scholarly journals The Impact of COVID-19 on Electricity Demand Profiles: A Case Study of Selected Business Clients in Poland

Energies ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 5332 ◽  
Author(s):  
Marcin Malec ◽  
Grzegorz Kinelski ◽  
Marzena Czarnecka
Keyword(s):  
Energy Consumption ◽  
Electricity Consumption ◽  
Electricity Demand ◽  
Energy Prices ◽  
Total Change ◽  
Rapid Changes ◽  
Sales Company ◽  
Energy Companies ◽  
The Impact

The COVID-19 pandemic has caused changes in electricity demand and, consequently, electricity consumption profiles. Given the rapid changes in energy prices, it is significant from the perspective of energy companies, and forecasting consumed energy volume. A necessity for accurate energy volume planning forces the need for analyzing consumers’ behaviors during the pandemic, especially under lockdowns, to prepare for the possibility of another pandemic wave. Many business clients analyzed in the paper are economic entities functioning in sectors under restrictions. That is why analyzing the pandemic’s impact on the change in energy consumption profiles and volume of these entities is particularly meaningful. The article analyzes the pandemic and restrictions’ impact on the total change of energy consumption volume and demand profiles. The analysis was conducted basing on data collected from a Polish energy trading and sales company. It focused on the energy consumption of its corporate clients. Analyzed data included aggregated energy consumption volumes for all company’s customers and key groups of economic entities under restrictions. The analysis demonstrates the influence of pandemic restrictions on energy consumption in the group of business clients. Significant differences are observable among various sectors of the economy. The research proves that the largest drops in energy consumption are related to shopping centers and offices. Altogether, the restrictions have caused a 15–23% energy consumption drop during the first lockdown and a maximum 11% during the second against expected values.

scholarly journals A Study on the Energy Consumption of the Electrical and Electronic Household and Office Equipment in Standby and Off-Mode

2021 ◽  
Vol 21 (1) ◽  
pp. 26-30
Author(s):  
A. Vasiliu ◽  
Otilia Nedelcu ◽  
O. Magdun ◽  
I.C. Sălişteanu
Keyword(s):  
Energy Consumption ◽  
Environmental Effects ◽  
Electricity Consumption ◽  
Smart Devices ◽  
European Committee ◽  
Control Functions ◽  
Design Requirements ◽  
The Impact ◽  
Office Equipment

Abstract The most recent generation of the electrical and electronic household and office equipment is far more efficient than its predecessor, but it is still improvable. The smart equipment, when it is used, adds the advantages of the supplementary control functions with the requirements of beeing electrically supplied. By interconnecting the smart devices in a data network, some of the energy consumption occurs even in the non-active states. These states, either a “stand-by” mode or an “off-line” mode, according to the European Committee directives, imposes maximum limits for the electricity consumption, thus an eco-design of the electrical and electronic equipment. The impact of these eco-design requirements on household appliances and office equipment with repercussions in their operation and use, as well as the energy and environmental effects, are dealt in this paper, based on a case study.

The Nexus between Financial Development, Economic Growth and Energy Consumption in India: A VECM Technique

2020 ◽  
pp. 602-612
Keyword(s):  
Economic Growth ◽  
Energy Consumption ◽  
Financial Development ◽  
Consumer Price Index ◽  
Development Economic ◽  
Energy Prices ◽  
Vector Error Correction ◽  
Percent Increase ◽  
Growth Energy ◽  
The Impact

The demand for energy consumption requires efficient financial development in terms of bank credit. Therefore, this study examines the nexus between Financial Development, Economic Growth, Energy Prices and Energy Consumption in India, utilizing Vector Error Correction Model (VECM) technique to determine the nature of short and long term relationships from 2010 to 2019. The estimation of results indicates that a one percent increase in bank credits to private sector results in 0.10 percent increase in energy consumption and 0.28 percent increase in energy consumption responses to 1 percent increase in economic growth. It is also observed that the impact of energy price proxied by consumer price index is statistically significant with a negative sign indicating the consistency with the theory.

scholarly journals Decomposition Analysis of the Evolution of the Local Energy System as a Tool to Assess the Effect of Local Actions: Methodology and Example of Malmö, Sweden

Energies ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 461
Author(s):  
Isabel Azevedo ◽  
Vítor Leal
Keyword(s):  
Local Level ◽  
Ghg Emissions ◽  
Decomposition Analysis ◽  
Specific Effect ◽  
Energy System ◽  
Local Energy ◽  
Total Change ◽  
The Impact ◽  
Change Mitigation

This paper proposes the use of decomposition analysis to assess the effect of local energy-related actions towards climate change mitigation, and thus improve policy evaluation and planning at the local level. The assessment of the impact of local actions has been a challenge, even from a strictly technical perspective. This happens because the total change observed is the result of multiple factors influencing local energy-related greenhouse gas (GHG) emissions, many of them not even influenced by local authorities. A methodology was developed, based on a recently developed decomposition model, that disaggregates the total observed changes in the local energy system into multiple causes/effects (including local socio-economic evolution, technology evolution, higher-level governance frame and local actions). The proposed methodology, including the quantification of the specific effect associated with local actions, is demonstrated with the case study of the municipality of Malmö (Sweden) in the timeframe between 1990 and 2015.

The impact of sustainable architecture patterns in optimizing energy consumption (Case Study: hot and dry climate)

2015 ◽  
Vol 16 (SE) ◽  
pp. 531-538
Author(s):  
Adel Ataei Karizi ◽  
Mahjoobeh Noohi Bezenjani
Keyword(s):  
Sustainable Development ◽  
Global Warming ◽  
Energy Consumption ◽  
International Level ◽  
Natural Habitats ◽  
Sustainable Architecture ◽  
Water And Soil Pollution ◽  
Climate Analysis ◽  
The Impact

Today, the environment, optimizing energy consumption and sustainable development have become the most important issues at the international level. Increasing population growth has disastrous effects on Earth's natural habitats and issues such as general global warming, increase in greenhouse gases in the atmosphere that cause global warming, air, water and soil pollution all lead to irresponsible consumption of energy. This paper tries to evaluate sustainable patterns in warm and dry areas that with the climate analysis and contemporary comparison of design in hot and dry climate while clarifying various aspects, explain the impact of environmental factors in the formation of sustainable architecture and the use of applied patterns to design a sustainable architecture. It have been used analytical method, as well as library and documentary research in this study.

scholarly journals Assessing Households’ Gas and Electricity Consumption: A Case Study of Djelfa, Algeria

2018 ◽  
Vol 37 (4) ◽  
pp. 111-129 ◽  
Author(s):  
Soufiane Boukarta ◽  
Ewa Berezowska-Azzag
Keyword(s):  
Energy Consumption ◽  
Structural Equation ◽  
Census Data ◽  
Population Distribution ◽  
Electricity Consumption ◽  
Principal Component ◽  
Building Energy Efficiency ◽  
Housing Type ◽  
Bivariate Correlation ◽  
The Impact

Abstract Households are the major energy consumer and contributor to the emission of greenhouse gases. The Algerian policy of mastering energy has improved building energy efficiency since 1994 by introducing thermal regulation (DTR). However, energy consumption is still increasing instead of decreasing, which is mainly due to occupants’ behaviour which is difficult to estimate and predict. This paper explores the impact of households and housing characteristics on residential gas and electricity consumption in the 36 municipalities of the department of Djelfa (Algeria) which is located in an arid and semi-arid climate zone. This paper is based on GIS and statistical techniques. It considers the yearly gas and electricity energy consumption (2013) of the municipalities of the department of Djelfa. The method is organised in four steps: (a) a multiple linear regression is used to construct two estimative models of gas and electricity. The models have more than 93% of accuracy for both gas and electricity models; (b) estimating gas and electricity consumption for 2008 according to the developed models; (c) organisation of the census data of 2008 in five dimensions: the population distribution, household characteristics, housing type and occupancy, and finally household appliance ownership; (d) a set of sensitivity analysis is performed based on Principal Component Analysis (PCA) and Pearson’s bivariate correlation and finally a path analysis is performed based on Structural Equation Model (SEM) to assess the importance of each variable. The overall impact of all these variables indicates that increasing the household size is the first factor reducing the electricity and gas consumption followed by the housing surface, density, room occupancy, and older households, while increasing the education level and appliance ownership boosts both per-capita gas and electricity consumption.

Using energy profiles to identify university energy reduction opportunities

2016 ◽  
Vol 17 (2) ◽  
pp. 188-207 ◽  
Author(s):  
Nandarani Maistry ◽  
Harold Annegarn
Keyword(s):  
South Africa ◽  
Energy Efficiency ◽  
Energy Consumption ◽  
Quantitative Research ◽  
Electricity Consumption ◽  
Working Hours ◽  
Content Type ◽  
Academic Calendar ◽  
The University

Purpose – The purpose of this paper is to outline efforts at the University of Johannesburg, a large metropolitan university in Gauteng province, to examine energy efficiency within the context of the green campus movement, through the analysis of electricity consumption patterns. The study is particularly relevant in light of the cumulative 230 per cent increase in electricity costs between 2008 and 2014 in South Africa that has forced institutions of higher education to seek ways to reduce energy consumption. Design/Methodology/Approach – A quantitative research design was adopted for the analysis of municipal electricity consumption records using a case study approach to identify trends and patterns in consumption. The largest campus of the University of Johannesburg, which is currently one of the largest residential universities in South Africa, was selected as a case study. Average diurnal consumption profiles were plotted according to phases of the academic calendar, distinguished by specific periods of active teaching and research (in-session); study breaks, examinations and administration (out-of-session); and recesses. Average profiles per phase of the academic calendar were constructed from the hourly electricity consumption and power records using ExcelTM pivot tables and charts. Findings – It was found that the academic calendar has profound effects on energy consumption by controlling the level of activity. Diurnal maximum consumption corresponds to core working hours, peaking at an average of 2,500 kWh during “in-session” periods, 2,250 kWh during “out-of-session” periods and 2,100 kWh during recess. A high base load was evident throughout the year (between 1,300 and 1,650 kWh), mainly attributed to heating and cooling. By switching off the 350 kW chiller plant on weekdays, a 9 per cent electricity reduction could be achieved during out-of-session and recess periods. Similarly, during in-session periods, a 6 per cent reduction could be achieved. Practical implications – Key strategies and recommendations are presented to stimulate energy efficiency implementation within the institution. Originality Value – Coding of consumption profiles against the academic calendar has not been previously done in relation to an academic institution. The profiles were used to establish the influence of the academic calendar on electricity consumption, which along with our own observation were used to identify specific consumption reduction opportunities worth pursuing.

Energy Saving and Economic Growth: Empirical Analysis Based on Panel Data

2013 ◽  
Vol 805-806 ◽  
pp. 591-594
Author(s):  
Dong Heng Hao ◽  
Guo Zhu Li ◽  
Dian Ru Wang
Keyword(s):  
Economic Growth ◽  
Energy Consumption ◽  
Panel Data ◽  
Energy Saving ◽  
Information Disclosure ◽  
Industrial Structure ◽  
Electricity Consumption ◽  
Value Added ◽  
Energy Prices ◽  
Participation Mechanisms

we analyzed the relationship between energy conservation and economic using panel data. the reduction of energy consumption per unit of GDP and energy consumption per unit of industrial value-added will promote economic growth, however, lower electricity consumption per unit of GDP may inhibit economic growth. Finally, this article puts forward corresponding suggestions, including improving the relevant laws and regulations, speeding up the energy saving information disclosure, improving public participation mechanisms, speeding up the adjustment of industrial structure and technological innovations, and promoting the reform of energy prices.

Risk indicators for managing the energy procurement process

2015 ◽  
Vol 64 (2) ◽  
pp. 228-242
Author(s):  
Chiara Verbano ◽  
Maria Crema
Keyword(s):  
Price Volatility ◽  
Point Of View ◽  
Risk Indicators ◽  
Risk Exposure ◽  
High Price ◽  
Energy Prices ◽  
Content Type ◽  
Procurement Process ◽  
Energy Companies

Purpose – Energy commodities are characterised by rigid demand and high price volatility, linked to many variables such as climate factors, exchange rates, availability of resources. At the same time, the authorities often set prices, so wholesale energy companies need to create margins carefully by managing the procurement process and selecting appropriate tools to manage the risks associated with the volatility of energy prices. The purpose of this paper is to analyse and evaluate price and volume risks in the energy procurement process considering a “non-speculative” point of view, which is understudied in the literature review. Design/methodology/approach – The paper adopts a quantitative approach to risk evaluation, based on accounting indicators, and applies it to a large Italian energy wholesale company. Findings – A set of key risk indicators to measure price and volume risks is presented in the results, split into synthesis risk, unbalanced risks, modulation risks and risks derived from bilateral contracts. These indicators are applied to the case study, and each risk is prioritised and discussed. Originality/value – This contribution is one of the first attempts to analyse energy procurement risks in a non-speculative approach. The proposed method allows: first, to evaluate and prioritise the three major types in the energy procurement process, second, to observe the trend of risk exposure, third, the performance measurement of the procurement process, and fourth, benchmarking activities if widely implemented in the energy sector.

scholarly journals Application of the methodology related to the emission standard to specific railway line in comparison with parallel road transport: a case study

2018 ◽  
Vol 244 ◽  
pp. 03002 ◽  
Author(s):  
Iwona Rybicka ◽  
Ondrej Stopka ◽  
Vladimír Ľupták ◽  
Mária Chovancová ◽  
Paweł Droździel
Keyword(s):  
Global Warming ◽  
Czech Republic ◽  
Energy Consumption ◽  
Greenhouse Gases ◽  
Road Transport ◽  
Emission Standard ◽  
The Czech Republic ◽  
Railway Line ◽  
The Impact

At present, the impact of transport on the environment constitutes a serious problem. This mainly concerns energy consumption and production of greenhouse gases (GHG) that via their participation in greenhouse effect intensification contribute to global warming. In this paper, the calculations provided by the EN 16258: 2012 methodology will be applied to two modes of transport: railway and road transport. Subsequently, the methodology will be applied to a case study of a selected nonelectrified railway line in comparison with parallel road transport. In particular, energy consumption and production of greenhouse gases will be monitored depending on traveling the distance between selected cities in the Czech Republic.

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