scholarly journals Assessing Financial and Flexibility Incentives for Integrating Wind Energy in the Grid Via Agent-Based Modeling

Energies ◽  
2019 ◽  
Vol 12 (22) ◽  
pp. 4314 ◽  
Author(s):  
Maqbool ◽  
Baetens ◽  
Lotfi ◽  
Vandevelde ◽  
Eetvelde

This article provides an agent-based model of a hypothetical standalone electricity network to identify how the feed-in tariffs and the installed capacity of wind power, calculated in percentage of total system demand, affect the electricity consumption from renewables. It includes the mechanism of electricity pricing on the Day Ahead Market (DAM) and the Imbalance Market (IM). The extra production volumes of Electricity from Renewable Energy Sources (RES-E) and the flexibility of electrical consumption of industries is provided as reserves on the IM. Five thousand simulations were run by using the agent-based model to gather data that were then fit in linear regression models. This helped to quantify the effect of feed-in tariffs and installed capacity of wind power on the consumption from renewable energy and market prices. The consumption from renewable sources, expressed as percentage of total system consumption, increased by 8.17% for every 10% increase in installed capacity of wind power. The sharpest increase in renewable energy consumption is observed when a feed-in tariff of 0.04 €/kWh is provided to the wind farm owners, resulting in an average increase of 9.1% and 5.1% in the consumption from renewable sources while the maximum installed capacity of wind power is 35% and 100%, respectively. The regression model for the annualized DAM prices showed an increase by 0.01 €cents/kWh in the DAM prices for every 10% increase in the installed wind power capacity. With every increase of 0.01 €/kWh in the value of feed-in tariffs, the mean DAM price is lowered as compared to the previous value of the feed-in tariff. DAM prices only decrease with increasing installed wind capacity when a feed-in tariff of 0.04 €/kWh is provided. This is observed because all wind power being traded on DAM at a very cheap price. Hence, no volume of electricity is being stored for availability on IM. The regression models for predicting IM prices show that, with every 10% increase in installed capacity of wind power, the annualized IM price decreases by 0.031 and 0.34 €cents/kWh, when installed capacity of wind power is between 0 and 25%, and between 25 and 100%, respectively. The models also showed that, until the maximum installed capacity of wind power is less than 25%, the IM prices increase when the value of feed-in tariff is 0.01 and 0.04 €/kWh, but decrease for a feed-in tariff of 0.02 and 0.03 €/kWh. When installed capacity of wind power is between 25 and 100%, increasing feed-in tariffs to the value of 0.03 €/kWh result in lowering the mean IM price. However, at 0.04 €/kWh, the mean IM price is higher, showing the effect of no storage reserves being available on IM and more expensive reserves being engaged on the IM. The study concludes that the effect of increasing installed capacity of wind power is more significant on increasing consumption of renewable energy and decreasing the DAM and IM prices than the effect of feed-in tariffs. However, the effect of increasing values of both factors on the profit of RES-E producers with storage facilities is not positive, pointing to the need for customized rules and incentives to encourage their market participation and investment in storage facilities.

2022 ◽  
Vol 355 ◽  
pp. 02032
Author(s):  
Weiwei Jiang ◽  
Zhiyu Song ◽  
Zhongyan Wang ◽  
Ping Guo

Although Jilin Province has abundant forest reserves and has a relatively large carbon neutral advantage compared to other provinces, the installed capacity of thermal power is still relatively high, and the installed capacity of renewable energy such as wind power, photovoltaic and hydropower is insufficient. This paper builds a carbon emission model for the power generation industry in Jilin Province based on the characteristics of the power generation industry in Jilin Province and years of field test experience.


Energies ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 3217 ◽  
Author(s):  
Yongchao Zeng ◽  
Peiwu Dong ◽  
Yingying Shi ◽  
Yang Li

Renewable energy technologies (RETs) are crucial for solving the world’s energy dilemma. However, the diffusion rate of RETs is still dissatisfactory. One critical reason is that conventional energy technologies (CETs) are dominating energy markets. Emergent technologies that have inferior initial performance but eventually become new dominators of markets are frequently observed in various industries, which can be explained with the disruptive innovation theory (DIT). DIT suggests that instead of competing with incumbent technologies in the dominated dimension, redefining the competition on a two-dimensional basis is wise. Aiming at applying DIT to RET diffusion, this research builds an agent-based model (ABM) considering the order of entering the market, price, preference changing and RET improvement rate to simulate the competition dynamics between RETs and CETs. The findings include that the order of entering the market is crucial for a technology’s success; disruptive innovation is an effective approach to cope with the disadvantage of RETs as latecomers; generally, lower price, higher consistency with consumers’ preferences and higher improvement rate in the conventional dimension are beneficial to RET diffusion; counter-intuitively, increasing RET’s improvement rate in the conventional dimension is beneficial to RET diffusion when the network is sparse; while it is harmful when the network is densified.


2005 ◽  
Vol 23 (3) ◽  
pp. 361-374 ◽  
Author(s):  
Dave Toke

The author analyses the performance of the United Kingdom's ‘Renewables Obligation’ (RO) in the context of other renewable energy procurement regimes. Prevailing wisdom suggests that market-based procurement regimes for renewable energy are more cost-effective than fixed-price (‘feed-in tariff’) arrangements. In addition, market-based regimes are thought to favour corporate, rather than locally owned, schemes. However, the analysis in this paper disputes these strands of conventional wisdom. An analysis of the returns to wind-power developers under the British market-based RO and the German ‘renewable energy feed-tariff’ (REFIT) reveals that financial returns per MW of installed capacity are much higher in the case of the market-based British RO than in the German REFIT. On the other hand, there is evidence that cultural factors are a bigger influence on the patterns of ownership of wind-power schemes than whether procurement systems are market based or fixed price.


2013 ◽  
Vol 448-453 ◽  
pp. 1738-1741
Author(s):  
Ke Dang ◽  
Si Tong Liu

As a kind of new renewable energy, wind power has been used in power systems more and more. Wind power has a installed capacity more than 10% of the power grid’s where the wind resources are abundant in our country. Because the wind power has the characteristics of randomness, intermittence, uncontrollability and so on, we can’t be sure about the continuity and stability. With the increase of the wind power installed capacity, the influence of wind power is expanding. By applying the PSCSD, this paper analyse the power gird’s stability of different wind power proportion and different access points.


2021 ◽  
Author(s):  
Alan Bischoff ◽  
Ludmila Adam ◽  
David Dempsey ◽  
Andrew Nicol ◽  
Mac Beggs ◽  
...  

<p>Novel technologies to store hydrogen in geological formations can substantially enhance New Zealand’s renewable energy market and help mitigate climate change impacts. New Zealand already supplies about 80% of its electricity demands from renewable sources, mostly geothermal, hydro and wind power. However, over 60% of the country’s net energy consumption still comes from fossil fuels. In New Zealand, extensive production and large-volume (>50,000,000 Nm<sup>3</sup>) storage of green hydrogen will be essential to buffer diurnal and seasonal shortage of hydro and wind power generation in a future energy mix dominated by renewable sources. Geological storage, technology in use since the 1970’s, is currently considered the best large-scale option for hydrogen storage globally.</p><p>Here we present preliminary results of an ongoing study into the feasibility of storing hydrogen in sedimentary and volcanic rocks across New Zealand. The country’s varied geology and diverse cultural communities provide a unique setting to evaluate the technical capacity, socio-environmental aspirations, and costs-benefits of hydrogen geo-storage for future domestic and export markets. We draw our investigation upon a substantial legacy dataset of petroleum exploration drillholes and seismic reflection surveys coupled with information from sedimentary and volcanic outcrops to determine the most suitable geological formations for hosting large-volumes of hydrogen nationwide. Four possible types of hydrogen geo-storage are considered: (i) construction of artificial rock caves, (ii) injection of hydrogen into sedimentary rocks and aquifers, (iii) utilisation of depleted natural oil and gas reservoirs and infrastructure; and (iv) hydrogen storage in highly porous and permeable volcanic rocks, the last of which would be a world first.</p><p>New Zealand has an extensive installed petroleum infrastructure, including 2,500 km of high-pressure gas pipelines and 17,960 km of gas distribution network to support the development of new hydrogen energy enterprises. Multiple depleted or depleting petroleum fields (e.g. Ahuroa, Kapuni and Maui) contain excellent reservoirs and efficient seal rocks confined in large (>25 km<sup>2</sup>) geological structures that offer scope for hydrogen storage. Porosity and permeability in commercial reservoirs vary from 5 to 25% and often up to several thousand millidarcys (mD), respectively, with high values of up to 9900 mD reported in sandstones of the Maui field. Studies in volcanic reservoirs on Banks Peninsula, Oamaru and offshore Taranaki Basin demonstrate that large sections of volcanoes (up to 1 km<sup>3</sup>) frequently have porosities of ca 50% and permeabilities above 100 mD, which may provide opportunities for storing hydrogen at relatively shallow (ca 100 m) depths.</p><p>Further technical assessment is ongoing to determine microbiological activity, chemical stability of rock targets, and geological modelling in hydrogen-rich reservoirs. This technical assessment will be complemented by community consultation to develop pathways for acceptance of hydrogen geo-storage in the country. Mātauranga Māori (native indigenous knowledge) has real potential to guide renewable energy investments towards a long-term vision that prioritises intergenerational well-being and prosperity for the wider New Zealand society. This convergence of thinking, integrating scientific knowledge, industry aspirations, and societal necessities will provide a novel approach for sustainable growth of the hydrogen industry in New Zealand and abroad.</p>


2021 ◽  
Vol 13 (6) ◽  
pp. 3098
Author(s):  
Jing Wu ◽  
Zhongfu Tan ◽  
Keke Wang ◽  
Yi Liang ◽  
Jinghan Zhou

With the development of renewable energy, the grid connection is faced with great pressure, for its generation uncertainty and fluctuation requires larger reserve capacity, and higher operation costs. Energy storage system, as a flexible unit in the energy system, can effectively share the reserve pressure of the system by charging and discharging behaviors. In order to further improve the renewable energy utilization, the combination of wind power and energy storage for hybrid energy system is proposed. On considering the power generation characteristics, the objective functions are maximizing the system revenue and minimizing the system energy loss. Combined with the robust optimization theory, the model is transformed and solved. The results show that the application of the energy storage will effectively promote the renewable energy consumption, and the combination of the wind power and energy storage will achieve more effective utilization of the night-time wind power and cut down the total system cost.


2021 ◽  
Vol 15 ◽  
pp. 53-60
Author(s):  
A. Skujevska ◽  
F. Romagnoli ◽  
T. Zoss ◽  
I. Laicane ◽  
D. Blumberga

To achieve national target proposed by the Renewable Energy Source Directive 2009/28/EC, to also accomplish to the CO2 emission reduction targets and to decrease the energy dependency Latvian government is planning to adopt different strategy policies such as feed-in tariffs (FITs) and capital subsidies, in order to incentive investor to use renewable based technology for power production Neverthelss it is crucial to understand in long term perspective the effect and the costs of a specific policy (made even by the combination of different policy tools) applied to the energy sector. Using this model, or an extended version of it, a cost/benefit analysis of a different set of policy scenarios can be carried out. More in specific this study is driving its attention at a situation where it is possible to increase the share of wind power in the energy balance respect the use of natural gas as primary energy for power generation. Four political instruments are chosen in this model: subsidies for construction of new wind-power facilities, information package at all power supply levels for risk reduction and reduction of maintenance costs through a learning effect. The simulation period is from 2010 to 2110. The analysis of policy instruments for development of renewable energy resources in power system illustrates wide potential of system dynamic modelling use for statement of priorities on power diversification. The policy instrument of use of subsidies is a crucial priority. Feed-in tariff is not providing an evident. The reason of that can be related to the key aspect on the way Latvia is organizing its feed-in tariff policy.


2017 ◽  
Vol 1 (1) ◽  
Author(s):  
Muhammad Rizal Fachri ◽  
Hendrayana Hendrayana

Energy needs in Indonesia in particular and the world in general continue to rise due to population growth, economic growth and energy consumption patterns themselves are constantly increasing. One of the fast growing renewable energy in the world today is wind energy. Wind energy is a renewable energy that is very flexible. In general, the utilization of wind power in Indonesia is less attention. Until 2004, the installed capacity of wind power utilization is only up to 0.5 MW from 9:29 GW potential. One method used to measure the wind energy potential of wind energy for electricity generation is by using the Weibull method. From the analysis that has been carried out by the method of Weibull can be concluded that the wind energy potential of wind energy for electricity generation in Banda Aceh does not meet the eligibility criteria.


2017 ◽  
Vol 8 (2) ◽  
pp. 228
Author(s):  
Flávia de Paiva Medeiros de Oliveira ◽  
Cristina Paiva Serafim Gadelha Campos

A preocupação com o resguardo do patrimônio ambiental tem assumido contornos cada vez mais relevantes, inclusive podendo ser destacados seus efeitos na seara laboral. Procurando associar ecologia e economia, a criação e manutenção de empregos verdes se revelam alternativas eficazes para garantir que atividades profissionais serão desenvolvidas sem causar prejuízos ao meio ambiente, bem como que os respectivos empregados gozarão de condições decentes de trabalho. O setor energético, por sua vez, através da exploração precípua de energias renováveis, detém potencial significativo para ofertar empregos verdes. Em vista disso, o presente trabalho tem como objetivo analisar se a exploração de uma das fontes renováveis largamente disponíveis no Brasil – qual seja, a eólica – tem o condão de contribuir com o esverdeamento laboral no país, notadamente sob a ótica do empregado, considerando as condições de trabalho às quais é submetido. Palavras-chave: Emprego verde. Setor energético. Energia renovável. Energia eólica. Trabalho decente. Abstract: The concern with the preservation of the environmental patrimony has assumed more and more relevant contours, including its effects in the labor market. Seeking to associate ecology and economics, the creation and maintenance of green jobs prove to be effective alternatives to ensure that professional activities will be carried out without causing harm to the environment, and that their employees will enjoy decent working conditions. The energy sector, in turn, through the primary exploitation of renewable energies, holds significant potential to offer green jobs. The aim of this study is to analyze whether the exploitation of one of the renewable sources widely available in Brazil - wind power - has the potential to contribute to the greening of labor in the country, especially from the perspective of the employee, considering the working conditions to which it is subject.Keywords: Green employment. Energy Sector. Renewable energy. Wind power. Decent work.


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