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Determination of annual heat losses from heat and steam pipeline networks and economic analysis of their thermomodernisation

Kruczek, Tadeusz - In: Energy 62 (2013) C, pp. 120-131

features of the pipelines under consideration. The method is particularly useful for extensive and complex heat or steam … pipelines. A novel method for the determination of annual heat losses from overhead pipelines into the environment has been … developed in the work. The heat losses from the pipelines are generated during the whole year. The proposed method is based on …

Persistent link: https://www.econbiz.de/10011053083

Energy consumption, costs and environmental impacts for urban water cycle services: Case study of Oslo (Norway)

Venkatesh, G.; Brattebø, Helge - In: Energy 36 (2011) 2, pp. 792-800

Energy consumption in the operation and maintenance phase of the urban water and wastewater network is directly related to both the quantity and the desired quality of the supplied water/treated wastewater – in other words, to the level of service provided to consumers. The level of service is...

Persistent link: https://www.econbiz.de/10011055764

Self-scheduling of a wind producer based on Information Gap Decision Theory

Moradi-Dalvand, M.; Mohammadi-Ivatloo, B.; Amjady, N.; … - In: Energy 81 (2015) C, pp. 588-600

In a competitive market where all producers must participate in the market, WPPs (wind power producers) face two sources of uncertainty: (i) future market prices, and (ii) their production capability in coming hours. In this paper a risk-constrained optimal self-scheduling method for a WPP...

Persistent link: https://www.econbiz.de/10011209581

Reactive power price clearing using multi-objective optimization

Reddy, S. Surender; Abhyankar, A.R.; Bijwe, P.R. - In: Energy 36 (2011) 5, pp. 3579-3589

This paper presents a new multi-objective optimization based reactive power price clearing (RPPC) mechanism, considering voltage stability. Use of realistic voltage dependent load models is important in power system analysis and optimization. The influence of the same on RPPC is investigated in...

Persistent link: https://www.econbiz.de/10010807265

Long term impact of wind power generation in the Iberian day-ahead electricity market price

Pereira, Adelino J.C.; Saraiva, João Tomé - In: Energy 55 (2013) C, pp. 1159-1171

The Iberian power systems went through important changes at the legal, regulatory and organizational levels in the last 20 years. One of the most relevant ones was the increasing penetration of distributed generation, namely wind parks, together with the development of the common market...

Persistent link: https://www.econbiz.de/10010807306

Evolution and current status of demand response (DR) in electricity markets: Insights from PJM and NYISO

Walawalkar, Rahul; Fernands, Stephen; Thakur, Netra; … - In: Energy 35 (2010) 4, pp. 1553-1560

In electricity markets, traditional demand side management programs are slowly getting replaced with demand response (DR) programs. These programs have evolved since the early pilot programs launched in late 1990s. With the changes in market rules the opportunities have generally increased for...

Persistent link: https://www.econbiz.de/10010807477

Optimal investment strategies in decentralized renewable power generation under uncertainty

Fleten, S.-E.; Maribu, K.M.; Wangensteen, I. - In: Energy 32 (2007) 5, pp. 803-815

This paper presents a method for evaluating investments in decentralized renewable power generation under price un certainty. The analysis is applicable for a client with an electricity load and a renewable resource that can be utilized for power generation. The investor has a deferrable...

Persistent link: https://www.econbiz.de/10010808039

Utility scale hybrid wind–solar thermal electrical generation: A case study for Minnesota

Reichling, J.P.; Kulacki, F.A. - In: Energy 33 (2008) 4, pp. 626-638

The performance of a hybrid wind–solar power plant in southwestern Minnesota is modeled for a 2-yr period using hourly wind and solar insolation data. The wind portion of the plant consists of four interconnected wind farms within a radius of 90km. The solar component of the plant is a...

Persistent link: https://www.econbiz.de/10010808048

Optimal bidding strategy in a competitive electricity market based on agent-based approach and numerical sensitivity analysis

Mahvi, M.; Ardehali, M.M. - In: Energy 36 (2011) 11, pp. 6367-6374

The objective of this study is to present a new method for determination of the optimal bidding strategies among generating companies (GenCo) in the electricity markets using agent-based approach and numerical sensitivity analysis (NSA). While agent-based approach provides for decision making,...

Persistent link: https://www.econbiz.de/10010809199

Generation expansion planning (GEP) – A long-term approach using system dynamics and genetic algorithms (GAs)

Pereira, Adelino J.C.; Saraiva, João Tomé - In: Energy 36 (2011) 8, pp. 5180-5199

This paper presents a model to solve the Generation Expansion Planning (GEP), problem in competitive electricity markets. The developed approach recognizes the presence of several generation agents aiming at maximizing their profits and that the planning environment is influenced by...

Persistent link: https://www.econbiz.de/10010809315