demand of electricity can be only fulfilled by using hybrid renewable energy resources, which is easily available in outskirts. Renewable energy resources are unreliable and more expensive. Researchers are working to make, it more reliable and economic in terms of utilization. This article proposes a metaheuristic grasshopper optimization algorithm (GOA) for the optimal sizing of hybrid PV/wind/battery energy system located in remote areas. The proposed algorithm finds the optimal sizing and configuration of remote village load demand that includes house electricity and agriculture. The optimization problem is solved by minimization of total system cost at a desirable level of loss of power supply’s reliability index (LPSRI). The results of GOA are compared with particle swarm optimization (PSO), genetic algorithm (GA) and hybrid optimization of multiple energy resources (HOMER) software. In addition, results are also validated by modeling and simulation of the hybrid energy system and its configurations at different weather conditions-based results. Hybrid PV/wind/battery is found as an optimal system at remote areas and sizing are[Formula: see text] with cost of energy (COE) (0.3473$/kWh) and loss of power supplies reliability index (LPSRI) (0%). It is clear from the results that GOA based methods are more efficient for selection of optimal energy system configuration as compared to others algorithms.


2008 ◽  
Vol 54 (No. 2) ◽  
pp. 71-76
Author(s):  
L. Svatošová

Regional development strategy has to be designed with knowledge of human resources’ development trends. Monitoring of this factor is of concern namely in rural areas where disfavourable demographic situation may occur. Leaving this problem unsolved would constitute depopulation of certain endangered regions. The paper is focused on analysis of human resources’ condition and development granding groups of settlements by size.


Energy Policy ◽  
2019 ◽  
Vol 133 ◽  
pp. 110881 ◽  
Author(s):  
Konrad Gürtler ◽  
Rafael Postpischil ◽  
Rainer Quitzow

Forests ◽  
2020 ◽  
Vol 11 (6) ◽  
pp. 608 ◽  
Author(s):  
Ratna Chrismiari Purwestri ◽  
Miroslav Hájek ◽  
Miroslava Šodková ◽  
Mathy Sane ◽  
Jan Kašpar

Background and Objectives: Forest-based bioeconomies have been adopted as the national forest strategies in many European countries. However, in the Czech Republic, the bioeconomy has not been officially included in national policies. The main objective of the paper was to review the current forest policy in the Czech Republic in meeting the purposes of the European forest-based bioeconomy. To better understand the opportunities and shortcomings of the forest strategy and the implementation of a forest-based bioeconomy in the country, a comparison study in the Czech Republic and Germany was also carried out. Methods: A review of the forest strategies was done based on the following research questions: (1) How are the bioeconomy principles and priorities present in the Czech National Forest Programme (NFP) as reflected in the EU Forest Strategy, and how does the Czech forest strategy compare to that in Germany? (2) What is the situation concerning the national wood production and consumption to understand the opportunities and challenges of the bioeconomy implementation in the studied countries? Results: The Czech NFP was approved following the pan-European process for the protection of forests in Europe; therefore, it does not directly reflect the 2012 bioeconomy principles, although most of these approaches have been included in this strategy. Different national measures in two studied countries were revealed to achieve the objectives of the forest bioeconomy. The primary contribution from the Czech forestry to the bioeconomy is sustainable forest-based products. A forest bioeconomy is also targeted at mitigating climate change by providing forest biomass for bioenergy. Conclusions: The Czech Republic is in the midst of the adoption process of the bioeconomy strategy. The main challenges faced by the forest-based sector in the country is to fulfil the demand for sustainable forest biomass and high value-added products. Multisectoral collaboration, business diversification, and education for public consumers are needed to increase the growth and job opportunities of the bioeconomy sector in rural areas.


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