A new model to investigate effects of subsidies for home solar power systems using system dynamics approach: A case study

Global warming contributes to the worldwide goal of a sustainable carbon-neutral society. Currently, hydroelectric, wind and solar power plants are the most competitive renewable technologies. They are limited to the primary resource availability, but while hydroelectric power plants (HPPs) can have storage capacity but have several geographical limitations, wind and solar power plants have variable renewable energy (VRE) with stochastic profiles, requiring a substantially higher investment when equipped with battery energy storage systems. One of the most affordable solutions to compensate the stochastic behaviour of VRE is the active participation of consumers with demand response capability. Therefore, the role of citizen energy communities (CECs) can be important towards a carbon-neutral society. This work presents the economic and environmental advantages of CECs, by aggregating consumers, prosumers and VRE at the distribution level, considering microgrid trades, but also establishing bilateral agreements with large-scale VRE and HPPs, and participating in electricity markets. Results from the case-study prove the advantages of CECs and self-consumption. Currently, CECs have potential to be carbon-neutral in relation to electricity consumption and reduce consumers’ costs with its variable term until 77%. In the future, electrification may allow CECs to be fully carbon-neutral, if they increase their flexibility portfolio.

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Net-Metering and Self-Consumption Analysis for Direct PV Groundwater Pumping in Agriculture: A Spanish Case Study

Applied Sciences ◽

10.3390/app9081646 ◽

2019 ◽

Vol 9 (8) ◽

pp. 1646 ◽

Cited By ~ 4

Author(s):

Alvaro Rubio-Aliaga ◽

Angel Molina-Garcia ◽

M. Socorro Garcia-Cascales ◽

Juan Miguel Sanchez-Lozano

Keyword(s):

Power Systems ◽

Power Plants ◽

Solar Power ◽

Developed Countries ◽

Multidimensional Analysis ◽

Groundwater Pumping ◽

Agriculture Sector ◽

Net Metering ◽

La Mancha

International policies mainly that are focused on energy-dependence reduction and climate change objectives have been widely proposed by most developed countries over the last years. These actions aim to promote the integration of renewables and the reduction of emissions in all sectors. Among the different sectors, agriculture emerges as a remarkable opportunity to integrate these proposals. Indeed, this sector accounts for 10% of the total greenhouse gas (GHG) emissions in the EU, representing 1.5% of gross domestic product (GDP) in 2016. Within the agriculture sector, current solutions for groundwater pumping purposes are mainly based on diesel technologies, leading to a remarkable fossil fuel dependence and emissions that must be reduced to fulfill both energy and environmental requirements. Relevant actions must be proposed that are focused on sustainable strategies and initiatives. Under this scenario, the integration of photovoltaic (PV) power plants into groundwater pumping installations has recently been considered as a suitable solution. However, this approach requires a more extended analysis, including different risks and impacts related to sustainability from the economic and energy points of view, and by considering other relevant aspects such as environmental consequences. In addition, PV solar power systems connected to the grid for groundwater pumping purposes provide a relevant opportunity to optimize the power supplied by these installations in terms of self-consumption and net-metering advantages. Actually, the excess PV power might be injected to the grid, with potential profits and benefits for the agriculture sector. Under this scenario, the present paper gives a multidimensional analysis of PV solar power systems connected to the grid for groundwater pumping solutions, including net-metering conditions and benefit estimations that are focused on a Spanish case study. Extensive results based on a real aquifer (Aquifer 23) located in Castilla La Mancha (Spain) are included and discussed in detail.

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Using HOMER Software, NREL's Micropower Optimization Model, to Explore the Role of Gen-sets in Small Solar Power Systems; Case Study: Sri Lanka

10.2172/15016073 ◽

2005 ◽

Cited By ~ 46

Author(s):

T Givler ◽

P Lilienthal

Keyword(s):

Sri Lanka ◽

Power Systems ◽

Optimization Model ◽

Solar Power

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Effect of Electric Load Management on the Performance of Off-Grid Solar Power Systems: A case study of 27 kWp Off-Grid System at UCAS Khanyounis Branch

2021 International Conference on Electric Power Engineering – Palestine (ICEPE- P) ◽

10.1109/icepe-p51568.2021.9423486 ◽

2021 ◽

Author(s):

Mohammed Mushtaha ◽

Wesam Sakallah

Keyword(s):

Power Systems ◽

Solar Power ◽

Load Management ◽

Electric Load ◽

Grid System

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Case Study of Direct Communication based Solar Power Systems in Sub-Saharan Africa for Levelled Energy Cost using Blockchain

ICC 2020 - 2020 IEEE International Conference on Communications (ICC) ◽

10.1109/icc40277.2020.9149004 ◽

2020 ◽

Author(s):

Omaji Samuel ◽

Nadeem Javaid ◽

Rabiya Khalid ◽

Muhammad Imran ◽

Mohsen Guizani

Keyword(s):

Power Systems ◽

Energy Cost ◽

Solar Power ◽

Sub Saharan Africa ◽

Direct Communication ◽

Sub Saharan

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A Case Study of Modeling and Simulation for Manufacturing, Installation, and Maintenance of Solar Power Systems

Volume 4: 19th Design for Manufacturing and the Life Cycle Conference; 8th International Conference on Micro- and Nanosystems ◽

10.1115/detc2014-35248 ◽

2014 ◽

Author(s):

Prashanth Irudayaraj ◽

Yitao Liu ◽

Feng Zhou ◽

Roger J. Jiao ◽

Joseph N. Goodman

Keyword(s):

Power Systems ◽

Modeling And Simulation ◽

Solar Power ◽

System Modeling ◽

Simulation Methods ◽

Output Analysis ◽

Two Systems ◽

Module System ◽

Three Phases

Solar power systems are becoming increasingly popular due to the fact that solar power can offer time and money saving solutions for off-grid and grid-connected homes, cabins, and businesses with clean and affordable energy. However, there are still significant opportunities to reduce the cost of solar power systems by optimizing system design. We employ system modeling and simulation methods to compare a commercial rooftop solar system with a new concept for the same application, namely Mega Module system. In order to accomplish this, a solar power system’s lifecycle is divided into three phases, namely manufacturing, installation, and maintenance. Specifically, a SysML-based conceptual model was first constructed, based on which, Arena simulation models were built for three phases of the two systems. Then, we performed input analysis on data collected onsite for the two systems, and output analysis of the theoretical seconds/watt of all three phases based on reasonable assumptions. The results of the simulation study indicate that although it increases the manufacturing time, the Mega Module system saves a significant amount of time in the installation phase and a relatively small amount of time in the maintenance phase, and thus can be more cost-effective in the long term. The case study further demonstrates the feasibility and potential to reduce costs of product-service systems by quick installation and optimization using system modeling and simulation methods.

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