Industrial Power Rates in the Mid-Eighties

1976 ◽  
Vol 98 (4) ◽  
pp. 547-552
Author(s):  
R. M. Keith ◽  
G. R. Morris ◽  
B. Mangione
Keyword(s):  
Fossil Fuel ◽  
Electrical Power ◽  
Construction Costs ◽  
Plant Construction ◽  
Financing Costs ◽  
Rate Base ◽  
Capital Financing ◽  
Rate Design ◽  
The Impact ◽  
Fuel Costs

The full impact of higher cost fuel and plant construction costs have not been factored into today’s industrial electrical power rates. New power plant units committed in the late sixties and early seventies at sharply higher costs, higher financing charges and the phasing in of higher fossil fuel costs will create the need for sizeable rate increases over the next eight to ten years. This paper presents one technique for forecasting future industrial rates which takes into account the impact of the major parameters of fuel, cost of capital (financing) and the utility’s rate base on the development of customer class revenue. A sensitivity analysis is included which examines the effect of changes in fuel costs, new rate design proposals and financing costs. It is shown that these variations will add from 0.72 to 1.85 cents/kWh to the projected base rate of 2.85 cents/kWh in 1985. This is a total increase of over 94–154 percent compared to the actual rate of 1.85 cents/kWh in 1974.

Synergy of an SMR for Addressing Remote Communities Non-Nuclear Waste

2020 ◽  
Author(s):  
Glenn Harvel
Keyword(s):  
Nuclear Waste ◽  
Fossil Fuel ◽  
District Heating ◽  
Environmental Load ◽  
Remote Communities ◽  
Waste Products ◽  
Remote Community ◽  
Wide Range ◽  
The Impact ◽  
Fuel Costs

Abstract SMRs are a popular topic with a significant number of designs with a wide range of sizes. There has been some assessment done with respect to non-electrical applications including district heating and desalination. The drive of this type of work is to find alternative uses for the SMRs so that the thermal energy is more effective and hence the SMR is more economical. This work is similar in that it studies the synergy that might exist between a remote community and the SMR. Most work for SMRs related to remote communities with the impact as one-way, that is the benefit of the SMR to the community yet the SMR is a separate plant. The consideration here is that the SMR could be used to burn the non-nuclear waste products of the community and return useful products. An example is the plastics generated by the community can be converted into a usable fossil fuel, such as kerosene, by using the heat energy of the SMR. The SMR then has a dependency on the community waste stream. In this manner, the environmental load of the community is reduced yet the community also obtains a locally produced fuel that could be used for heating or transport outside of the community. Considering that diesel fuel costs can be extremely high in remote communities, methods to reduce the fuel costs, including manufacture of their own fuel, can result in a synergistic or symbiotic relationship between the community and the SMR and the community can then have a centralized energy area for supporting neighbouring communities.

scholarly journals Investigation of the Impact of Large-Scale Integration of Electric Vehicles for a Swedish Distribution Network

Energies ◽  
2019 ◽  
Vol 12 (24) ◽  
pp. 4717 ◽  
Author(s):  
Sylvester Johansson ◽  
Jonas Persson ◽  
Stavros Lazarou ◽  
Andreas Theocharis
Keyword(s):  
Electric Vehicles ◽  
Power Distribution ◽  
Large Scale ◽  
Electrical Power ◽  
Distribution Network ◽  
Transport Sector ◽  
Smart Charging ◽  
Large Scale Integration ◽  
Scale Integration ◽  
The Impact

Social considerations for a sustainable future lead to market demands for electromobility. Hence, electrical power distribution operators are concerned about the real ongoing problem of the electrification of the transport sector. In this regard, the paper aims to investigate the large-scale integration of electric vehicles in a Swedish distribution network. To this end, the integration pattern is taken into consideration as appears in the literature for other countries and applies to the Swedish culture. Moreover, different charging power levels including smart charging techniques are examined for several percentages of electric vehicles penetration. Industrial simulation tools proven for their accuracy are used for the study. The results indicate that the grid can manage about 50% electric vehicles penetration at its current capacity. This percentage decreases when higher charging power levels apply, while the transformers appear overloaded in many cases. The investigation of alternatives to increase the grid’s capabilities reveal that smart techniques are comparable to the conventional re-dimension of the grid. At present, the increased integration of electric vehicles is manageable by implementing a combination of smart gird and upgrade investments in comparison to technically expensive alternatives based on grid digitalization and algorithms that need to be further confirmed for their reliability for power sharing and energy management.

scholarly journals Damping Studies on PMLG-Based Wave Energy Converter under Oceanic Wave Climates

Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 920
Author(s):  
Yue Hong ◽  
Irina Temiz ◽  
Jianfei Pan ◽  
Mikael Eriksson ◽  
Cecilia Boström
Keyword(s):  
Wave Energy ◽  
Energy Production ◽  
Full Range ◽  
Electrical Power ◽  
Damping Coefficient ◽  
Irregular Wave ◽  
Ocean Wave Energy ◽  
Optimal Damping ◽  
The Impact

Wave energy converters (WECs), which are designed to harvest ocean wave energy, have recently been improved by the installation of numerous conversion mechanisms; however, it is still difficult to find an appropriate method that can compromise between strong environmental impact and robust performance by transforming irregular wave energy into stable electrical power. To solve this problem, an investigation into the impact of varied wave conditions on the dynamics of WECs and to determine an optimal factor for WECs to comply with long-term impacts was performed. In this work, we researched the performance of WECs influenced by wave climates. We used a permanent magnet linear generator (PMLG)-based WEC that was invented at Uppsala University. The damping effect was first studied with a PMLG-type WEC. Then, a group of sea states was selected to investigate their impact on the power production of the WEC. Two research sites were chosen to investigate the WEC’s annual energy production as well as a study on the optimal damping coefficient impact. In addition, we compared the WEC’s energy production between optimal damping and constant damping under a full range of sea states at both sites. Our results show that there is an optimal damping coefficient that can achieve the WEC’s maximum power output. For the chosen research sites, only a few optimal damping coefficients were able to contribute over 90% of the WEC’s annual energy production. In light of the comparison between optimal and constant damping, we conclude that, for specific regions, constant damping might be a better choice for WECs to optimize long-term energy production.

FAKTOR PENANGULANGAN TERJADINYA WASTE PADA PROYEK KONSTRUKSI DI SURABAYA

EXTRAPOLASI ◽  
2020 ◽  
Vol 17 (2) ◽  
pp. 1-10
Author(s):  
Michella Beatrix ◽  
Nurul Rochmah ◽  
Gede Sarya ◽  
Pebru Dwijayanto
Keyword(s):  
Waste Management ◽  
Construction Projects ◽  
Positive Impact ◽  
Scale Construction ◽  
Small Scale ◽  
Construction Costs ◽  
Warehouse Storage ◽  
The Right ◽  
The Impact ◽  
Material Requirements

AbstractLarge and small scale construction projects have waste that cannot be predicted in advance, even the amount cannot be predicted directly, whether it is in large or small amounts. The existence of waste can have a significant impact that can affect construction costs. Waste can have both negative and positive impacts. Good waste management will have a positive impact on the company in terms of cost, even time, and quality, but if the waste that occurs cannot be handled or managed properly it will harm the company in terms of cost, time, and even in terms of quality. In this case, the party that always gets the impact of the waste is the contractor.This study focuses on mitigating the occurrence of waste that is how to minimize it. Thisstudy uses the distribution of questionnaires to the contractor in Surabaya. The results of this study are 5 item indicators on how to minimize the highest ranking. The 5 items are Updating material requirements, Mixing, transporting, and placing concrete at the right time, Increasing the competence and expertise of labor, Provision of good and adequate material/warehouse storage facilities, and accurate material measurement.  Abstrak Proyek konstruksi dalam skala besar maupun kecil, memiliki waste yang tidak dapat diprediksi sebelumnya, bahkan jumlahnya pun tidak dapat diprediksi secara langsung, apakah itu dalam jumlah besar ataupun jumlah yang kecil. Adanya waste dapat memberikan dampak yang signifikan yang dapat mempengaruhi biaya konstruksi. Pada dasarnya waste dapat memberikan dampak negatif maupun positif. Pengelolaan waste yang baik akan memberikan dampak positif bagi perusahaan dalam segi biaya, bahkan waktu dan mutu, namun apabila waste yang terjadi tidak dapat diatasi atau dikelola dengan baik maka akan memberikan dampak negatif bagi perusahaan dalam segi biaya, waktu bahkan dalam hal mutu. Dalam hal ini pihak yang selalu mendapatkan dampak dari adanya waste adalah pihak kontraktorPenelitian ini memfokuskan pada faktor penanggulangan terjadinya waste yaitu cara meminimalisirnya. Penelitian ini menggunakan penyebaran kuisioner kepada pihak kontraktor di Surabaya. Hasil dari penelitian ini adalah 5 item indicator cara meminimalisir yang memiliki ranking tertinggi. 5 item tersebut adalah Updating kebutuhan material, Mencampur, mengangkut dan menempatkan beton pada waktu yang tepat, Meningkatkan kompetensi dan keahlian tenaga kerja, Penyediaan fasilitas penyimpanan material/gudang yang baik dan memadai, dan Pengukuran bahan yang akurat.

scholarly journals Self Evaluation: Building Student Self-awareness and Competence

2018 ◽  
Author(s):  
Denard Lynch
Keyword(s):  
Student Assessment ◽  
Electrical Power ◽  
Engineering Ethics ◽  
Self Awareness ◽  
Self Assessment ◽  
Self Evaluation ◽  
Student Assessments ◽  
Second Year ◽  
The Impact ◽  
Junior Students

This paper discusses the results of two experiments in self assessment and discusses their value in evaluating student consciousness of their competence, and the opportunity to improve self-awareness and competence in students. The data was gathered from two different engineering courses. The first experiment was conducted in a second-year course on basic electronics and electrical power. As part of the final examination, students were asked to assess their confidence in their answer to each question. The student self-assessment was compared to the actual result in an effort to determine the student’s perception of their competence. Student assessment was coded with respect to consciousness and competence. The second experiment was performed on a midterm examination in engineering ethics and professionalism, a senior course discussing the impact and interaction of the engineering profession on society. Students were given an annotated exemplar and a marking rubric and asked to grade their own midterm submissions. The student assessments were compared to the instructor assessment and again the results were coded with respect to consciousness and competence. The results showed a contrast between the second-year and senior courses. For the second-year course, 50.3% were coded as consciously competent or incompetent. In the senior course, 80% of students were coded as consciously competent. The comparison of the two results suggest that senior students, given suitable instruction, are more aware of their competence than junior students suggesting that current methods do develop an improved awareness of competence, although other factors may be relevant. It is suggested that student awareness be formally monitored, and results used to modify pedagogy to improve and accelerate consciousness in graduates.  

Analyzing the impact of fossil fuel import reliance on electricity prices: The case of the Iberian Electricity Market

2017 ◽  
Vol 28 (7) ◽  
pp. 687-705 ◽  
Author(s):  
Blanca Moreno ◽  
María T García-Álvarez
Keyword(s):  
Carbon Dioxide ◽  
Electricity Market ◽  
Fossil Fuel ◽  
Carbon Dioxide Emission ◽  
High Energy ◽  
Electricity Production ◽  
The European Union ◽  
Electricity Prices ◽  
The Impact ◽  
The Eu

Spain and Portugal are highly dependent on energy from abroad, importing more than 70% of all the energy they consume. This high energy dependence could involve important effects on the level and stability of their electricity prices as a half the gross electricity generated in both countries came from power stations using imported combustible fuels (such as natural gas, coal and oil). In general, changes in the prices of these fossil fuels can directly affect household electricity prices, since generation costs are likely to be transmitted through to the wholesale electricity market. Moreover, in the framework of the European Union Emission Trading System, electricity production technologies tend to incorporate their costs of carbon dioxide emission allowances in sale offers with the consequent increase of the electricity prices. The objective of this paper is to analyze the influence of fossil fuel costs and prices of carbon dioxide emission allowances in the EU on the Spanish and Portuguese electricity prices. With this aim, a maximum entropy econometric approach is used. The obtained results indicate that not only the price of imported gas are very important in explaining Spanish and Portuguese electricity prices but also the price of carbon dioxide emission allowances in the EU.

Full scale co-digestion of organic waste

2000 ◽  
Vol 41 (3) ◽  
pp. 195-202 ◽  
Author(s):  
H. Kübler ◽  
K. Hoppenheidt ◽  
P. Hirsch ◽  
A. Kottmair ◽  
R. Nimmrichter ◽  
...  
Keyword(s):  
Negative Impact ◽  
Biogas Production ◽  
Electrical Power ◽  
Nutrient Content ◽  
Primary Energy ◽  
Gas Production ◽  
Waste Streams ◽  
Volatile Solids ◽  
Operation Results ◽  
The Impact

Operational results of a co-digestion facility were assessed over a period of 18 months. The organic fraction of municipal solid waste (OFMSW) contains a considerable amount of contaminants and grit (up to 6% w/w). A BTA-Pulper efficiently treated the different waste streams and converted a high amount of volatile solids (VS) into the digester feedstock. The seasonal fluctuations of the waste composition significantly influenced the biogas production. The impact of this seasonally variant degradability of VS had to be considered by evaluating the operation results. The waste streams investigated did not show any negative impact on digester performance. The hydraulic retention time (HRT) in the digester considerably affected the VS-reduction. Despite a considerable decrease of VS-degradation a reduction of HRT from 14 to 8 days slightly improves the gas production rate (GPR). An activated sludge system efficiently reduced the pollution of the effluent.The nutrient content of the anaerobic compostwas favourable and the content of pollutants was low. The facility produced surplus electrical power up to 290 MJ/t. An overall energy balance shows that the facility substitutes primary energy.

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