Simultaneity in Renewable Building Energy Supply—A Case Study on a Lecturing and Exhibition Building on a University Campus Located in the Cfb Climate Zone

Gehlert, Gunther; Wiegand, Marlies; Lymar, Mariya; Huusmann, Stefan

doi:10.3390/su141912538

Cited by 3 publications

(2 citation statements)

References 28 publications

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“…Grid-connected PV system and WT 1,213 kW using simple tarrif and RE Fraction up to 82% (energy contribution) 8 G. Gehlert, M. Wiegand, et al 2022 [18].…”

Section: Meunasahmentioning

confidence: 99%

Techno-economic Analysis and Optimization of Renewable Energy Forecasting at Universitas Jenderal Achmad Yani

Iskandar,

Nurfatah,

Daelami

et al. 2023

ECT

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The availability of electrical energy ensures operational sustainability in everyday life, including the educational environment. The possibility of easier renewable energy installation encourages the goal of growing the installation to be affordable. Universitas Jenderal Achmad Yani is one of the campuses that has the capacity to use renewable energy and has a role in environmental awareness in accordance with the university's future vision. In light of this, a hybrid photovoltaic (PV), diesel, and battery plant design is presented as an alternative power plant to supplement conventional energy sources. However, it is critical to examine the long-term capital and profit estimations that must be considered. The hybrid plant is proposed in two configurations, grid-connected and off-grid. In this paper, modeling and simulation are performed using Net Present Cost (NPC) prices from the Ministry of Energy and Mineral Resources (MEMR) rooftop PV installation planning guidelines and inflation estimations from the Republic of Indonesia's Ministry of Finance. Furthermore, until the contribution of energy generated in the simulation is displayed, the production and consumption of electrical energy required for the selected building instances are generated. Hybrid plant modeling has been completed at Universitas Jenderal Achmad Yani’s Faculty of Health Sciences and Technology (FHST) and Rectorate buildings. According to the simulation results, the NPC cost for the next 25 years is anticipated to be Rp 1,047,534,000, with a total electrical energy production of 729,807 kWh/year and a renewable energy contribution >91.4%. Furthermore, from a technological and economic standpoint, a grid-connected hybrid generation system is advocated

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“…Grid-connected PV system and WT 1,213 kW using simple tarrif and RE Fraction up to 82% (energy contribution) 8 G. Gehlert, M. Wiegand, et al 2022 [18].…”

Section: Meunasahmentioning

confidence: 99%

Techno-economic Analysis and Optimization of Renewable Energy Forecasting at Universitas Jenderal Achmad Yani

Iskandar,

Nurfatah,

Daelami

et al. 2023

ECT

View full text Add to dashboard Cite

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“…The articles [2,3,4,5] provide an overview of recent research and developments in the use of renewable energy sources for building applications, with a focus on energy efficiency. The authors explore different renewable energy sources, including solar, wind, and geothermal, and discuss their potential for use in building applications.…”

Section: Introductionmentioning

confidence: 99%

Efficiency of the Renewable Energy Sources Application for an Autonomous Heat Supply System

Denysov¹

2023

Sist. dosl. energ. (Online)

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Description of the developed software and information complex for modeling autonomous heat supply systems provided, which allows optimizing the selection of units and their operation modes and ensuring the production and redistribution of thermal energy in accordance with the schedule of consumers. Optimized modes simulation operation of the autonomous heat supply system for a cottage village based on local energy resources with minimal use of external energy sources performed. The use of software and information complex made it possible to calculate the parameters that provide optimal coverage of the heat load schedule of a cottage settlement based on local energy resources. For the calculation, the predicted values of the installed thermal power of the units and the heat load graph which was obtained by adapting the real annual graph of the external temperature of Stockholm to the geographical location of the Kyiv region were used. The developed new software and information complex provide an opportunity for hourly modeling, research into the optimal modes of operation of heat units, and evaluation of the effectiveness of the use of renewable energy sources in autonomous heat supply systems. In the developed software and information complex, the model of optimization of operating modes is applied, which belongs to the class of problems of optimal loading of generating capacities of power systems with the criterion of minimizing costs for production, accumulation, and consumption of thermal energy. An example of simulation results using a heat load schedule for a selected typical day is presented. The obtained results indicate a decrease in the specific cost of hourly heat supply with an increase in the part of thermal energy supplied at the expense of renewable energy sources. This is due to a decrease in the share of gas, and in general, any other generation based on fossil fuel technologies, in the total volume of heat supply. Thus, the effectiveness of the use of renewable energy sources based on local energy resources as part of the heat supply system of the cottage village was confirmed. Keywords: autonomous heat supply, the efficiency of renewable energy sources based on local energy resources.

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Techno-Environmental Assessment of Electrified Road in Laem Chabang Port, Thailand

Thanasrivanitchai,

Vorarat,

Phdungsilp

2024

Inter J Ener Clean Env

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Increased awareness of decarbonization and high fuel prices have induced a need for a wider deployment of alternative energy sources. Battery-powered electric trucks using an electrified road system offer a promising solution. This paper aims to evaluate the fuel consumption and environmental benefits of a 6 km road in Laem Chabang Port, Thailand, with a prototype system based on conductive charging from below. Battery capacity penetrations were designed for 1258 trucks traveling on weekdays. The annual electricity demand reached 1.608 TWh, and the flexible demand reached 1.65 TWh. The input was Thailand's standard electricity, with one 50 kVA power substation per 0.0016 km2 and a 22 kV/400-230 V voltage system. Penetration required a capacity of 525 kWh. The findings indicate that fuel consumption was 592.43 TWh, and CO2 emissions were 51.63 MtCO2 annually. The electrified road system was evaluated with time series, fixed-effect, and tobit regressions. The time series analysis revealed that CO2 emissions would be nearly zero by 2060, with an annual 4% increase in Laem Chabang's gross domestic product. A fixed-effect analysis signified the findings with Thailand's recent potential, whereas the tobit regression represented the influence of possible changes. These regressions demonstrated that variations in revenue, oil resources, openness to the sea, and political stability significantly affected CO2 emissions, although there was no change in the implementation of the electrified road system.

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Simultaneity in Renewable Building Energy Supply—A Case Study on a Lecturing and Exhibition Building on a University Campus Located in the Cfb Climate Zone

Cited by 3 publications

References 28 publications

Techno-economic Analysis and Optimization of Renewable Energy Forecasting at Universitas Jenderal Achmad Yani

Techno-economic Analysis and Optimization of Renewable Energy Forecasting at Universitas Jenderal Achmad Yani

Efficiency of the Renewable Energy Sources Application for an Autonomous Heat Supply System

Techno-Environmental Assessment of Electrified Road in Laem Chabang Port, Thailand

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