نتایج جستجو برای: Electricity market uncertainty

تعداد نتایج: 336241  

The Iranian electricity industry has been restructured following the global experiences. The main objective of restructuring is transition from natural monopoly towards competition in order to improve efficiency. Currently, the Iranian electricity market is performing as imperfect competition and Pay-as-Bid (PAB) auctions are the major trade mechanism in this market. This paper proves that Supp...

M. H. Javidi, M. K. Sheik-El-Eslami, M. P. Moghaddam, T. Barforoushi,

Medium-term modeling of electricity market has essential role in generation expansion planning. On the other hand, uncertainties strongly affect modeling and consequently, strategic analysis of generation firms in the medium term. Therefore, models considering these uncertainties are highly required. Among uncertain variables considered in the medium term generation planning, demand and hyd...

This paper proposes a stochastic framework for demand response (DR) aggregator to procure DR from customers and sell it to purchasers in the wholesale electricity market. The aggregator assigns fixed DR contracts with customers based on three different load reduction strategies. In the presented problem the uncertainty of market price is considered and the risk of aggregator participation is ma...

Journal: :international journal of smart electrical engineering 2015
atefeh zomorodi moghadam hossein javidi dasht bayaz javad saebi

this paper proposes a stochastic framework for demand response (dr) aggregator to procure dr from customers and sell it to purchasers in the wholesale electricity market. the aggregator assigns fixed dr contracts with customers based on three different load reduction strategies. in the presented problem the uncertainty of market price is considered and the risk of aggregator participation is ma...

بدری, علی , رشیدی نژاد, مسعود, طاهری, ایمان ,

In this paper, Generation Companies (GENCOs) bidding in wholesale electricity market is explained with considering the effect of transmission network and uncertainty about bidding strategy adopted by rival GENCOs. Due to oligopolistic restructured electricity market, economic model of supply function equilibrium is used for modeling GENCOs competing. In this competition, each GENCO is in search...

2007
Veronika Grimm Gregor Zoettl

We analyze a market game where firms choose capacities under uncertainty about future market conditions and make output choices after uncertainty has unraveled. We show existence and uniqueness of equilibrium under imperfect competition and establish that capacity choices by strategic firms are generally too low from a welfare point of view. We also demonstrate that strategic firms choose even ...

2012
H. M. I. Pousinho J. P. S. Catalão

This paper deals with the development of offering strategies for a wind power producer considering a stochastic model. Several scenarios are analyzed and two kinds of uncertainty are simultaneously handled: wind power and electricity market prices. The proposed approach allows evaluating production and offering strategies to be submitted to the electricity market with the goal of maximizing pro...

2017
Athanasios A. Rentizelas Athanasios I. Tolis Ilias P. Tatsiopoulos

The electricity markets have undergone significant changes during the last years. On the one hand, the market deregulation has increased significantly the uncertainty on future electricity prices. On the other hand, the Kyoto protocol and the establishment of emission restrictions, as well as the development of emission trading systems has added another expense stream for conventional fuel elec...

Virtual power plant (VPP) can be studied to investigate how energy is purchased or sold in the presence of electricity market price uncertainty. The VPP uses different intermittent distributed sources such as wind turbine, flexible loads, and locational marginal prices (LMPs) in order to obtain profit. VPP should propose bidding/offering curves to buy/sell from/to day-ahead market. In this pape...

2015
Wolf Heinrich Reuter Jana Szolgayová Sabine Fuss Michael Obersteiner

The liberalization of electricity markets in recent years has enhanced competition among powergenerating firms facing uncertain decisions of competitors and thus uncertain prices. At the same time, promoting renewable energy has been a key ingredient in energy policy seeking to de-carbonize the energy mix. Public incentives for companies to invest in renewable technologies range from feed-in ta...

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