Energy Concepts for Manufacturing Companies

2014 ◽  
Vol 655 ◽  
pp. 27-32 ◽  
Author(s):  
Eric Unterberger ◽  
Florian Karl ◽  
Gunther Reinhart

Industry is one of the major energy consumers in order to fulfill the social responsibility of the energy turnaround, with the result to involve companies to use their own generated renewable energy. This objective poses sever challenges for industry. The occurring volatile energy can only be handled by an energy flexible production, which allows the adaption of different energy levels. These must be defined already in the planning stages, so that the production can react to the varying energy availability. A harmonized energy supply and energy demand requires a method to plan both systems.

Author(s):  
Kostadin Fikiin ◽  
Borislav Stankov

Refrigerated warehouses are large energy consumers and account for a significant portion of the global energy demand. Nevertheless the opportunity for integration of renewable resources in the energy supply of large cold storage facilities is very often unjustifiably neglected, whereas the employment of renewable energy for many other industrial and comfort applications is actively promoted and explored. In that context, the purpose of this chapter is to bridge the existing gap by raising the public awareness of stakeholders, researchers, practicing engineers and policy makers about the availability of a number of smart engineering solutions and control strategies to exploit renewables of different nature (solar, wind, geothermal, biogas, etc.) in the food storage sector, as well as by calling the readers' attention to the specialised knowledge in the matter, which has been published so far.


2017 ◽  
pp. 721-770
Author(s):  
Kostadin Fikiin ◽  
Borislav Stankov

Refrigerated warehouses are large energy consumers and account for a significant portion of the global energy demand. Nevertheless the opportunity for integration of renewable resources in the energy supply of large cold storage facilities is very often unjustifiably neglected, whereas the employment of renewable energy for many other industrial and comfort applications is actively promoted and explored. In that context, the purpose of this chapter is to bridge the existing gap by raising the public awareness of stakeholders, researchers, practicing engineers and policy makers about the availability of a number of smart engineering solutions and control strategies to exploit renewables of different nature (solar, wind, geothermal, biogas, etc.) in the food storage sector, as well as by calling the readers' attention to the specialised knowledge in the matter, which has been published so far.


2021 ◽  
Vol Volume 9, Number 1, Special... (Special Issue...) ◽  
Author(s):  
Maxime Daniel ◽  
Guillaume Rivière ◽  
Nadine Couture

Optimizing microgrids' renewable-energy-consumption rates can be done by energy demand-side management. Shifting consumption at better moments is possible thanks to storage capacities. To explore this context, we consider a new practice aiming at shifting laptops' consumption on workplaces thanks to their batteries. This practice requires providing usage instructions and forecasts on renewable energy availability. In order to do this, we evaluated the usability of a shape-changing cylindrical histogram, during a two-day public event, by asking 90 visitors. We also tested three kinds of motion speed in peripheral vision in order to notify neither disturbing nor irritating, by requiring 30 participants in lab conditions. Our results show success rates over 90% for range and compare tasks, which are necessary to retrieve renewable energy production peaks. Our results show that an exponential speed is the best to design perceptible movements, whereas being as calm as a constant speed. Un moyen d'optimiser le taux d'énergie renouvelable consommé sur les micro-réseaux est la gestion de la demande en énergie. Décaler la consommation aux moments propices est possible avec des moyens de stockage. Pour explorer ce contexte, nous envisageons une nouvelle pratique visant à décaler la consommation des ordinateurs portables sur le lieu de travail grâce à leurs batteries. Cette pratique nécessite de fournir des consignes d'usage et des prévisions de disponibilité des énergies renouvelables. Pour ce faire, nous avons évalué l'utilisabilité d'un histogramme cylindrique à changement de forme, lors d'un évènement public sur deux jours, en interrogeant 90 visiteurs. Nous avons aussi testé trois profils de vitesse des mouvements en vision périphérique de sorte à notifier sans perturber ni agacer, en sollicitant 30 participants en condition de laboratoire. Nos résultats montrent des taux de réussite au-delà de 90% pour des tâches de recherche d'intervalle et de comparaison, nécessaires pour retrouver les pics de production d'énergie renouvelable. Nos résultats montrent qu'une vitesse exponentielle est la plus efficace pour rendre perceptible le mouvement tout en étant aussi peu perturbante qu'une vitesse constante.


2016 ◽  
Vol 106 (04) ◽  
pp. 193-198
Author(s):  
C. Schultz ◽  
F. Keller ◽  
S. Braunreuther ◽  
G. Prof. Reinhart

Unternehmen, die ihren Energiebedarf gezielt am Energieangebot beziehungsweise den aktuellen Strompreisen ausrichten, können schon heute Energiekosten sparen und zur Stabilisierung der Stromnetze beitragen. Der Fachartikel zeigt auf, welche Datengrundlage ein produzierendes Unternehmen für einen flexiblen Energieeinsatz schaffen muss. Ausgehend von Anforderungen der energieorientierten Produktionsplanung und -steuerung wird dargestellt, wie die Datenerhebung, -auswertung und -nutzung gestaltet werden.   Companies which specifically align their energy demand with energy supply or current prices, can already save energy costs and contribute to the stabilization of the power grid. This article points out which data foundation a manufacturing company needs to create for a flexible use of energy. Based on requirements of energy-oriented production planning and control it is shown how the collection, analysis and use of this data can be organized.


2015 ◽  
Vol 105 (03) ◽  
pp. 136-140
Author(s):  
C. Liebl ◽  
R. Popp ◽  
M. F. Zäh

Der Ausbau erneuerbarer Energien in Deutschland konfrontiert die deutsche Industrie mit einem volatilen Energieangebot. Eine Möglichkeit hierauf zu reagieren ist, den Energiebedarf flexibel dem Angebot anzupassen und niedrige Strompreise zu nutzen. Ergänzend zu den bestehenden Bewertungsmethoden wird eine Vorgehensweise vorgestellt, die eine Beurteilung des Potentials an Energieflexibilität einzelner Anlagen erlaubt. Ziel ist es, anhand einer Voruntersuchung entscheiden zu können, ob diese Anlagen einer intensiven Bewertung unterzogen werden sollten.   With the expanded use of renewable energy sources, German industry will be faced with a volatile energy supply. One way to react is to adapt energy demand to energy availability. In addition to existing evaluating methods, an approach to review the potential energy flexibility of production systems is presented. The objective is to be able to decide, if a detailed evaluation of the energy flexibility of a machine is useful.


2014 ◽  
Vol 493 ◽  
pp. 210-214
Author(s):  
Christia Meidiana ◽  
Ismu Rini Dwi Ari ◽  
Ema Pratnya Paramita

The Energy Self-Sufficient Village (ESSV) is one of the main programs from Goverment of Indonesia (GoI) initiated in 2007 and addressed to improve the capability of rural areas to meet the local energy demand from renewable energy. The fulfillment of 60% energy demand is required in ESSV and the source of the energy must be renewable energy. Jarak Village has potentialas to be developed as an ESSV since it has 237 cattles generated manure waste can be converted into biogas. However, the actual conditions showed that the utilization of manure waste as source of biogas is only 14% or about 124,2 kWh covering the energy demand from 40 households. The estimation of the total cattle available in the village can actually covers up to 62% energy demand. The existing numbers of cows generate 82.8 m3 biogas equivalents to 124,2 kWh. Nevertheless, only 124,2 kWh 14% has been consumed by 40 households. It indicates that the consumption of biogas is not optimal. Therefore, the study purposes to evaluate and to estimate the capability of the village to meet the criteria of ESV. With the assumption that there is population growth 0.01%, the criteria of ESV can be fulfilled in 2014. The energy supply of ESV in 2014 is 62%. It indicates that the Jarak Village can actually meet the criteria of ESV in 2014.


2021 ◽  
Vol 11 (4) ◽  
pp. 1819
Author(s):  
Roman Geyer ◽  
Sophie Knöttner ◽  
Christian Diendorfer ◽  
Gerwin Drexler-Schmid ◽  
Verena Alton

The need for decarbonization raises several questions. How can renewable energy supply for the industrial sector be realized in the long term? Furthermore, how must the existing energy system be transformed to achieve the ambitious climate targets in place? In Austria, the share of renewable energy supplying industrial energy demand currently accounts for only 45% of final energy consumption. This clearly shows that a conversion of industrial energy systems is necessary. Different ambitious perspectives for a renewable energy supply for the Austrian industrial sector are calculated for three defined scenarios (base, efficiency, transition) in this paper. In addition, corresponding requirements for the energy infrastructures are discussed. The scenario results show a range of industrial final energy consumption from 78 TWh (efficiency) to 105 TWh (transition) through decarbonizing the industrial energy supply (cf. 87 TWh in 2019). Decarbonization requires an increasing shift towards electrical energy, especially in the transition scenario, whereas in the base and efficiency scenarios, biogenic fuels play an important role. Comprehensive decarbonization and the associated substitution of energy carriers in industry pose significant challenges for the existing energy infrastructure, its expansion, and optimization.


2020 ◽  
Vol 13 (4) ◽  
pp. 235
Author(s):  
Konara Mudiyanselage Gayani Kaushalya Konara ◽  
Akihiro Tokai

Fast growing economy of Sri Lanka with an annual GDP growth rate of 5% has significantly increased demand for energy. As energy supply must grow in a sustainable way to meet the demand, concern over the environmental impact of energy flows have been gaining attention during policy development and implementation. Therefore, there is a need of comprehensively evaluating energy metabolic system in Sri Lanka to identify resource dependencies of the country that must be addressed to increase the sustainability. A conceptual energy metabolic model was developed identifying economic, social and demographic variables affecting energy demand, transformation and supply and GHG emissions in Sri Lanka. Developed model was used to evaluate the current energy flows and forecast the behaviour of energy metabolism while assessing the sustainability of the energy system using number of sustainability indicators. Developed model indicates an average annual growth rate of 4.06% in energy demand, 4.17% in non-renewable energy supply and 3.36% in GHG emissions. Transport sector has the highest GHG emissions percentage of 73%. Sustainability evaluation of the energy metabolic system shows that Sri Lanka is becoming more efficient and less energy intensive over the years. However, increase in GHG emissions per capita and emission intensity has a negative impact on the environmental sustainability while increase renewable energy share in total energy supply can be considered positive. The findings of the research give new insights to the energy system of Sri Lanka which enable energy planners to implement policies to transition towards a more secure and sustainable energy system.


2013 ◽  
Vol 4 (1) ◽  
Author(s):  
Nadiah Lutfi Wakid ◽  
Iwan Triyuwono ◽  
Prihat Assih

<p>Corporate Social Responsibility (CSR) is the liability of an organization that not only provide goods and services that are good for society, but also maintain the quality of the social environment and physical, and also give contribute to community welfare which they are life. The disclosure of corporate social responsibility become a liability for the company in the form PT by UU Perseroan No. 40 Year 2007 about Perseroan Terbatas, Bab V, Pasal 74.  The aim of this research is to test and find the effect of size company, profitability, profile company, size board of commissioners, and leverage financial toward to disclosure of corporate social responsibility on manufacturing companies. Population of this research is manufacturing comoanies year 2008-2011. This research used judgement sampling techniques and obtained sample of 30 companies. Analysis tool used multiple regression analysis and measurement for disclosure of CSR used GRI indicators. The results show that leverage financial influence on the disclosure of corporate social responsibility. In contrast, size company, profitability, profile company, and size board of commissioners has not influence toward to disclosure of corporate social responsibility.</p> <p> </p> <p>Keywords :  size company, profitability, profile company, size board of commissioners, leverage financial, Corporate Social Responsibility</p> <p> </p> <p><strong>ABSTRAK</strong></p> <p>Tanggung jawab sosial perusahaan (CSR) merupakan kewajiban organisasi yang tidak hanya menyediakan barang dan jasa yang baik bagi masyarakat, tetapi juga mempertahankan kualitas lingkungan sosial maupun fisik, dan juga memberikan kontribusi terhadap kesejahteraan komunitas tempat mereka berada. Pengungkapan tanggung jawab sosial menjadi suatu kewajiban bagi perusahaan berbentuk PT berdasarkan UU Perseroan No.40 Tahun 2007 tentang Perseroan Terbatas, Bab V, Pasal 74. Penelitian ini bertujuan untuk untuk menguji dan membuktikan pengaruh ukuran perusahaan, profitabilitas, profil perusahaan, ukuran dewan komisaris, dan leverage keuangan terhadap pengungkapan tanggung jawab sosial pada perusahaan manufaktur. Populasi penelitian adalah perusahaan manufaktur tahun 2008-2011. Penelitian ini menggunakan teknik judgement sampling dan diperoleh sampel sebanyak 30 perusahaan. Alat analisis yang digunakan adalah analisis regresi berganda dan pengukuran pengungkapan CSR menggunakan indikator GRI. Hasil penelitian menunjukkan bahwa leverage keuangan berpengaruh terhadap pengungkapan tanggung jawab sosial. Sementara ukuran perusahaan, profitabilitas, profil perusahaan, dan ukuran dewan komisaris tidak terbukti berpengaruh terhadap pengungkapan tanggung jawab sosial</p> <p> </p> <p>Kata Kunci : ukuran perusahaan, profitabilitas, profil perusahaan, ukuran dewan komisaris, leverage keuangan, Corporate Social Responsibility</p>


2021 ◽  
Vol 2042 (1) ◽  
pp. 012086
Author(s):  
Andrii Zakovorotnyi

Abstract To reduce greenhouse gas emissions, the efficiency of energy supply systems must be increased, for example, using renewable energy sources. Since the generation of renewable energy can depend on weather conditions and other parameters, the use of short- or long-term energy storage enables an increase in the covered building energy demand. Due to the large number of available technologies for renewable energy generation and storage, it is possible to combine these systems into different energy supply concepts. By optimizing and comparing the designed concepts, the most suitable one can be determined with respect to the current and future investments. A comprehensive comparison of energy supply concepts must include both economic and energy evaluation criteria. This study focuses on parametric numerical simulations to identify economically feasible and sustainable energy supply concepts for a practical case of new residential buildings. The results show that electrical storage and on-site power generation can provide the greatest benefits. In contrast, large thermal storage systems are not economically viable.


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